Exelon Corporation (EXC)

Company ID: 196 | CIK: 0001109357
10-Q view:
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Segments are charted by their disclosed metrics (revenue, segment profit, etc.). Each line is a single segment. Reconciliation/corporate items are excluded. Major customers are shown as a percentage of revenue. Operational KPIs are grouped by metric concept; sub-metrics appear as separate lines.

Geographic Segments

Business Unit / Product Segments

Major Customers (% of Revenue)

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Operational KPIs

Average electric revenue (arpu)

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Nuclear Decommissioning Trust Funds (aum)

Generating Capacity (capacity)

Customers (customers)

Customers Served (customers_served)

Operations-driven GHG Emissions (emissions_co2)

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Natural Gas Deliveries (gas_production)

Generating Capacity (generation_capacity)

Electric Supply (generation_volume)

Total Employees (headcount)

Spent Nuclear Fuel (inventory_units)

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Nuclear production cost (lifting_cost)

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401(k) matching contributions (other)

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Allowance for uncollectible accounts (other)

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Alternative supplier load share (other)

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Alternative supplier market share (other)

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Asbestos bodily injury reserve (other)

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Asset retirement obligation (other)

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Available credit facility capacity (other)

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Average Electric Margin (other)

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Average Electric Revenue (other)

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Average Electric Supply Cost (other)

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Average Margin (other)

Average Purchased Power Cost (other)

Average Revenue (other)

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Average electric margin (other)

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Average electric margin per MWh (other)

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Average electric revenue (other)

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Average electric revenue per MWh (other)

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Average electric supply cost (other)

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Average electric supply cost per MWh (other)

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Average margin (other)

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Average margin per MWh (other)

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Average purchased power cost (other)

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Average purchased power costs (other)

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Average realized revenue (other)

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Average revenue (other)

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Average revenue per MWh (other)

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Average supply cost (other)

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Average supply cost per MWh (other)

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BGE DOE smart grid grant received (other)

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BGE retail deliveries from competitive suppliers (other)

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BGE smart grid regulatory asset (other)

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BGE smart meters approved (other)

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CAIDI outage duration (other)

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Capacity prices (other)

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Capital expenditures (other)

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ComEd Peak Load (other)

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ComEd customer choice share (other)

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ComEd distribution formula rate regulatory asset (other)

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ComEd peak load (other)

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ComEd retail deliveries (other)

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ComEd retail deliveries from competitive suppliers (other)

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ComEd smart meters installed (other)

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Commercial paper outstanding (other)

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Common Stock Outstanding (other)

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Common stock outstanding (other)

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Competitive supplier delivery share (other)

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Competitive supplier share (other)

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Competitive supplier share of deliveries (other)

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Cooling degree days (other)

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Cooling degree-day change (other)

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Credit facility commitments (other)

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Customer choice share (other)

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Customer choice share of retail energy (other)

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Customer load share (other)

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Customer satisfaction score (other)

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Deferred income tax liabilities (other)

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Degree days (other)

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Delivered kWh to ARES/PPO customers (other)

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Delivered kWhs to alternative suppliers (other)

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Direct financing lease impairment (other)

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Distribution circuit miles (other)

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Economic hedge ratio (other)

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Effective income tax rate (other)

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Electric Supply Purchased (other)

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Electric retail deliveries (other)

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Electric revenue per MWh (other)

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Electric supply purchased (other)

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Electricity prices (other)

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Emission allowances carried (other)

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Energy hedge ratio (other)

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Energy marketing contract guarantees (other)

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Energy marketing hedge ratio (other)

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Environmental remediation accrual (other)

Environmental remediation reserve (other)

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Equity compensation plan securities (other)

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Expected Generation Hedged (other)

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Expected generation hedged (other)

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Expected return on OPEB plan assets (other)

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Expected return on pension plan assets (other)

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Federal general business credit carryforward (other)

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Federal net operating loss carryforward (other)

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Gas deliveries (other)

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Gas maintenance backlog (other)

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Gas pipeline miles (other)

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Generation average margin (other)

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Generation hedge ratio (other)

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Generation hedged (other)

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Generation hedged percentage (other)

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Generation sources (other)

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Generation supply volume (other)

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Generation total sales (other)

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Goodwill (other)

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Health care cost trend rate (other)

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Heating degree days (other)

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Hedge Ratio (other)

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Hedge ratio (other)

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Hedge ratio for energy marketing portfolio (other)

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Hedged generation (other)

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Hedged generation percentage (other)

Hedging percentage (other)

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Interest coverage ratio (other)

Interest rate swap fair value (other)

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Investment in CENG (other)

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Letters of credit outstanding (other)

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Like-kind exchange penalty assertion (other)

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Like-kind exchange potential cash outflow (other)

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Lines of credit available (other)

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MGP remediation sites (other)

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Manufactured gas plant sites (other)

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NEIL distribution received (other)

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NEIL retrospective premium obligation (other)

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Natural gas deliveries (other)

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Natural gas retail deliveries (other)

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Net cash collateral received (other)

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Net counterparty credit exposure (other)

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Net investment in direct financing leases (other)

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Net mark-to-market energy contract position (other)

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Non-Refueling Outage Days (other)

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Non-nuclear ARO total (other)

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Non-nuclear ARO — BGE (other)

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Non-nuclear ARO — ComEd (other)

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Non-nuclear ARO — Generation (other)

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Non-nuclear ARO — PECO (other)

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Non-refueling outage days (other)

Nuclear Production Cost (other)

Nuclear asset retirement obligation (other)

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Nuclear capacity factor (other)

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Nuclear decommissioning ARO (other)

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Nuclear decommissioning asset retirement obligation (other)

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Nuclear decommissioning trust funds (other)

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Nuclear fleet capacity factor (other)

Nuclear fleet production cost (other)

Nuclear fleet production cost per MWh (other)

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Nuclear fuel assemblies stored on site (other)

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Nuclear generating stations (other)

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Nuclear generating units (other)

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Nuclear insurance NEIL distribution (other)

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Nuclear insurance NEIL retrospective premium (other)

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Nuclear insurance blanket limit (other)

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Nuclear insurance maximum liability per incident (other)

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Nuclear insurance premiums maximum (other)

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Nuclear insurance private liability (other)

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Nuclear insurance property assessment (other)

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Nuclear insurance property limit (other)

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Nuclear insurance property limit excess (other)

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Nuclear insurance replacement power premium (other)

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Nuclear insurance retrospective premium — Price-Anderson (other)

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Nuclear insurance secondary financial protection (other)

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Nuclear insurance terrorism aggregate (other)

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Nuclear insurance terrorism aggregate limit (other)

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Nuclear liability insurance per site (other)

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Nuclear non-refueling outage days (other)

Nuclear outage days (other)

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Nuclear production cost (other)

Nuclear production cost per MWh (other)

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Nuclear production costs (other)

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Nuclear refueling outage days (other)

Nuclear refueling outages (other)

Nuclear spent fuel assemblies (other)

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Nuclear stations with operating licenses (other)

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Nuclear underfunded position (other)

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Nuclear units with renewed licenses (other)

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Nuclear uprate charge (other)

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Nuclear uprate projects in service (other)

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Number of CBAs (other)

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Number of Reportable Segments (other)

OPEB actuarial loss in AOCI (other)

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OPEB actuarial loss in regulatory assets (other)

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OPEB amortization from AOCI in 2014 (other)

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OPEB average remaining service period (other)

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OPEB benefit obligation (other)

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OPEB benefit payments 2014 (other)

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OPEB contributions (other)

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OPEB discount rate (other)

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OPEB net periodic benefit cost (other)

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OPEB plan assets (other)

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OPEB plan assets actual return (other)

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OPEB plan assets fair value (other)

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OPEB plan funded status (other)

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OPEB unfunded status (other)

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Other postretirement benefit obligation (other)

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PECO DOE smart grid grant received (other)

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PECO customer choice share (other)

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PECO peak load (other)

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PECO retail deliveries (other)

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PECO retail deliveries from competitive suppliers (other)

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PECO smart grid spending (other)

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PECO smart meter spending (other)

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PECO smart meters deployed (other)

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Peak load (other)

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Pension actuarial loss in AOCI (other)

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Pension actuarial loss in regulatory assets (other)

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Pension amortization from AOCI in 2014 (other)

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Pension asset return (other)

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Pension average remaining service period (other)

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Pension benefit obligation (other)

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Pension benefit payments 2014 (other)

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Pension contributions (other)

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Pension discount rate (other)

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Pension net periodic benefit cost (other)

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Pension plan assets (other)

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Pension plan assets actual return (other)

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Pension plan assets fair value (other)

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Pension plan funded status (other)

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Pension plan target allocation (other)

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Pension plan unfunded status (other)

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Pension prior service cost in AOCI (other)

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Pension prior service credit in AOCI (other)

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Pension prior service credit in regulatory assets (other)

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Pension regulatory asset for ComEd and BGE (other)

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Pension regulatory liability for PECO (other)

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Pension unfunded status (other)

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Percentage of Expected Generation Hedged (other)

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Percentage of expected generation hedged (other)

Percentage of generation hedged (other)

Percentage of retail customers purchasing from alternative supplier (other)

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Percentage of retail deliveries from alternative supplier (other)

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Performance share awards nonvested (other)

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Planned pension contributions (other)

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Positions identified for elimination (other)

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Postretirement plan unfunded status (other)

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Power purchase commitments (other)

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Power purchase volume (other)

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Price-Anderson liability limit (other)

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Production cost (other)

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Proprietary Trading Physical Volumes (other)

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Proprietary trading physical volumes (other)

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Proprietary trading volume (other)

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Purchased Power Volume (other)

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Purchased power (other)

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Purchased power cost (other)

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Purchased power volume (other)

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Purchased receivables (other)

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Ratio of earnings to fixed charges (other)

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Refueling Outage Days (other)

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Refueling outage days (other)

Restricted stock units nonvested (other)

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Retail deliveries (other)

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Retail electric deliveries (other)

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Retail electricity deliveries (other)

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Retail gas deliveries (other)

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Retail kWh sales growth (other)

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SAIFI outage frequency (other)

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SNF assemblies stored on site (other)

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SNF storage cost reimbursement receivable (other)

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SNF storage cost reimbursements received (other)

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Service Territory Area (other)

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Service Territory Population (other)

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Service territory area (other)

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Severance liability (other)

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Severance positions remaining (other)

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Shares outstanding (other)

Smart meters installed (other)

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Spent Nuclear Fuel (other)

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Spent nuclear fuel assemblies (other)

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Spent nuclear fuel assemblies stored (other)

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Spent nuclear fuel obligation (other)

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State net operating losses and credits (other)

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Stock options outstanding (other)

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Stock-based compensation expense (other)

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Stranded Costs Regulatory Asset (other)

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Stranded cost recovery securitized (other)

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Synthetic fuel credit phase-out (other)

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Total contractual obligations (other)

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Trading volume (other)

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Trading volumes (other)

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Transmission capacity commitments (other)

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Transmission rights commitments (other)

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Treasury shares held (other)

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Unrecognized compensation costs (other)

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Unrecognized tax benefits (other)

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Unrecognized tax benefits — timing only (other)

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Unrecognized tax benefits — would decrease ETR (other)

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Value-at-Risk (other)

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Volume of energy from alternative supplier (other)

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Wholesale purchased power cost per MWh (other)

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Wind project impairment charge (other)

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ZEC prices (other)

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Zion Station cumulative withdrawals (other)

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Zion Station pledged assets (other)

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us-gaap:NumberOfReportableSegments (other)

PECO gas retail sales (production_volume)

Nuclear Stations (properties)

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Generation Capacity (renewable_capacity)

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Revenue, Remaining Performance Obligation, Amount (rpo)

Service Territory Area (square_footage)

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PECO Transmission Circuit Miles (transmission_miles)

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OSHA recordable rate (trir)

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Electric Sales (units_shipped)

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Nuclear capacity factor (utilization_rate)

Human capital disclosures. Workforce totals and demographics are point-in-time. Flow metrics use the year-to-date period for 10-Q and full year for 10-K. Workforce actions (RIFs, restructurings, acquisition-related changes) are listed in the table at the bottom.

Workforce Totals

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Demographics

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Workforce Breakdowns

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HCM Metrics — Point-in-Time

No point-in-time HCM metrics found.

HCM Metrics — Flow (Annual / YTD)

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Workforce Actions

Period EndTypeStatusAffected% WorkforceAnnouncedExpected CompletionGeographySegment / FunctionChargeSourceNote
2026-06-30restructuringin_progress2026-05-01United StatesExelon and Utility Registrants (enterprise-wide)USD 42 (millions)MD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Cost management program primarily representing severance costs; $42M net-of-tax charge in Q2 2026. In May 2026 Exelon announced plans to identify ~$350M of O&M cost savings in 2027. No employee count disclosed.
2026-06-30restructuringannounced2026-052027-12-31United StatesCorporate and Utility RegistrantsUSD 350 (millions)MD&A
f5-10q / Qwen3.6-27B-Q8_0		Announced plans to identify approximately $350 million of operating and maintenance cost savings in 2027. No specific headcount reduction disclosed.
2024-12-31restructuringcompletedUnited StatesExelon CorporateUSD 13 (millions)MD&A
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Represents severance and reorganization costs related to cost management. Pre-tax charge of $13M (net of $4M taxes) included in Adjusted operating earnings reconciliation. Number of employees affected not disclosed.
2024-06-30restructuringin_progressUnited StatesCorporate / Enterprise-wideUSD 9 (millions)MD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Charge of $9M (net of $3M taxes) for both Q2 and YTD 2024 represents severance and reorganization costs related to cost management. No employee count, announcement date, or completion timeline disclosed.
2023-12-31othercompleted2023-11-052023-12-05United States (New Jersey)Atlantic City Electric (ACE)MD&A
f5-10k / MiMo-V2.6-Flash-fp8-HTML		IBEW Local 210 strike from Nov 5 to Dec 5, 2023; no service disruption. Unfavorable net income impact of approximately $31M at Exelon/PHI and $32M at ACE. New CBA ratified Dec 5, 2023.
2022-12-31divestiture_reductioncompleted2021-02-212022-02-01United StatesGeneration (Constellation)discontinued_operations_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Separation of Constellation Energy Corporation completed 2022-02-01; headcount impact not separately disclosed. Separation costs impacting continuing operations were $34M pre-tax in 2022.
2022-03-31divestiture_reductioncompleted2021-02-212022-02-01United StatesGeneration (Constellation)USD 24 (millions)MD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Spin-off of Constellation completed 2022-02-01; $24M pre-tax separation costs in continuing operations for Q1 2022. Employee headcount transferred not disclosed.
2021-12-31divestiture_reductioncompleted2021-02-212022-02-01United StatesGeneration (Constellation Energy Corporation)USD 90 (millions)MD&A
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Separation of Utility Registrants and Generation into two publicly traded companies. Exelon incurred $122M pre-tax transaction costs in 2021 (system-related, third-party advisor, consultant, lawyer, and employee-related severance costs). Separation completed 2022-02-01. Employee headcount impact not disclosed.
2021-12-31acquisition_additioncompleted2021-08-062021-08-06United StatesGeneration — CENG (Calvert Cliffs, Ginna, Nine Mile Point)USD 885 (millions)business_combinations_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Generation purchased EDF's 49.99% equity interest in CENG for net purchase price of $885M. Headcount added through this acquisition not disclosed.
2021-12-31divestiture_reductioncompleted2020-12-082021-03-31United StatesGeneration — Solar Businessbusiness_combinations_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Sale of significant portion of Generation's solar business (360 MW across 600+ sites) to Brookfield Renewable completed 2021-03-31 for $810M purchase price. Headcount impact not disclosed.
2021-12-31divestiture_reductioncompleted2021-04-282021-06-30United StatesGeneration — Albany Green Energy Biomass FacilityUSD 140 (millions)business_combinations_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Sale completed 2021-06-30 for net purchase price of $36M. Pre-tax impairment charge of $140M recorded. Headcount impact not disclosed.
2021-09-30restructuringcompleted2020-08-27IllinoisGeneration (Byron and Dresden Nuclear Plants)USD -94 (millions)MD&A
f5-10q / Qwen3.6-27B-Q8_0		Reversal of $81 million severance benefit costs and $13 million other one-time charges previously recorded in 2020 due to reversal of decision to early retire Byron and Dresden plants following Illinois Clean Energy Law enactment.
2021-09-30othercompleted2021-06-30New YorkGeneration (Albany Green Energy Biomass Facility)USD 140 (millions)MD&A
f5-10q / Qwen3.6-27B-Q8_0		Pre-tax impairment charge of $140 million recorded in Q2 2021 associated with sale of Albany Green Energy biomass facility. Employee count not disclosed.
2021-09-30othercompleted2021-03-31United StatesGeneration (Solar Business)MD&A
f5-10q / Qwen3.6-27B-Q8_0		Sale of significant portion of Generation's solar business completed March 31, 2021. No specific workforce reduction or addition count disclosed.
2021-09-30othercompleted2021-08-06Maryland, New YorkGeneration (CENG Joint Venture)MD&A
f5-10q / Qwen3.6-27B-Q8_0		Generation purchased EDF's 49.99% equity interest in CENG for $885 million. No specific workforce impact disclosed.
2021-06-30restructuringin_progress2020-08-272021-11-30United StatesGeneration — Nuclear (Byron and Dresden stations, Illinois)USD 81 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Severance liability of $81M recorded as of June 30, 2021 for employees impacted by early retirements of Byron (Sept 2021) and Dresden (Nov 2021); final amount depends on employees actually severed. Number of affected employees not disclosed.
2021-06-30restructuringin_progressUnited StatesCorporate / enterprise-wideUSD 4 (millions)MD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Reorganization costs related to cost management programs; $4M after-tax for six months ended June 30, 2021. Employee count not disclosed.
2021-06-30restructuringin_progress2021-02-212022-03-31United StatesCorporate — planned separation of Exelon into two publicly traded companiesUSD 21 (millions)MD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Transaction costs of $28M pre-tax for six months ended June 30, 2021 include employee-related severance costs; $21M after-tax excluded from adjusted operating earnings. Target completion Q1 2022. Employee count not disclosed.
2021-06-30othercompleted2021-04-282021-06-30United StatesGeneration — Albany Green Energy biomass facilityUSD 140 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Pre-tax impairment charge of $140M recorded on agreement to sell biomass facility; sale completed June 30, 2021 for net purchase price of $36M. Associated headcount not disclosed.
2021-06-30othercompleted2021-06-30United StatesGeneration — Solar business (sold to Brookfield Renewable affiliate)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Sale of significant portion of Generation's solar business (360 MW across 600+ sites) completed March 31, 2021 for $810M purchase price. Associated headcount not disclosed.
2021-06-30othercompleted2021-04-012021-06-30United StatesGeneration — CENG joint venture (EDF put option exercise)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		EDF exercised put option to sell 49.99% interest in CENG; NYPSC approval received April 15, 2021; expected to close H2 2021. Purchase price not yet determined. Associated headcount not disclosed.
2021-06-30restructuringin_progress2020-09-012021-09-30IllinoisGenerationUSD 81 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Severance benefit costs for employees impacted by early retirements of Byron and Dresden nuclear plants. Liability of $81 million recorded as of June 30, 2021.
2021-06-30othercompleted732021-06-302021-06-30PennsylvaniaGenerationMD&A
f5-10q / Qwen3.6-27B-Q8_0		Generation ratified CBA with UGSOA covering 73 security officers at Three Mile Island.
2021-06-30othercompleted1,1402021-06-302021-06-30PennsylvaniaPECOMD&A
f5-10q / Qwen3.6-27B-Q8_0		PECO ratified CBA with IBEW Local 614 covering 1,140 operations employees.
2021-06-30othercompleted1852021-06-302021-06-30PennsylvaniaPECOMD&A
f5-10q / Qwen3.6-27B-Q8_0		PECO ratified CBA with IBEW Local 614 covering 185 customer service employees.
2021-03-31restructuringin_progress2020-08-272021-11-30Illinois, United StatesGeneration — Nuclear (Byron and Dresden plants)USD 81 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Severance liability of $81M recorded in 2020 for employees impacted by early retirements of Byron (Sept 2021) and Dresden (Nov 2021); final amount depends on specific employees severed. No employee count disclosed.
2021-03-31restructuringin_progress2020-08-202024-05-31Massachusetts, United StatesGeneration — Fossil (Mystic Units 8 and 9)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Mystic 8 and 9 to cease generation at expiration of cost of service commitment in May 2024; incremental D&A of $20M recorded in Q1 2021. No employee count or severance disclosed.
2021-03-31restructuringin_progress2020-08-272021-11-30IllinoisGeneration (Nuclear)USD 81 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Severance liability of $81 million recorded for employees impacted by early retirements of Byron and Dresden nuclear plants. Byron ceases operations in Sept 2021; Dresden in Nov 2021.
2021-03-31restructuringin_progress2020-08-202024-05-31MassachusettsGeneration (Fossil)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Mystic Units 8 and 9 to permanently cease generation operations at expiration of cost of service commitment in May 2024. No specific severance charge disclosed for Q1 2021.
2021-03-31othercompleted2021-04-012021-04-01PennsylvaniaPECO Energy CompanyMD&A
f5-10q / Qwen3.6-27B-Q8_0		PECO ratified two Collective Bargaining Agreements with IBEW Local 614 covering 1,140 operations employees and 185 customer service employees. CBAs expire in 2026.
2020-12-31divestiture_reductionannounced2020-12-082021-06-30United StatesGeneration — Solar Businessother
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Sale of significant portion of solar business (360 MW across 600+ sites) to Brookfield Renewable affiliate for $810M; expected pre-tax gain of $75-125M; headcount impact not disclosed
2020-12-31plant_closureannounced2020-08-272021-11-30United StatesGeneration — Nuclear (Byron and Dresden)USD 81 (millions)restructuring_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Severance expense of $81M recorded in 2020 for employees impacted by early retirements of Byron (Sept 2021) and Dresden (Nov 2021); final amount depends on employees not redeployed to other nuclear plants
2020-12-31plant_closureannounced2020-08-202024-05-31United StatesGeneration — Nuclear (Mystic Units 8 and 9)restructuring_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Mystic 8 and 9 to cease generation at expiration of cost of service commitment in May 2024; $22M one-time charges recorded in 2020; headcount impact not separately disclosed
2020-12-31otherannounced2021-02-212022-03-31United StatesCorporate — Separation of Utility Registrants and Generationsubsequent_events
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Board approved plan to separate into two publicly traded companies; targeting Q1 2022 completion; headcount impact not disclosed
2020-12-31restructuringcompleted2020-01-012020-12-31GlobalAll SegmentsUSD 59 (millions)MD&A
f5-10k / Qwen3.6-27B-Q8_0		Cost Management Program charges (net of taxes) of $45 million in 2020 and $51 million in 2019. Primarily represents reorganization and severance costs. Employee count not explicitly disclosed.
2020-09-30plant_closurein_progress2020-08-272021-11-30Illinois, United StatesGeneration — Nuclear (Byron and Dresden Generating Stations)USD 81 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Severance expense of $81M recorded in Q3 2020 for employees impacted by early retirements of Byron (Sept 2021) and Dresden (Nov 2021), to the extent not redeployed. Employee count not disclosed.
2020-09-30plant_closurein_progress2020-08-202024-05-31Massachusetts, United StatesGeneration — Fossil (Mystic Units 8 and 9)USD 43 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		One-time charges of $43M related to long-term maintenance contract termination and inventory reserve adjustments upon decision to retire Mystic 8 and 9 at expiration of cost-of-service commitment in May 2024. Employee count not disclosed.
2020-09-30restructuringin_progress2020-08-272021-11-30IllinoisGeneration (Midwest)USD 81 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Announced early retirement of Byron and Dresden nuclear plants. Severance expense recorded for employees impacted who are not redeployed. Employee count not specified.
2020-09-30restructuringin_progress2020-08-202024-05-31MassachusettsGeneration (New England)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Announced early retirement of Mystic Units 8 and 9. One-time charges of $43 million recorded for contract termination and inventory adjustments. Employee count not specified.
2020-09-30othercompleted1222020-06-30IllinoisGenerationMD&A
f5-10q / Qwen3.6-27B-Q8_0		Ratified CBA with SPFPA Local 238 covering 122 security officers at Quad Cities.
2020-09-30othercompleted802020-06-30IllinoisComEdMD&A
f5-10q / Qwen3.6-27B-Q8_0		Extended CBA with IBEW Local 15 covering 80 employees in System Services Group.
2020-09-30othercompleted8572020-06-30Delaware/MarylandDPLMD&A
f5-10q / Qwen3.6-27B-Q8_0		Ratified CBAs with IBEW Locals 1238 and 1307 covering 857 employees.
2020-09-30othercompleted1022020-09-30IllinoisGenerationMD&A
f5-10q / Qwen3.6-27B-Q8_0		Ratified CBA with SEIU Local 1 covering 102 security officers at LaSalle.
2020-06-30othercompleted1222020-06-302020-06-30IllinoisGeneration (Quad Cities)MD&A
f5-10q / Qwen3.6-27B-Q8_0		Generation ratified CBA with SPFPA Local 238 covering 122 security officers at Quad Cities, expiring in 2023.
2020-06-30othercompleted802020-06-302020-06-30IllinoisComEd (System Services Group)MD&A
f5-10q / Qwen3.6-27B-Q8_0		ComEd extended CBA with IBEW Local 15 to 2022, covering 80 employees in System Services Group.
2020-06-30othercompleted8572020-06-302020-06-30Delaware/MarylandDPLMD&A
f5-10q / Qwen3.6-27B-Q8_0		DPL ratified CBAs with IBEW Locals 1238 and 1307, covering 857 employees, expiring in 2024.
2019-12-31restructuringin_progress2019-10-312022-12-31United StatesGenerationMD&A
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Announced approximately $100 million in additional annual cost savings at Generation to be achieved by 2022; no employee count or charge disclosed
2019-12-31restructuringin_progress2018-11-012021-12-31United StatesGeneration and Utility RegistrantsMD&A
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Elimination of approximately $200 million of annual ongoing costs by 2021, primarily at Generation and BSC; approximately $150 million related to Generation with remainder at Utility Registrants; no employee count or charge disclosed
2019-12-31restructuringin_progress2017-11-012020-12-31United StatesGenerationMD&A
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Commitment for $250 million of cost savings, primarily at Generation, to be achieved by 2020; no employee count or charge disclosed
2019-12-31restructuringcompleted2019-10-312022-12-31GenerationGenerationMD&A
f5-10k / Qwen3.6-27B-Q8_0		Exelon announced additional annual cost savings of approximately $100 million at Generation to be achieved by 2022. Specific headcount reduction numbers were not disclosed in this filing.
2019-09-30restructuringannounced2019-10-312022-12-31United StatesGenerationMD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Announced additional annual cost savings of approximately $100 million at Generation to be achieved by 2022; no employee count or severance charge disclosed.
2019-09-30othercompletedUnited StatesMultiple (BSC, ComEd, Generation, BGE, Pepco, Conowingo)MD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Multiple collective bargaining agreements extended or ratified during the quarter: IBEW Local 15 CBAs extended through 2024 (April 2019); BGE Local 410 union contract for ~1,400 employees ratified (June 2019); Generation Byron security officers CBA extended to Dec 31, 2019; Pepco IBEW Local 1900 CBA negotiated to expire 2022; Generation Local 614 CBA extended to March 3, 2020.
2019-06-30othercompleted2019-04-01United StatesBSC, ComEd, GenerationMD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Collective bargaining agreements with IBEW Local 15 covering employees at BSC, ComEd and Generation were extended through 2024 in April 2019.
2019-06-30otherin_progress2019-05-262019-09-07United StatesPepcoMD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		CBA between Pepco and IBEW Local 1900 was scheduled to expire 2019-05-26 but was extended to 2019-09-07.
2019-06-30othercompleted2019-06-23United StatesBGEMD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		BGE union contract for approximately 1,400 employees within Local 410 was ratified on 2019-06-23; terms do not have a material impact on BGE's financial statements.
2019-06-30othercompleted2019-06-23MarylandBaltimore Gas and Electric CompanyMD&A
f5-10q / Qwen3.6-27B-Q8_0		Union contract for 1,400 employees within local 410 was ratified.
2019-06-30otherin_progress2019-04-012024-12-31Illinois, Pennsylvania, New York, Texas, OtherBSC, ComEd, GenerationMD&A
f5-10q / Qwen3.6-27B-Q8_0		CBAs with IBEW Local 15 covering employees at BSC, ComEd and Generation were extended through 2024.
2019-06-30otherin_progress2019-05-262019-09-07District of Columbia, MarylandPepcoMD&A
f5-10q / Qwen3.6-27B-Q8_0		CBA between Pepco and IBEW Local 1900 extended to September 7, 2019.
2018-12-31restructuringin_progress2018-11-012021-12-31United StatesGeneration and BSCMD&A
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Announced elimination of approximately $200 million in annual ongoing costs through initiatives primarily at Generation and BSC by 2021; approximately $150 million expected at Generation. No employee count disclosed.
2018-12-31restructuringcompleted2015-08-012018-12-31United StatesBSC and GenerationMD&A
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Cost management program targeting approximately $400 million in cost savings at BSC and Generation, fully realized in 2018. Approximately 75% of savings related to Generation. No employee count disclosed.
2018-12-31restructuringin_progress2017-11-012020-12-31United StatesGenerationMD&A
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Commitment for an additional $250 million of cost savings, primarily at Generation, to be achieved by 2020. No employee count disclosed.
2018-12-31plant_closurecompleted2018-02-022018-09-17United States - New JerseyGeneration - NuclearMD&A
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Oyster Creek nuclear plant permanently ceased generation operations on September 17, 2018. One-time charges included materials and supplies inventory reserve adjustments, employee-related costs, and CWIP impairments. No employee count disclosed.
2018-12-31plant_closureannounced2017-05-302019-09-30United States - PennsylvaniaGeneration - NuclearMD&A
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Three Mile Island Unit 1 announced to permanently cease generation operations on or about September 30, 2019. Committed to operate through May 2019. No employee count disclosed.
2018-12-31acquisition_additioncompleted2018-04-042018-04-04United States - TexasGeneration - FossilUSD 62 (millions)business_combinations_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Acquisition of Handley Generating Station for $62 million through EGTP Chapter 11 proceedings. No employee count disclosed.
2018-12-31acquisition_additioncompleted2018-10-012018-10-01United States - MassachusettsGeneration - FossilUSD 81 (millions)MD&A
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Acquisition of Everett Marine Terminal for $81 million to ensure continued fuel supply to Mystic Units 8 and 9. No employee count disclosed.
2018-12-31othercompleted2017-11-072018-04-17United States - TexasGeneration - Fossilbusiness_combinations_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		EGTP Chapter 11 bankruptcy finalized April 17, 2018; EGTP assets (other than Handley) transferred to lenders, resulting in deconsolidation. No employee count disclosed.
2018-12-31otherannounced2019-01-232019-01-23United StatesGenerationbusiness_combinations_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Termination of FirstEnergy Solutions asset purchase agreement ($140 million) effective January 22, 2019; refund of escrow deposit and termination fee received. Subsequent event.
2018-12-31restructuringcompleted2015-08-012018-12-31United StatesGeneration and BSCMD&A
f5-10k / Qwen3.6-27B-Q8_0		Cost management program focused on cost savings of approximately $400 million at BSC and Generation, fully realized in 2018.
2018-12-31restructuringin_progress2017-11-012020-12-31United StatesGenerationMD&A
f5-10k / Qwen3.6-27B-Q8_0		Commitment for an additional $250 million of cost savings, primarily at Generation, to be achieved by 2020.
2018-12-31restructuringin_progress2018-11-012021-12-31United StatesGeneration and BSCMD&A
f5-10k / Qwen3.6-27B-Q8_0		Elimination of approximately $200 million of annual ongoing costs through initiatives primarily at Generation and BSC by 2021.
2018-09-30restructuringannounced2018-11-012021-12-31United StatesGeneration and BSCMD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		In November 2018 Exelon announced elimination of approximately $200 million in annual ongoing costs through initiatives primarily at Generation and BSC by 2021; approximately $150 million expected at Generation with the remainder at the Utility Registrants. No employee count disclosed. Prior programs: $400 million savings fully realized in 2018 and an additional $250 million commitment by 2020 announced November 2017.
2018-09-30otherin_progressMarylandBaltimore Gas and Electric CompanyMD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		BGE and IBEW Local 410 negotiating an initial collective bargaining agreement covering approximately 1,394 employees who voted for union representation in January 2017. No agreement finalized as of the filing date.
2018-09-30otherin_progress2018-12-09New JerseyAtlantic City Electric CompanyMD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Two ACE Local 210 contracts expiring October 15, 2018 and December 9, 2018; negotiations underway. Separately, an organizing election for approximately 18 ACE control room System Operators resulted in a favorable outcome for Local 210, but bargaining is deferred pending an NLRB determination on supervisor status.
2018-09-30restructuringin_progress2018-02-022018-09-17New JerseyGenerationMD&A
f5-10q / Qwen3.6-27B-Q8_0		Early retirement of Oyster Creek nuclear plant. Operations ceased Sept 17, 2018. Charges include inventory reserve adjustments, employee-related costs, and CWIP impairments. Specific headcount not disclosed.
2018-09-30restructuringin_progress2017-05-302019-09-30PennsylvaniaGenerationMD&A
f5-10q / Qwen3.6-27B-Q8_0		Early retirement of Three Mile Island (TMI) nuclear plant. Operations to cease Sept 30, 2019. Charges include accelerated depreciation and employee-related costs. Specific headcount not disclosed.
2018-09-30otherannounced2018-03-292022-06-01MassachusettsGenerationMD&A
f5-10q / Qwen3.6-27B-Q8_0		Notification of plan to early retire Mystic Generating Station Units 7, 8, 9 and Jet Unit absent regulatory reforms. Decision deadline extended to Jan 4, 2019. Specific headcount not disclosed.
2018-06-30othercompleted2018-06-012018-07-09United States - New JerseyAtlantic City Electric - system operationsMD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		NLRB election held June 2018 for 18 ACE control room system operators; certified July 9, 2018 recognizing IBEW Local 210. ACE filed Request for Review on July 23, 2018.
2018-06-30otherin_progress2017-01-01United States - MarylandBaltimore Gas and ElectricMD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		January 2017 election resulted in union representation for approximately 1,394 BGE employees; initial collective bargaining agreement with IBEW Local 410 still under negotiation.
2018-06-30restructuringin_progress2018-02-022018-10-31New JerseyGenerationUSD 28 (millions)MD&A
f5-10q / Qwen3.6-27B-Q8_0		Early retirement of Oyster Creek Generating Station. One-time charges in Q1 2018 included materials/supplies reserve adjustments, employee-related costs, and CWIP impairments.
2018-06-30restructuringin_progress2017-05-302019-09-30PennsylvaniaGenerationMD&A
f5-10q / Qwen3.6-27B-Q8_0		Early retirement of Three Mile Island (TMI). Annual incremental non-cash charges recognized in 2018 for accelerated depreciation and amortization.
2018-06-30otherannounced2018-03-292022-06-01New EnglandGenerationMD&A
f5-10q / Qwen3.6-27B-Q8_0		Notification of early retirement of Mystic Generating Station units 7, 8, 9, and Jet unit absent regulatory reforms. No impairment charge required in Q1 2018.
2018-03-31otherin_progress1,3942017-01-01MarylandBGEother
f5-10q / Qwen3.6-27B-Q8_0		Union election at BGE resulted in representation for approximately 1,394 employees. Negotiations for an initial agreement are ongoing.
2017-12-31plant_closurein_progress2017-05-302019-09-30Pennsylvania, United StatesGeneration — Three Mile Island Nuclear StationUSD 77 (millions)restructuring_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		One-time pre-tax charges of $77M in O&M for materials/supplies, employee costs, CWIP impairments; includes $17M severance for management employees (June 2017). Additional $262M pre-tax accelerated depreciation/amortization in 2017. Plant did not clear third consecutive PJM capacity auction.
2017-12-31plant_closureannounced2018-02-022018-10-31New Jersey, United StatesGeneration — Oyster Creek Generating StationUSD 30 (millions)subsequent_events
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Estimated one-time pre-tax charges of $25M–$35M in Q1 2018 for materials/supplies, employee costs, CWIP impairment; cash expenditures of $5M–$10M. Additional 2018 non-cash charges: $110M–$140M accelerated depreciation, $40M accelerated nuclear fuel amortization, up to $5M ARO accretion.
2017-12-31restructuringin_progress2015-08-012018-12-31United StatesBSC and GenerationItem_1_Business
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Multi-year program targeting ~$400M annual cost savings at BSC and Generation; ~60% of run-rate savings achieved by end of 2017, remainder expected in 2018. Additional $250M commitment announced November 2017, primarily at Generation, to be achieved by 2020. Severance liability: $94M at 12/31/2017 (up from $88M at 12/31/2016); $35M severance charges in 2017.
2017-12-31otherin_progress1,3942017-01-31Maryland, United StatesBGEItem_1_Business
f5-10k / MiMo-V2.6-Flash-fp8-HTML		January 2017 election resulted in union representation for 1,394 BGE employees; initial agreement with IBEW Local 410 still under negotiation at filing date, outcome uncertain.
2017-09-30restructuringin_progress5002015-08-012018-12-31United StatesBusiness Services Company (BSC) and Generationrestructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Approximately 250 corporate support positions at BSC and 250 at Generation. Q3 2017 severance charge of $7M; YTD 2017 charge of $6M. Approximately 60% of run-rate savings expected by end of 2017, fully realized in 2018.
2017-09-30restructuringin_progress2017-05-302019-09-30United StatesGeneration — Three Mile Island nuclear facilityUSD 17 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Severance recognized June 2017 for expected management employee separations from TMI retirement decision. Approximately half of employees at the site are covered by a collective bargaining agreement and not eligible under existing plan; union negotiations pending. TMI to cease generation operations on or about September 30, 2019.
2017-09-30othercompleted1,4002017-01-01United States — MarylandBaltimore Gas and Electric Company (BGE)MD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Union election at BGE in January 2017 resulted in union representation for approximately 1,400 employees. BGE and IBEW Local 410 have begun negotiations for an initial agreement; no agreement finalized as of filing date.
2017-09-30restructuringin_progressIllinoisGeneration (Three Mile Island)USD 76 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		One-time charges related to TMI retirement decision including inventory reserves and employee-related costs.
2017-09-30restructuringin_progressIllinoisGeneration (Three Mile Island)USD 149 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		YTD 2017 incremental pre-tax expense for accelerated depreciation and nuclear fuel amortization due to shortened useful life.
2017-09-30restructuringin_progressTexasGeneration (EGTP)USD 40 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Additional pre-tax impairment charge in Q3 2017 reflecting decline in fair value of assets held for sale.
2017-09-30restructuringin_progressTexasGeneration (EGTP)USD 418 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Pre-tax impairment charge recorded in Q2 2017 for assets classified as held for sale.
2017-06-30restructuringin_progress5002015-08-01United StatesBSC (corporate support) and Generationrestructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Cost management program announced August 2015; approximately 250 corporate support positions at BSC and 250 at Generation. Severance charges for six months ended June 30, 2017 were immaterial ($1M reversal at Exelon and Generation).
2017-06-30plant_closurein_progress2017-05-302019-09-30United StatesGeneration — Three Mile Island nuclear facilityUSD 17 (millions)MD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		TMI permanent retirement announced May 30, 2017, effective on or about September 30, 2019. $17M severance recognized in June 2017 for management employees; approximately half of site employees are covered by a collective bargaining agreement and not eligible for severance under existing plan. Union severance terms to be negotiated.
2017-06-30othercompleted1,4002017-01-01United StatesBGEMD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Union election at BGE in January 2017 resulted in union representation for approximately 1,400 employees. BGE and IBEW Local 410 have begun negotiations for an initial agreement; no agreement finalized as of filing date.
2017-06-30acquisition_additioncompleted2017-03-312017-03-31United StatesGeneration — James A. FitzPatrick nuclear generating stationbusiness_combinations_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Acquisition of 838 MW FitzPatrick nuclear station from Entergy for $293M total purchase price. No specific headcount addition disclosed.
2017-06-30divestiture_reductionannounced2017-07-062017-07-06United StatesGeneration — ExGen Renewables Partners (wind and solar)subsequent_events
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Sale of 49% interest in ExGen Renewables Partners LLC (approximately 1,296 MW of wind and solar assets) for $400M. Generation retains managing member control and continues to consolidate. No headcount impact disclosed.
2017-06-30restructuringin_progress2017-05-302019-09-30PennsylvaniaGenerationUSD 71 (millions)MD&A
f5-10q / Qwen3.6-27B-Q8_0		Early retirement of Three Mile Island (TMI). $71 million one-time charges for inventory, employee-related costs, and CWIP impairments. Approximately half of employees are unionized and not eligible for severance under existing plan; terms to be negotiated.
2017-06-30restructuringin_progress2017-06-01IllinoisGenerationUSD 17 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Severance costs of $17 million recognized for expected management employee severances resulting from plant retirements (TMI). Approximately half of employees at this location fall under a collective bargaining union agreement and are not eligible for severance benefits under an existing plan.
2017-06-30othercompleted1,4002017-01-01MarylandBGEMD&A
f5-10q / Qwen3.6-27B-Q8_0		Union election resulted in representation for approximately 1,400 BGE employees. Negotiations for initial agreement with IBEW Local 410 began.
2017-06-30othercompleted2017-04-01IllinoisGenerationMD&A
f5-10q / Qwen3.6-27B-Q8_0		Exelon Nuclear Security ratified CBA with SPFPA Local 238 at Quad Cities to an extension of three years.
2017-06-30othercompleted2017-06-01PennsylvaniaGenerationMD&A
f5-10q / Qwen3.6-27B-Q8_0		Exelon Nuclear Security ratified CBA with UGSOA Local 12 at Limerick to an extension of three years.
2017-03-31restructuringin_progress5002015-08-01United StatesBSC (corporate support) and Generationrestructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Approximately 250 corporate support positions at BSC and 250 at Generation. Severance charges for Q1 2017 were $1 million (Exelon) vs $17 million in Q1 2016. Program announced August 2015; no expected completion date disclosed.
2017-03-31othercompleted1,4002017-01-01United States (Maryland)BGEMD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Union election at BGE in January 2017 resulted in IBEW Local 410 representation for approximately 1,400 employees. Initial agreement negotiations had not concluded as of filing date.
2017-03-31othercompleted1,4002017-01-01MarylandBaltimore Gas and Electric CompanyMD&A
f5-10q / Qwen3.6-27B-Q8_0		Union election resulted in representation for approximately 1,400 employees; negotiations for initial agreement began.
2017-03-31othercompleted2017-04-01IllinoisExelon Nuclear SecurityMD&A
f5-10q / Qwen3.6-27B-Q8_0		Collective bargaining agreement ratified with SPFPA Local 238 at Quad Cities for a three-year extension.
2016-12-31restructuringin_progress5002015-08-01United StatesBSC and GenerationUSD 23 (millions)restructuring_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Program announced August 2015 to eliminate approximately 500 positions (250 at BSC, 250 at Generation). Severance charge of $23M recorded at Exelon for FY2016; $18M of that allocated to Generation. Cash payments continue through program completion.
2016-12-31acquisition_additioncompleted2016-03-232016-03-23United StatesPHI (Pepco, DPL, ACE)USD 57 (millions)business_combinations_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		PHI merger closed 2016-03-23. Severance accrual recorded for anticipated post-merger position reductions; $57M charge at Exelon and $9M at Generation for FY2016. Cash payments began May 2016 and continue through 2020. Headcount added through acquisition not separately disclosed.
2016-12-31othercompleted2016-12-072016-12-31United StatesGeneration — Clinton and Quad Cities nuclear plantsUSD 44 (millions)restructuring_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Reversal of $44M severance benefit costs previously recorded for expected employee separations tied to the June 2016 early retirement decision for Clinton and Quad Cities. Reversed upon enactment of Illinois FEJA on 2016-12-07, which reversed the early retirement decision.
2016-12-31acquisition_additioncompleted2016-09-012016-09-01United StatesGeneration — ConEdison Solutions retail businessbusiness_combinations_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Acquisition of competitive retail electric and natural gas business of ConEdison Solutions for $257M purchase price. Headcount added through acquisition not disclosed.
2016-12-31restructuringcompleted5002015-08-01United StatesGeneration and BSCUSD 23 (millions)restructuring_footnote
f5-10k / Qwen3.6-27B-Q8_0		Cost management program announced in August 2015 focused on cost savings at BSC and Generation, including elimination of approximately 500 positions. $23 million in severance costs recorded in 2016.
2016-12-31restructuringcompleted2016-03-232020-12-31United StatesPHI and Exelon CorporateUSD 57 (millions)restructuring_footnote
f5-10k / Qwen3.6-27B-Q8_0		Severance accrual for anticipated employee position reductions resulting from post-merger integration of PHI. Cash payments began in May 2016 and continue through 2020. $57 million in severance costs recorded in 2016.
2016-12-31acquisition_additioncompleted2016-03-23United StatesPHI (Pepco, DPL, ACE)business_combinations_footnote
f5-10k / Qwen3.6-27B-Q8_0		Exelon completed merger with Pepco Holdings, Inc. on March 23, 2016. Headcount added not explicitly quantified in total, but segment breakdowns reflect new employees.
2016-12-31acquisition_additioncompleted2016-09-01United StatesGenerationbusiness_combinations_footnote
f5-10k / Qwen3.6-27B-Q8_0		Generation acquired competitive retail electric and natural gas business activities of ConEdison Solutions on September 1, 2016.
2016-09-30restructuringin_progress5002015-08-01United StatesCorporate support (BSC) and GenerationUSD 18 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Cost management program announced Aug 2015; ~250 BSC and ~250 Generation positions. YTD severance charge $18M at Exelon. Severance liability balance $132M at 2016-09-30.
2016-09-30restructuringin_progress2016-03-232020-12-31United StatesPHI merger integration (Pepco, DPL, ACE, PHI corporate)USD 55 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Post-merger integration severance accrual; cash payments began May 2016 through 2020. YTD charge $55M at Exelon. Specific headcount not disclosed.
2016-09-30restructuringin_progress2016-06-022018-06-01United StatesGeneration — Clinton and Quad Cities nuclear plantsUSD 44 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Early retirement of Clinton (June 1, 2017) and Quad Cities (June 1, 2018). YTD severance charge $44M. Specific affected headcount not disclosed; final amount depends on employees severed vs. redeployed.
2016-09-30othercompleted2016-07-012022-09-30United StatesExelon BSC and ComEdMD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Collective bargaining agreement with IBEW Local 15 extended three years to 2022-09-30.
2016-09-30othercompleted2016-07-012022-04-30United StatesGeneration — five Midwest nuclear plantsMD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		CBA with IBEW Local 15 extended three years to 2022-04-30.
2016-09-30othercompleted2016-07-012023-12-15United StatesGeneration — Clinton nuclear plantMD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		CBA with IBEW Local 51 extended three years to 2023-12-15.
2016-09-30othercompleted2016-07-01United StatesGeneration — Oyster Creek nuclear plantMD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		CBA with UGSOA Local 17 ratified for five-year extension.
2016-09-30othercompleted2016-07-01United StatesGeneration — Exelon PowerMD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		CBA with IBEW Local 614 ratified for three-year extension.
2016-09-30restructuringin_progress2016-06-02IllinoisGeneration (Nuclear)USD 146 (millions)MD&A
f5-10q / Qwen3.6-27B-Q8_0		Announced shutdown of Clinton and Quad Cities nuclear plants. One-time charges of $146 million recorded for materials, supplies inventory reserve adjustments, employee-related costs, and CWIP impairments.
2016-09-30restructuringin_progress5002015-08-01United StatesGeneration and Business ServicesUSD 18 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Cost management program eliminating approximately 500 positions (250 corporate support, 250 Generation). $18 million severance recorded YTD 2016.
2016-09-30restructuringin_progress2016-03-23United StatesCorporate and UtilitiesUSD 55 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		PHI Merger related severance costs. $55 million recorded YTD 2016 across Exelon, Generation, and PHI entities.
2016-06-30acquisition_additioncompleted5,1742016-03-232016-03-23United StatesMultiple — PHI utility subsidiaries (Pepco, DPL, ACE)MD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Exelon added 5,174 employees through the PHI merger; 2,725 covered by CBAs. PHI utility subsidiaries have five CBAs with four local unions, extended through dates ranging from October 2018 to June 2020.
2016-06-30restructuringin_progress5002015-08-012018-12-31United StatesBSC (corporate support) and GenerationUSD 17 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Approximately 250 corporate support positions at BSC and 250 at Generation. $17M severance recorded in Q1 2016; additional Q2 charges immaterial. Final charge depends on specific employees severed.
2016-06-30plant_closurein_progress2016-06-022018-06-01United States (Illinois)Generation — Clinton and Quad Cities nuclear plantsUSD 46 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Clinton to shut down 2017-06-01, Quad Cities 2018-06-01. $46M severance recognized June 2016 for impacted union and non-union employees not redeployed. Additional $141M one-time O&M charges and $110M incremental pre-tax non-cash expense in Q2 2016.
2016-06-30restructuringin_progress2016-03-232020-12-31United StatesPost-merger integration across PHI entitiesUSD 55 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Severance accrual for anticipated post-merger position reductions; $55M recorded at Exelon for six months ended 2016-06-30. Cash payments began May 2016 and continue through 2020. Specific headcount not disclosed.
2016-06-30acquisition_additioncompleted5,1742016-03-232016-03-23United StatesAll SegmentsMD&A
f5-10q / Qwen3.6-27B-Q8_0		Exelon added 5,174 total employees from its merger with PHI and its subsidiaries.
2016-06-30restructuringin_progress2016-06-02IllinoisGenerationUSD 46 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Severance benefit costs of $46 million recognized related to expected employee severances resulting from the Clinton and Quad Cities plant retirements. Final amount depends on specific employees severed.
2016-06-30restructuringin_progress5002015-08-01United StatesGeneration and Business Services CompanyUSD 17 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Cost management program focused on cost savings at BSC and Generation, including the elimination of approximately 500 positions. $17 million severance benefit costs recorded in Q1 2016.
2016-06-30restructuringin_progress2016-03-232020-12-31United StatesPHI and SubsidiariesUSD 55 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Severance accrual for anticipated employee position reductions as a result of post-merger integration. Cash payments began in May 2016 and will continue through 2020. $55 million recognized in six months ended June 30, 2016.
2016-03-31acquisition_additioncompleted5,1742016-03-232016-03-23United StatesPepco, DPL, ACE and PHI corporateMD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		5,174 employees added via PHI merger; 2,725 covered by CBAs. PHI utility subsidiaries have five CBAs with four local unions extended through Oct 2018–Jun 2020.
2016-03-31restructuringin_progress5002015-08-012018-12-31United StatesBSC corporate support and GenerationUSD 17 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Cost management program announced Aug 2015; ~250 BSC corporate support positions and ~250 Generation positions. $17M severance charge recorded Q1 2016 upon senior management approval. Cash payments begin May 2016 through 2020.
2016-03-31restructuringin_progress2016-03-232020-12-31United StatesExelon, Generation, ComEd, PECO, BGE, PHI, Pepco, DPL, ACEUSD 52 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		PHI merger-related severance accrual for anticipated post-merger integration position reductions. $52M charge at Exelon (includes $10M Generation, $2M ComEd, $1M PECO, $1M BGE, $37M PHI, $18M Pepco, $11M DPL, $8M ACE). Cash payments begin May 2016 through 2020.
2016-03-31acquisition_additioncompleted5,1742016-03-232016-03-23United StatesAll SegmentsMD&A
f5-10q / Qwen3.6-27B-Q8_0		Exelon added 5,174 total employees from its merger with PHI and its subsidiaries.
2016-03-31restructuringin_progress5002015-08-01United StatesGeneration and Business ServicesUSD 17 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Cost management program announced in August 2015 involving elimination of approximately 500 positions (250 in BSC, 250 in Generation). $17 million severance recorded in Q1 2016.
2016-03-31restructuringin_progress2016-03-23United StatesPHI and SubsidiariesUSD 52 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Severance accrual for anticipated employee position reductions as a result of post-merger integration of PHI. Employee count not explicitly disclosed, but $52 million charge recorded.
2015-12-31acquisition_additioncompleted2014-11-012014-11-01United StatesGeneration — Competitive retail electric and natural gasbusiness_combinations_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Acquisition of Integrys Energy Services, Inc. completed November 1, 2014; headcount added not separately disclosed. Purchase price $332 million.
2015-12-31divestiture_reductioncompleted2014-12-312015-01-21United StatesGeneration — Generating assetsbusiness_combinations_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Cumulative asset divestitures with total pre-tax proceeds of approximately $1.8 billion; headcount removed not separately disclosed. Includes Quail Run sale on January 21, 2015.
2015-12-31restructuringin_progressUnited StatesExelon — PHI merger integrationUSD 700 (millions)MD&A
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Estimated total PHI acquisition and integration costs of ~$700 million; ~$300 million incurred through December 31, 2015. Headcount impact not disclosed. Includes ~$60 million expected to be capitalized to PP&E.
2015-09-30othercompletedUnited StatesGeneration — Nuclear Operations (Clinton, Braidwood, Byron, Three Mile Island, Mystic)MD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Multiple collective bargaining agreements ratified during 2015: IBEW at Clinton through 2021; security officer unions at Braidwood, Byron, and Three Mile Island through 2018, 2019, and 2021; two union contracts at Mystic 7 and Mystic 8/9 through 2021. No employee counts disclosed.
2015-09-30othercompleted492017-12-31United StatesComEd — Distribution Testing TechniciansMD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		First contract ratified for 49 ComEd Distribution Testing Technicians represented by IBEW Local 15. After a two-year transition ending 2017-12-31, the group will cease to exist and duties absorbed by existing represented work groups.
2015-09-30restructuringin_progressUnited StatesCorporate and GenerationUSD 18 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Exelon recorded $18 million in severance costs for the nine months ended Sept 30, 2015, primarily related to ongoing severance benefit plans. No specific employee count is disclosed.
2015-06-30restructuringin_progressGenerationUSD 17 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Ongoing severance plan costs recorded in Operating and maintenance expense for the six months ended June 30, 2015. Employee count not disclosed.
2015-06-30othercompletedGenerationMD&A
f5-10q / Qwen3.6-27B-Q8_0		Successfully ratified collective bargaining agreements with Security Officer unions at Clinton, Braidwood, and Three Mile Island, and union contracts at Mystic 7 and Mystic 8, 9.
2015-03-31othercompleted2015-03-31United StatesGeneration — Nuclear Operations (Clinton, Braidwood, Mystic)MD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Generation ratified collective bargaining agreements with Security Officer unions at Clinton (through 2021) and Braidwood (through 2018); two union contracts at Mystic 7 and Mystic 8,9 negotiated and ratified through 2021. No employee counts disclosed.
2015-03-31otherin_progressUnited StatesExelon / Generation — ongoing severance planUSD 20 (millions)other
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Ongoing severance plan charges of $20 million recorded in Q1 2015 (vs $4 million in Q1 2014) at Exelon/Generation. Filer states severance liability balances are not material; no employee counts disclosed.
2015-03-31restructuringin_progressUSD 20 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Ongoing severance plan charges recorded in Operating and maintenance expense. Employee count not disclosed.
2015-03-31acquisition_additioncompleted2014-11-01Generationbusiness_combinations_footnote
f5-10q / Qwen3.6-27B-Q8_0		Acquisition of Integrys Energy Group, Inc. competitive retail electric and natural gas business activities. Headcount not disclosed.
2014-12-31restructuringin_progress2014-04-012015-12-31United StatesGeneration / CENG integrationUSD 3 (millions)restructuring_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Severance liability of $19M recorded upon CENG consolidation April 1, 2014; $3M charge in 2014; estimated total payments ~$24M; substantially all cash payments expected by end of 2015
2014-12-31restructuringin_progress2012-03-122016-12-31United StatesCorporate and Generation support positionsrestructuring_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Multi-year program from 2012 Constellation merger; $12M liability balance at December 31, 2014; substantially all cash payments expected by end of 2016; 2014 charge not material
2014-12-31otherin_progressUnited StatesAll segmentsUSD 7 (millions)restructuring_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Ongoing severance benefits for normal-course terminations; $7M charge in 2014; liability balance not material
2014-12-31divestiture_reductioncompletedUnited StatesGeneration — generating stationsdiscontinued_operations_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Six generating stations sold or agreed for divestiture during 2014 (Fore River, West Valley, Keystone, Conemaugh, Safe Harbor, Quail Run); ~$1.8B pre-tax proceeds; headcount not disclosed
2014-12-31acquisition_additioncompleted2014-11-012014-11-01United StatesGeneration — retail electric and natural gas businessUSD 332 (millions)business_combinations_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Acquired Integrys Energy Services for $332M purchase price; headcount added not disclosed; IES contributed $386M revenue and $(42)M net loss Nov 1–Dec 31, 2014
2014-12-31acquisition_additioncompleted2014-11-012014-11-01United StatesGenerationUSD 332 (millions)Item 1. Business
f5-10k / Qwen3.6-27B-Q8_0		Generation acquired competitive retail electric and natural gas business activities of Integrys Energy Group, Inc. Employee count not explicitly disclosed in acquisition summary.
2014-12-31restructuringcompleted2014-12-312014-12-31United StatesExelonUSD 105 (millions)MD&A
f5-10k / Qwen3.6-27B-Q8_0		Pre-tax expense of $105 million recorded at Generation for merger integration and acquisition costs, including employee-related expenses. Specific headcount affected not disclosed.
2014-12-31restructuringcompleted2014-12-312014-12-31United StatesExelon CorporateUSD 271 (millions)MD&A
f5-10k / Qwen3.6-27B-Q8_0		Pre-tax expense of $271 million recorded at Exelon Corporate for merger integration and acquisition costs, including employee-related expenses. Specific headcount affected not disclosed.
2014-09-30restructuringin_progress2013-12-312015-12-31United StatesCENG corporate and support positionsUSD 27 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Estimated total severance payments ~$27M; $16M liability balance at 2014-09-30. No employee count disclosed. Substantially all cash payments expected by end of 2015.
2014-09-30restructuringin_progress2012-03-122016-12-31United StatesCorporate and Generation support positionsrestructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Severance liability balance $17M at 2014-09-30 (down from $53M at 2013-12-31). No employee count disclosed. Substantially all cash payments expected by end of 2016.
2014-09-30acquisition_additioncompleted2014-04-012014-04-01United StatesGeneration (CENG nuclear fleet)business_combinations_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		CENG consolidated effective 2014-04-01 via Nuclear Operating Services Agreement. No employee headcount added disclosed. Exelon assumed sponsorship of CENG pension/OPEB plans on 2014-07-14.
2014-09-30othercompleted2014-03-312019-09-30United StatesComEd, BSC, and Generation (IBEW Local 15)other
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Two CBAs with IBEW Local 15 ratified 2014-03-31 covering approximately 5,250 Exelon employees. ComEd/BSC CBA extends through 2019-09-30; Generation CBA through 2019-04-30.
2014-09-30restructuringin_progress2014-04-012015-12-31Corporate and support positions at CENGUSD 16 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Integration of CENG. Estimated total severance payments approx $27 million. Balance at Sept 30, 2014 was $16 million. Substantially all payments expected by end of 2015.
2014-09-30restructuringin_progress2012-03-122016-12-31Corporate and Generation support positionsUSD 22 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Constellation Merger-Related Severance. Balance at Sept 30, 2014 was $22 million ($17M Exelon, $5M Generation). Substantially all payments expected by end of 2016.
2014-06-30restructuringin_progress2013-12-312014-12-31United StatesExelon Generation / CENG corporate and support positionsUSD 27 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Estimated total severance payments ~$27M; liability balance $20M at 6/30/14; no employee count disclosed. Primarily corporate and support positions at CENG.
2014-06-30restructuringin_progress2012-03-122016-12-31United StatesExelon Corporate and Generation supportrestructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Severance liability balance $33M at 6/30/14 (Exelon total); expense not material for the period. Substantially all cash payments expected by end of 2016. No employee count disclosed.
2014-06-30restructuringin_progress2013-10-012014-12-31Corporate and support positions at CENGUSD 27 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		CENG Integration-Related Severance. Accrual recorded in Q4 2013. Estimated total payments approx $27 million. Substantially all cash payments expected by end of 2014.
2014-06-30restructuringin_progress2012-03-122016-12-31Corporate and Generation support positionsrestructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Constellation Merger-Related Severance. Accrual recorded upon closing of merger. Substantially all cash payments expected by end of 2016. Expense recognized in Q2 2014 not material.
2014-03-31othercompleted5,2502014-03-31United StatesComEd, BSC, and GenerationMD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Two collective bargaining agreements with IBEW Local 15 ratified on March 31, 2014, covering approximately 5,250 Exelon employees. One CBA (ComEd and BSC) extends through September 30, 2019; the other (Generation) extends through April 30, 2019.
2014-03-31acquisition_additionannounced2014-04-292015-06-30United StatesCorporate / Utility Holdingssubsequent_events
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Exelon signed an all-cash merger agreement with Pepco Holdings, Inc. on April 29, 2014 at $27.25 per PHI share. No employee headcount impact disclosed. Expected close in first half of 2015, subject to regulatory approvals.
2014-03-31restructuringin_progress2016-12-31Corporate and Generation supportUSD 14 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Merger-related severance accrual for anticipated employee position reductions. Expense recognized for Q1 2014 was $14 million. Substantially all cash payments expected by end of 2016.
2013-12-31restructuringin_progress2012-03-12United StatesCorporate and Generation support positionsUSD 6 (millions)restructuring_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Merger-related severance expense for FY2013 was $6 million at Exelon and $6 million at Generation; no merger-related severance at ComEd, PECO, or BGE in 2013. Merger-related severance liability decreased from $111M to $53M during 2013 with $64M in payments. Employee counts not disclosed.
2013-12-31restructuringin_progressUnited StatesOngoing severance plan — all business unitsUSD 18 (millions)restructuring_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Ongoing severance plan charges for FY2013: Exelon $18M, Generation $16M, ComEd $2M, PECO $0M, BGE $0M. Not related to the Constellation merger.
2013-12-31restructuringcompleted2012-03-122013-12-31United StatesCorporate and Generation SupportUSD 142 (millions)MD&A
f5-10k / Qwen3.6-27B-Q8_0		Merger-related severance and integration costs incurred in 2013 following the 2012 Constellation merger. Employee-related costs were $58M and other costs $84M. Specific headcount reduction numbers for 2013 activity are not explicitly disclosed, only financial charges.
2013-12-31restructuringin_progress One Time Termination BenefitsUSD 3,000,000 (absolute)restructuring_footnote
f5-10k / no-ai-xblr
2013-12-31restructuringin_progress Exelon Generation Co L L C / One Time Termination BenefitsUSD 1,000,000 (absolute)restructuring_footnote
f5-10k / no-ai-xblr
2013-09-30restructuringin_progress2012-03-122016-12-31United StatesCorporate and Generation support positionsUSD 6 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Post-Constellation merger integration severance. Exelon severance expense of $6M for nine months ended 2013-09-30; severance liability balance of $65M at 2013-09-30. Cash payments expected substantially complete by end of 2016. Number of employees affected not disclosed.
2013-09-30restructuringin_progress2012-03-122016-12-31United StatesGenerationUSD 6 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Post-merger integration severance at Generation. Severance expense of $6M for nine months ended 2013-09-30 (of which $5M billed by BSC through intercompany allocations). Severance liability balance of $14M at 2013-09-30. Number of employees affected not disclosed.
2013-09-30restructuringin_progress2012-03-122016-12-31United StatesComEdrestructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Post-merger integration severance at ComEd. Severance liability balance of $1M at 2013-09-30. No severance expense recorded for post-merger integration in three or nine months ended 2013-09-30. Number of employees affected not disclosed.
2013-09-30restructuringin_progress2012-03-122016-12-31United StatesBGErestructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Post-merger integration severance at BGE. Severance liability balance of $7M at 2013-09-30. No severance expense recorded for post-merger integration in three or nine months ended 2013-09-30. Number of employees affected not disclosed.
2013-09-30restructuringin_progress2012-03-122016-12-31United StatesPECOrestructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Post-merger integration severance at PECO. Severance liability balance of $0M at 2013-09-30. No severance expense recorded for post-merger integration in three or nine months ended 2013-09-30. Number of employees affected not disclosed.
2013-09-30restructuringin_progress2012-03-12United StatesCorporate and Generation SupportUSD 3 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Severance expense for Exelon related to post-merger integration staffing reductions. Employee count not disclosed.
2013-09-30restructuringin_progress2012-03-12United StatesGeneration SupportUSD 3 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Severance expense for Generation related to post-merger integration staffing reductions. Employee count not disclosed.
2013-09-30restructuringin_progress2012-03-12United StatesCorporate and Generation SupportUSD 6 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		YTD severance expense for Exelon related to post-merger integration staffing reductions. Employee count not disclosed.
2013-09-30restructuringin_progress2012-03-12United StatesGeneration SupportUSD 6 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		YTD severance expense for Generation related to post-merger integration staffing reductions. Employee count not disclosed.
2013-06-30restructuringin_progress2012-03-122016-12-31United StatesCorporate and Generation support positionsUSD 3 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Post-Constellation merger integration severance program. No severance expense recognized in Q2 2013; $3M recognized YTD at Exelon and Generation. Severance liability balances at June 30, 2013: Exelon $77M, Generation $20M, ComEd $1M, BGE $8M. Substantially all cash payments expected by end of 2016. No employee headcount disclosed.
2013-06-30restructuringin_progress2012-03-12United StatesCorporate and Generation SupportUSD 3 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Severance expense associated with post-merger integration for the six months ended June 30, 2013. Employee count not disclosed.
2013-06-30restructuringin_progress2012-03-12United StatesCorporateUSD 3 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Severance expense associated with post-merger integration for Exelon for the six months ended June 30, 2013. Employee count not disclosed.
2013-03-31restructuringin_progress2012-03-12United StatesCorporate and Generation support positionsUSD 3 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Merger-related severance program from Constellation integration. Q1 2013 severance charges: Exelon $2M, Generation $2M, others $0. Total severance benefits incl. stock comp: Exelon $3M, Generation $3M. Severance liability balances at 3/31/13: Exelon $92M, Generation $25M, ComEd $1M, PECO $0, BGE $9M. Filing states estimated costs after 3/31/13 are not material. No employee count disclosed.
2013-03-31restructuringin_progress2012-03-12United StatesMerger integration and corporateUSD 21 (millions)MD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Q1 2013 merger/integration costs by registrant: Generation $23M, Exelon $21M, PECO $3M, BGE $(6)M (benefit from regulatory asset), ComEd $0. Exelon projects approximately $165M additional merger-related expenses, primarily in 2013. No employee count disclosed.
2013-03-31restructuringcompleted2013-01-012013-03-31United StatesGeneration — nuclear uprate projectsUSD 21 (millions)MD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Generation cancelled certain nuclear uprate projects in Q1 2013 due to cost overruns and low gas prices; recorded ~$21M O&M expense to reverse previously capitalized costs. No employee count disclosed; project cancellation rather than explicit RIF.
2013-03-31restructuringin_progress2016-12-31United StatesCorporate and Generation supportUSD 3 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Post-merger integration severance plan. Cash payments expected to be substantially complete by end of 2016. Employee count not disclosed.
2012-12-31acquisition_additioncompleted2012-03-122012-03-12United StatesGeneration, BGE, Corporatebusiness_combinations_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Constellation merger completed March 12, 2012; headcount added not separately disclosed
2012-12-31restructuringin_progress2012-03-122016-12-31United StatesCorporate and Generation support positionsUSD 138 (millions)restructuring_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Post-merger integration severance; $138M total benefits recognized through Dec 31, 2012; $111M liability remaining; substantially all cash payments expected by end of 2016; individual employee count not disclosed
2012-12-31divestiture_reductioncompleted2012-08-082012-11-30United StatesGeneration — Maryland clean coal stations (Brandon Shores, H.A. Wagner, C.P. Crane)USD 272 (millions)business_combinations_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Sale of three Maryland generating stations (2,648 MW) to Raven Power Holdings; pre-tax loss of $272M; headcount transferred not disclosed
2012-12-31plant_closurecompleted2012-10-312013-01-01United StatesGeneration — Schuylkill Generating Station Unit 1 (166 MW peaking oil unit)restructuring_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Retired January 1, 2013; no material impact on results disclosed; headcount not disclosed
2012-12-31plant_closureannounced2012-10-312014-06-01United StatesGeneration — Riverside Generating Station Unit 6 (115 MW peaking gas/kerosene unit)restructuring_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		PJM notified no reliability issues; final retirement date to be determined in Q2 2013; headcount not disclosed
2012-12-31restructuringcompleted2012-03-122016-12-31United StatesCorporate and Generation SupportUSD 138 (millions)restructuring_footnote
f5-10k / Qwen3.6-27B-Q8_0		Severance accrual for anticipated employee position reductions resulting from post-merger integration with Constellation. Majority are corporate and Generation support positions. Substantially all cash payments expected by end of 2016. Employee count not explicitly disclosed, only charge amount.
2012-12-31acquisition_additioncompleted2012-03-122012-03-12United StatesGeneration and BGEbusiness_combinations_footnote
f5-10k / Qwen3.6-27B-Q8_0		Merger with Constellation Energy Group, Inc. completed March 12, 2012. Added BGE and Generation assets. Specific headcount added not explicitly disclosed in the text provided, but total employee count increased significantly.
2012-09-30acquisition_additioncompleted2012-03-122012-03-12United StatesMultiple (Generation, ComEd, PECO, BGE, Exelon Corporate)business_combinations_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Exelon completed merger with Constellation on 2012-03-12; Constellation employees integrated into Exelon. No specific headcount added disclosed.
2012-09-30restructuringin_progress2012-03-122016-12-31United StatesCorporate and Generation support positionsUSD 130 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Post-merger integration severance expense of $130M through 2012-09-30 (Generation $76M, ComEd $18M, PECO $8M, BGE $19M). Severance liability at 2012-09-30: Exelon $120M, Generation $34M, ComEd $2M, BGE $11M. Cash payments began Q2 2012 and continue through 2016. No employee count disclosed.
2012-09-30restructuringin_progress2012-03-122016-12-31United StatesGenerationUSD 68 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Generation severance charges of $68M for nine months ended 2012-09-30; includes $40M billed by BSC through intercompany allocations. Severance liability at 2012-09-30: $34M.
2012-09-30restructuringin_progress2012-03-122016-12-31United StatesComEdUSD 16 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		ComEd severance charges of $16M for nine months ended 2012-09-30. ComEd established a regulatory asset of $18M for severance benefits costs, expected to be recovered over five years. Severance liability at 2012-09-30: $2M.
2012-09-30restructuringin_progress2012-03-122016-12-31United StatesPECOUSD 8 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		PECO severance charges of $8M for nine months ended 2012-09-30. Severance liability at 2012-09-30: $0.
2012-09-30restructuringin_progress2012-03-122016-12-31United StatesBGEUSD 18 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		BGE severance charges of $18M for nine months ended 2012-09-30. BGE established a regulatory asset of $19M for severance benefits costs, expected to be recovered over five years. Severance liability at 2012-09-30: $11M.
2012-09-30divestiture_reductionin_progress2012-08-082012-12-31Maryland, United StatesGeneration — Brandon Shores, H.A. Wagner, and C.P. Crane generating stationsUSD 278 (millions)business_combinations_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Sale of three Maryland generating stations (2,648 MW) to Raven Power Holdings LLC required by merger regulatory approvals. $278M pre-tax impairment recorded in Q3 2012. No employee count disclosed for divested workforce.
2012-09-30restructuringin_progress2012-03-122016-12-31United StatesCorporate and Generation SupportUSD 130 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Post-merger integration severance accrual. Cash payments expected through 2016. Employee count not disclosed.
2012-06-30restructuringin_progress2012-03-122016-12-31United StatesCorporate and Generation support positionsUSD 121 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Post-Constellation merger integration restructuring. Estimated total severance cost of $121M for Exelon, comprising $72M Generation, $16M ComEd, $7M PECO, $18M BGE. $83M charge recorded March 2012; additional $36M in Q2 2012. Cash payments began Q2 2012 and expected through 2016. No employee headcount disclosed.
2012-06-30plant_closurecompleted2009-01-012012-05-31United StatesGeneration — Eddystone Generating Station Unit 2other
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Eddystone Unit 2 retired May 31, 2012 after operating under a reliability-must-run agreement from June 1, 2011. Severance obligation for Cromby and Eddystone retirements was $5M at June 30, 2012 (down from $7M at Dec 31, 2011). No employee headcount disclosed.
2012-06-30acquisition_additioncompleted2012-03-122012-03-12United StatesExelon Corporation — Constellation Energy and BGEbusiness_combinations_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Constellation merger completed March 12, 2012. Total purchase price $7,365M. No employee headcount added through the acquisition is disclosed in this filing.
2012-06-30restructuringin_progress2012-03-12United StatesCorporate and Generation SupportUSD 121 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Exelon recorded a pre-tax charge of $83 million in March 2012 and an additional $36 million in Q2 2012 for merger-related job reductions. Total estimated severance costs are $121 million, including $72 million for Generation, $16 million for ComEd, $7 million for PECO, and $18 million for BGE. Specific employee counts were not disclosed.
2012-03-31restructuringin_progress2012-03-122014-12-31United StatesCorporate and Generation support positionsUSD 160 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Post-merger integration severance plan. Total severance benefits obligations at 2012-03-31: Exelon $83M, Generation $45M, ComEd $11M, PECO $5M, BGE $16M. Severance charges recorded in Q1 2012: Exelon $67M, Generation $35M, ComEd $9M, PECO $3M, BGE $14M. Cash payments begin Q2 2012 through 2014. Number of positions not disclosed.
2012-03-31acquisition_additioncompleted2012-03-122012-03-12United StatesConstellation Energy customer supply and generation businesses; BGEbusiness_combinations_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Constellation merged into Exelon on 2012-03-12. Headcount added through acquisition not disclosed. BGE acquired as subsidiary; BGE activity included in Exelon from 2012-03-12 through 2012-03-31.
2012-03-31restructuringin_progress2012-03-122014-12-31United StatesExelon, Generation, ComEd, PECO, BGE — merger and integrationUSD 472 (millions)MD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Total pre-tax merger and integration costs for Q1 2012: Exelon $472M, Generation $110M, ComEd $2M, PECO $7M, BGE $140M. Includes transaction, Maryland commitments, employee-related, and other costs. Severance charges are a component of these totals. Exelon projects approximately $400M additional merger-related costs primarily in 2012-2013.
2012-03-31restructuringin_progress2012-03-122014-12-31United StatesCorporate and Generation SupportUSD 83 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Exelon recorded severance accrual for anticipated employee position reductions resulting from post-merger integration with Constellation. Majority of positions are corporate and Generation support. Cash payments expected to be made by end of 2014.
2012-03-31restructuringin_progress2012-03-122014-12-31United StatesGenerationUSD 45 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Generation portion of Constellation merger severance plan.
2012-03-31restructuringin_progress2012-03-122014-12-31United StatesComEdUSD 11 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		ComEd portion of Constellation merger severance plan.
2012-03-31restructuringin_progress2012-03-122014-12-31United StatesPECOUSD 5 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		PECO portion of Constellation merger severance plan.
2012-03-31restructuringin_progress2012-03-122014-12-31MarylandBGEUSD 16 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		BGE portion of Constellation merger severance plan. Any BGE employee position reductions will be voluntary under self-identification process.
2011-12-31plant_closurein_progress2532009-12-012013-12-31United StatesGenerationUSD 37 (millions)restructuring_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Retirement of Cromby and Eddystone generating units; total expected costs include $14M severance, $17M inventory write-down, $6M shutdown costs; cash payments began January 2010 and continue through 2013; 253 positions eliminated
2011-12-31restructuringcompleted5002009-06-012011-12-31United StatesCorporate / ComEdUSD 40 (millions)restructuring_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		2009 corporate restructuring eliminating approximately 500 positions (400 corporate support, 100 management at ComEd); cash payments completed as of December 31, 2011; pre-tax charge of $40M recorded in June 2009 with subsequent net credit of approximately $6M
2011-12-31restructuringcompleted2532009-12-012013-12-31United StatesGenerationUSD 37 (millions)restructuring_footnote
f5-10k / Qwen3.6-27B-Q8_0		Retirement of Cromby and Eddystone units. Total expected costs $37 million including severance, inventory write-down, and shut down costs. Cash payments began Jan 2010 and continue through 2013.
2011-12-31acquisition_additioncompleted2011-08-242011-08-24TexasGenerationbusiness_combinations_footnote
f5-10k / Qwen3.6-27B-Q8_0		Acquisition of Wolf Hollow, LLC. Headcount not explicitly disclosed.
2011-12-31acquisition_additioncompleted2011-09-302011-09-30CaliforniaGenerationbusiness_combinations_footnote
f5-10k / Qwen3.6-27B-Q8_0		Acquisition of Antelope Valley Solar Ranch One. Headcount not explicitly disclosed.
2011-12-31acquisition_additioncompleted2010-12-092010-12-09United StatesGenerationbusiness_combinations_footnote
f5-10k / Qwen3.6-27B-Q8_0		Acquisition of Exelon Wind (John Deere Renewables). Headcount not explicitly disclosed in acquisition note, but included in Generation segment total.
2011-12-31restructuringin_progress Exelon Generation Co L L C / Expected Plant Shut Down CostsUSD 2,000,000 (absolute)restructuring_footnote
f5-10k / no-ai-xblr
2011-12-31restructuringin_progress Exelon Generation Co L L CUSD 2,000,000 (absolute)restructuring_footnote
f5-10k / no-ai-xblr
2011-09-30plant_closurein_progress2532009-12-012012-05-31United States (Pennsylvania)Generation — Cromby and Eddystone generating stationsUSD 14 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		253 positions eliminated across four retiring units; $14M severance is part of $37M total expected costs. Two units retired 2011-05-31; Cromby Unit 2 retires 2011-12-31 and Eddystone Unit 2 retires 2012-05-31.
2011-09-30otherin_progress2010-12-082019-12-31United States (New Jersey)Generation — Oyster Creek Generating Stationrestructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Oyster Creek generation operations to cease by 2019-12-31; $14M in employee retention payments made in Q1 2011, generating ~$3M annual expense 2011–2015. No headcount reduction count disclosed.
2011-09-30restructuringin_progress2532009-12-012013-12-31United StatesGenerationUSD 37 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Retirement of Cromby and Eddystone units. Total expected costs $37M including $14M for salary continuance and health/welfare severance. Cash payments began Jan 2010 and continue through 2013.
2011-09-30otherin_progress2010-12-082019-12-31New JerseyGenerationUSD 14 (millions)MD&A
f5-10q / Qwen3.6-27B-Q8_0		Oyster Creek closure. Employee retention payments of approx $14M made in Q1 2011, resulting in approx $3M expense annually through 2015. Specific headcount not disclosed.
2011-06-30plant_closurein_progress2512009-12-012012-05-31United States (Pennsylvania)Generation — Cromby and Eddystone generating stationsUSD 37 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Total expected cost of $37M includes $14M severance, $17M inventory write-down, $6M shutdown costs. Cromby Unit 1 and Eddystone Unit 1 retired 2011-05-31; Cromby Unit 2 to retire 2011-12-31; Eddystone Unit 2 to retire 2012-05-31.
2011-06-30plant_closureannounced2010-12-082019-12-31United States (New Jersey)Generation — Oyster Creek nuclear stationrestructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Generation will cease generation operations at Oyster Creek by 2019-12-31. Employee retention payments of ~$14M made in H1 2011, resulting in ~$3M expense annually 2011-2015. No headcount reduction count disclosed.
2011-06-30restructuringin_progress2512009-12-012013-12-31United StatesGenerationUSD 37 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Retirement of Cromby and Eddystone generating units. Total expected costs $37M including $14M for salary continuance and health/welfare severance. Cash payments continue through 2013.
2011-03-31plant_closurein_progress2602009-12-022012-05-31United States (Pennsylvania)Generation — Cromby and Eddystone generating stationsUSD 38 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Total expected cost of $38M includes $15M severance, $17M inventory write-down, $6M shutdown costs. Staggered retirement dates: Cromby Unit 1 and Eddystone Unit 1 on 2011-05-31; Cromby Unit 2 on 2011-12-31; Eddystone Unit 2 on 2012-05-31. Severance obligation balance was $8M at 2011-03-31.
2011-03-31plant_closureannounced2010-12-082019-12-31United States (New Jersey)Generation — Oyster Creek Generating StationUSD 14 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Generation will permanently cease generation operations at Oyster Creek by 2019-12-31. Employee retention payments of approximately $14M made in Q1 2011, resulting in approximately $3M of expense in each of years 2011 through 2015. Number of positions affected not disclosed.
2011-03-31restructuringin_progress2602009-12-022013-12-31United StatesGeneration (Cromby and Eddystone units)USD 15 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Retirement of Cromby and Eddystone generating units. Total expected costs $38 million, including $15 million for salary continuance and health/welfare severance. Cash payments began Jan 2010 and continue through 2013. Q1 2011 charge was $2 million.
2011-03-31otherin_progress2010-12-082019-12-31New JerseyGeneration (Oyster Creek)USD 14 (millions)MD&A
f5-10q / Qwen3.6-27B-Q8_0		Permanent cessation of operations at Oyster Creek by Dec 31, 2019. Q1 2011 employee retention payments of $14 million made, resulting in $3 million expense annually through 2015.
2010-12-31restructuringcompleted5002009-06-012010-12-31United StatesCorporate support and managementUSD 40 (millions)restructuring_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Announced June 2009; approximately 400 corporate support positions and 100 management positions at ComEd. Cash payments began July 2009 and were substantially completed by December 31, 2010. Pre-tax charge of $40M recorded June 2009, with a net pre-tax credit of approximately $6M recorded subsequently.
2010-12-31plant_closurein_progress2802009-12-022012-06-01United StatesGeneration — Fossil generating units (Cromby and Eddystone)USD 38 (millions)restructuring_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Retirement of Cromby Units 1&2 and Eddystone Units 1&2. Total expected cost of $38M including $15M severance, $17M inventory write-down, and $6M shutdown costs. Cash payments began January 2010 and continue through 2013. Additional expected accelerated depreciation of approximately $206M. Retirement schedule: Cromby 1 and Eddystone 1 on 2011-05-31, Cromby 2 on 2011-12-31, Eddystone 2 on 2012-06-01.
2010-12-31acquisition_additioncompleted2010-12-092010-12-09United StatesGeneration — Wind (Exelon Wind / John Deere Renewables)business_combinations_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Acquisition of John Deere Renewables, LLC (now Exelon Wind) for approximately $893M cash plus $32M contingent consideration. Acquired 735 MW of installed wind capacity across eight states. Employee headcount added through the acquisition is not disclosed.
2010-12-31restructuringcompleted2009-12-012010-12-31United StatesGenerationUSD 22 (millions)restructuring_footnote
f5-10k / Qwen3.6-27B-Q8_0		Severance benefits expense for 2009 corporate restructuring plan. Employee count not explicitly disclosed in footnote, but charge recorded in 2010.
2010-12-31plant_closurein_progress2009-12-022012-06-01PennsylvaniaGenerationUSD 4 (millions)restructuring_footnote
f5-10k / Qwen3.6-27B-Q8_0		Retirement of Cromby and Eddystone units. Severance charge of $4 million recorded in 2010. Employee count not explicitly disclosed.
2010-09-30restructuringin_progress5002009-06-012010-12-31United StatesCorporate headquarters and ComEd managementUSD 40 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Announced June 2009; ~400 corporate support positions and ~100 ComEd management positions. Severance balance declined from $19M at Dec 31, 2009 to $4M at Sep 30, 2010; cash payments expected to complete by end of 2010.
2010-09-30plant_closurein_progress2802009-12-022013-12-31United StatesGeneration — Cromby and Eddystone fossil generating stationsUSD 37 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Retirement of Cromby Units 1–2 and Eddystone Units 1–2 effective May 31, 2011 (staggered through June 2012 per PJM reliability schedule). Total expected Generation costs of $37M including $15M severance, $17M inventory write-down, $5M shutdown costs; plus ~$205M accelerated depreciation. Cash payments began January 2010 through 2013.
2010-09-30acquisition_additionannounced2010-08-302010-12-31United StatesGeneration — wind power (John Deere Renewables, LLC)business_combinations_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Agreement to acquire JDR for ~$860M covering 735 MW of installed wind capacity in eight states, plus ~$40M contingent on construction start for 230 MW of development projects. No headcount disclosed. Contingent on antitrust and regulatory approval; expected to close Q4 2010. $900M senior notes issued Sep 30, 2010 to fund acquisition.
2010-09-30restructuringin_progress2802009-12-012013-12-31United StatesGenerationUSD 15 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Related to announced retirements of Cromby Unit 2 and Eddystone Unit 2. Cash payments began in January 2010 and continue through 2013.
2010-09-30restructuringcompleted5002009-06-01United StatesCorporate and ComEdrestructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Announced in June 2009. Eliminated approx. 400 corporate support positions and 100 management level positions at ComEd. Majority completed by period end.
2010-06-30plant_closurein_progress2802009-12-022013-12-31United StatesGeneration — Cromby and Eddystone generating stationsUSD 37 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Retirement of Cromby Units 1–2 and Eddystone Units 1–2 effective May 31, 2011, with PJM-driven reliability extensions to Dec 2011 and Dec 2012. Charge includes $15M severance, $17M inventory write-down, $5M shutdown costs. Cash payments began Jan 2010 through 2013. Approximately 280 positions to be eliminated.
2010-06-30restructuringin_progress5002009-06-012010-12-31United StatesCorporate headquarters (BSC) and ComEd managementUSD 40 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		2009 cost savings program: ~400 corporate support positions and ~100 ComEd management positions. Substantially completed by Sep 30, 2009. Severance obligation roll-forward: $19M at Dec 31, 2009 to $9M at Jun 30, 2010 after $10M cash payments. Cash payments expected to complete by end of 2010.
2010-06-30restructuringin_progress5002009-06-012010-12-31Corporate and ComEdCorporate support and ManagementUSD 40 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Announced June 2009. Elimination of approx. 400 corporate support positions and 100 management positions at ComEd. Substantially all cash payments expected by end of 2010.
2010-06-30restructuringin_progress2802009-12-022013-12-31Generation (Cromby and Eddystone stations)OperationsUSD 15 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Announced Dec 2009 regarding retirement of Cromby and Eddystone units. Approx. 280 positions eliminated, majority at units to be retired. Cash payments continue through 2013.
2010-06-30restructuringin_progressUSD 5,000,000 (absolute)restructuring_footnote
f5-10q / no-ai-xblr
2010-06-30restructuringin_progressEXELON GENERATION CO LLCUSD 5,000,000 (absolute)restructuring_footnote
f5-10q / no-ai-xblr
2010-03-31restructuringin_progress5002009-06-182010-12-31United StatesCorporate headquarters and ComEd managementUSD 40 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Announced June 2009; ~400 corporate support positions and ~100 ComEd management positions. Severance obligation declined from $19M to $14M during Q1 2010 via $5M cash payments. Cash payments expected to complete by end of 2010.
2010-03-31plant_closurein_progress2802009-12-022013-12-31United StatesGeneration — Cromby and Eddystone fossil generating stationsUSD 38 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Retirement of Cromby Units 1–2 and Eddystone Units 1–2. Total expected cost $38M including $16M severance, $17M inventory write-down, $5M shutdown costs, plus ~$180M accelerated depreciation. Severance obligation declined from $7M to $5M during Q1 2010. Retirement dates staggered: May 2011 through Dec 2013, dependent on PJM transmission upgrades.
2010-03-31restructuringin_progress5002009-06-182010-12-31Corporate and ComEdCorporate support and ManagementUSD 40 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Announced June 2009. Elimination of approx. 400 corporate support positions and 100 management positions at ComEd. Substantially all cash payments expected by end of 2010.
2010-03-31restructuringin_progress2802009-12-022014-12-31Generation (Cromby and Eddystone stations)OperationsUSD 16 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Announced Dec 2009. Retirement of four fossil generating units. Cash payments for severance continue through 2014.
2009-12-31restructuringin_progress5002009-06-182010-12-31United StatesCorporate support and ComEd managementUSD 34 (millions)restructuring_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Eliminated approximately 500 positions: ~400 corporate support roles (mostly HQ) and ~100 management positions at ComEd. Pre-tax charge of $40M in June 2009, net pre-tax credit of ~$6M subsequently. Cash payments began July 2009, substantially complete by end of 2010 or early 2011. Severance expense of $34M recorded in 2009.
2009-12-31plant_closureannounced2802009-12-022011-05-31Pennsylvania, United StatesGeneration — Cromby and Eddystone fossil unitsUSD 40 (millions)restructuring_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Retirement of Cromby Units 1 & 2 and Eddystone Units 1 & 2 effective May 31, 2011. Total expected cost $40M including $18M severance, $17M inventory write-down, $5M shutdown costs. In 2009, $24M pre-tax charge recorded ($7M severance + $17M inventory write-down) plus $32M accelerated depreciation. PJM notified Exelon in Jan 2010 that retirement may cause reliability impacts.
2009-12-31restructuringcompleted5002009-06-182010-12-31United StatesCorporate and ComEdUSD 34 (millions)MD&A
f5-10k / Qwen3.6-27B-Q8_0		Job reductions including 400 corporate support positions and 100 management level positions at ComEd. Severance expense recorded was $34 million.
2009-12-31plant_closureannounced2802009-12-022011-05-31PennsylvaniaGenerationUSD 7 (millions)restructuring_footnote
f5-10k / Qwen3.6-27B-Q8_0		Announced intention to permanently retire Cromby Units 1 and 2 and Eddystone Units 1 and 2. Includes 280 employee positions. $7 million charge for severance recorded in 2009.
2009-09-30restructuringcompleted4002009-06-182009-09-30United StatesCorporate support (Exelon headquarters)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Part of a ~500-position reduction announced June 18, 2009; 400 corporate support positions mostly completed by Sept 30, 2009. Nine-month severance expense for Exelon total was $35M pre-tax.
2009-09-30restructuringcompleted1002009-06-182009-09-30United StatesManagement (Commonwealth Edison)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		100 management-level positions at ComEd; majority completed by Sept 30, 2009. ComEd nine-month severance expense was $19M pre-tax.
2009-09-30restructuringin_progressUSD 11 (millions)MD&A
f5-10q / Qwen3.6-27B-Q8_0		Generation recognized $11 million in severance charges for the nine months ended September 30, 2009. Employee count not disclosed.
2009-09-30restructuringin_progressPECOUSD 3 (millions)MD&A
f5-10q / Qwen3.6-27B-Q8_0		PECO recognized $3 million in severance charges for the nine months ended September 30, 2009. Employee count not disclosed.
2009-06-30restructuringin_progress4002009-06-182009-08-31United StatesCorporate support (headquarters)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Approximately 400 corporate support positions, mostly at corporate headquarters, to be eliminated as part of Exelon's June 2009 restructuring. Charge is disclosed at the consolidated program level ($40M) and not allocated by sub-component.
2009-06-30restructuringin_progress1002009-06-182009-08-31United StatesCommonwealth Edison Company (ComEd) — management levelrestructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Approximately 100 management-level positions at ComEd. Charge is disclosed at the consolidated program level ($40M) and not allocated by sub-component.
2009-06-30restructuringin_progressIllinoisComEdUSD 2 (millions)MD&A
f5-10q / Qwen3.6-27B-Q8_0		ComEd recorded severance charges related to a 2009 restructuring plan. Employee count not disclosed.
2009-06-30restructuringin_progressPennsylvaniaPECOUSD 5 (millions)MD&A
f5-10q / Qwen3.6-27B-Q8_0		PECO recorded severance charges. Employee count not disclosed.
2008-12-31othercompleted2008-12-312008-12-31United StatesGeneration (nuclear operations)Item_1_Business
f5-10k / MiMo-V2.6-Flash-fp8-HTML		In 2008, Generation hired approximately 1,000 security officers by negotiating 9 CBAs covering 7 unions. Headcount addition through new collective bargaining agreements.
2008-12-31othercompleted2008-10-312008-12-18United StatesComEd and Exelon Business Services CompanyItem_1_Business
f5-10k / MiMo-V2.6-Flash-fp8-HTML		On October 31, 2008, a 5-year agreement was reached for Local 15 represented employees of ComEd and BSC; ratified December 18, 2008. Also a 3-year contract extension reached for Local 15 represented employees of Generation.
2008-12-31othercompleted2008-11-142008-11-14United StatesGeneration (nuclear — Three Mile Island)Item_1_Business
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Generation reached a 5-year agreement covering TMI employees ratified November 14, 2008, extending the contract to 2012.
2008-12-31otherannounced2009-01-082009-01-08United StatesGeneration (nuclear operations — AmerGen)subsequent_events
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Effective January 8, 2009 (after fiscal year-end), AmerGen Energy Company, LLC was merged into Generation. The reorganization will not impact operations of the generating stations. CBAs covering approximately 750 AmerGen employees transferred to Generation.
2007-06-30othercompleted1,2002007-06-30United States — Philadelphia, PennsylvaniaPECO Energy Company — craft and call center employeesother
f5-10q / MiMo-V2.6-Flash-fp8-HTML		PECO and IBEW Local 614 reached initial collective bargaining agreements in Q2 2007 covering work hours, wages, benefits, and working conditions for approximately 1,200 represented employees. Filer states no material financial impact. Union representation resulted from two elections held in 2004.
2007-06-30othercompleted1,2002007-06-302007-06-30Philadelphia service territoryCraft and call center employeesother
f5-10q / Qwen3.6-27B-Q8_0		PECO and International Brotherhood of Electrical Workers Local 614 reached initial agreements covering work hours, wages, benefits and working conditions for approximately 1,200 employees.
2007-03-31otherin_progress1,2002007-06-30Philadelphia, Pennsylvania, United StatesPECO craft and call center employeesother
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Collective bargaining negotiations between PECO and IBEW Local 614 for initial agreements, begun 2005; no agreements finalized as of filing. Approximately 1,200 employees in the affected workgroup. Possible tentative agreement by end of Q2 2007.
2006-12-31restructuringcompleted2006-09-142006-12-31United StatesCorporateUSD 29 (millions)restructuring_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Following termination of the proposed PSEG merger on 2006-09-14, Exelon evaluated its organizational structure and concluded certain positions would be eliminated, recording $29 million of severance charges in 2006. Severance balance rollforward: $22M at 1/1/2006, +$21M charges, -$9M cash payments, $34M at 12/31/2006. Employee count not disclosed.
2006-12-31divestiture_reductioncompleted2006-11-062007-02-09MexicoGenerationbusiness_combinations_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Generation agreed on 2006-11-06 to sell 49.5% interests in TEG and TEP (two 230 MW facilities in Mexico) to AES for $95 million; transaction closed 2007-02-09. Headcount impact not disclosed.
2006-12-31restructuringcompleted2006USD 29 (millions)restructuring_footnote
f5-10k / Qwen3.6-27B-Q8_0		Exelon recorded $29 million of severance charges in 2006 following the termination of the proposed merger with PSEG, resulting from the elimination of certain positions.
2006-09-30restructuringin_progress2006-09-30United StatesCorporate / All segmentsUSD 23 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Exelon recorded $23M severance charges in Q3 2006 after evaluating organizational structure and resource needs on a standalone basis following the PSEG merger termination. Severance obligation balance at 2006-09-30 was $36M. No employee count disclosed.
2006-09-30restructuringcompleted2006-09-14United StatesCorporateUSD 55 (millions)MD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Write-off of $55M ($35M after tax) capitalized PSEG merger costs recorded in Q3 2006 upon termination of the Merger Agreement on 2006-09-14. Not a headcount action per se but triggered the organizational restructuring and severance charges above.
2006-09-30restructuringin_progress2006-09-30United StatesCorporate / All SegmentsUSD 55 (millions)MD&A
f5-10q / Qwen3.6-27B-Q8_0		Write-off of capitalized costs associated with the terminated proposed Merger with PSEG. Filing mentions 'increased severance and severance-related charges' in MD&A but does not quantify employee count or specific severance amount separately from the $55M write-off.
2006-06-30restructuringin_progressUSD 1 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Exelon recorded $1 million in salary continuance severance costs for the six months ended June 30, 2006. Employee count affected not disclosed.
2006-03-31restructuringin_progressUSD 1 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Exelon recorded $1 million in salary continuance severance costs for the three months ended March 31, 2006. Breakdown: ComEd ($-1M), PECO ($0), Generation ($1M), Other ($1M). No employee counts disclosed.
2005-12-31restructuringcompleted20052005-12-31United StatesCorporate / All SegmentsUSD -14 (millions)MD&A
f5-10k / Qwen3.6-27B-Q8_0		Exelon recorded a severance benefit of $14 million in 2005 related to personnel reductions. Specific headcount affected is not disclosed.
2005-09-30restructuringcompletedGenerationUSD 43 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Generation recorded an undiscounted $43 million pre-tax charge for estimated future asbestos-related personal injury claims through 2030. Employee count affected is not disclosed.
2005-09-30restructuringcompletedExelonUSD -12 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Exelon recorded a net benefit (income) of $12 million for salary continuance severance costs for the nine months ended September 30, 2005. Employee count affected is not disclosed.
2005-06-30restructuringin_progress1402005-06-30United StatesComEdrestructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		140 positions identified for elimination not yet eliminated as of June 30, 2005. Net change of (41) positions during six months ended June 30, 2005. Salary continuance obligation balance of $17 million at June 30, 2005.
2005-06-30restructuringin_progress122005-06-30United StatesPECOrestructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		12 positions identified for elimination not yet eliminated as of June 30, 2005. Net change of 10 positions during six months ended June 30, 2005. Salary continuance obligation balance of $4 million at June 30, 2005.
2005-06-30restructuringin_progress522005-06-30United StatesGenerationrestructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		52 positions identified for elimination not yet eliminated as of June 30, 2005. Net change of (20) positions during six months ended June 30, 2005. Salary continuance obligation balance of $11 million at June 30, 2005. Excludes severance charges of $4 million related to Salem (42.59% owned, operated by PSEG).
2005-06-30restructuringin_progress2332005-06-30United StatesExelon (consolidated)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		233 positions identified for elimination not yet eliminated as of June 30, 2005 across all registrants. Net change of (59) positions during six months ended June 30, 2005. Salary continuance obligation balance of $45 million at June 30, 2005. This is the consolidated total across ComEd (140), PECO (12), Generation (52), and Exelon corporate (233 total includes all). Note: Exelon column shows 233 which equals the total; component breakdowns sum to 140+12+52=204, with remainder at Exelon corporate level.
2005-06-30divestiture_reductioncompleted2005-01-312005-01-31United StatesGeneration — Sithe Energies, Inc.business_combinations_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Sale of 100% of Sithe to Dynegy completed January 31, 2005. Deconsolidated approximately $820 million of debt and released approximately $125 million of credit support. No employee headcount disclosed for this divestiture.
2005-06-30divestiture_reductioncompleted2004-05-252004-05-25United StatesGeneration — Boston Generating, LLCbusiness_combinations_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Sale completed May 25, 2004 (prior period). Referenced in current-period comparative discussion. No employee headcount disclosed.
2005-06-30restructuringin_progressUSD 43 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Pre-tax charge for estimated future asbestos-related bodily injury claims recorded in Generation's operating and maintenance expense.
2005-06-30restructuringin_progress59Exelon Corporaterestructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Net change in positions expected to be eliminated during the six months ended June 30, 2005.
2005-06-30restructuringin_progress41ComEdrestructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Net change in positions expected to be eliminated during the six months ended June 30, 2005.
2005-06-30restructuringin_progress10PECOrestructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Net change in positions expected to be eliminated during the six months ended June 30, 2005.
2005-06-30restructuringin_progress20Generationrestructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Net change in positions expected to be eliminated during the six months ended June 30, 2005.
2005-03-31restructuringin_progress331United StatesExelon Consolidated (ComEd, PECO, Generation, and corporate)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		331 positions identified for elimination but not yet eliminated as of 2005-03-31 across Exelon Consolidated (ComEd: 199, PECO: 17, Generation: 61). Salary continuance severance obligation balance was $54M at quarter-end. Net change in positions expected to be eliminated during Q1 2005 was (17) for Exelon Consolidated. No total workforce headcount disclosed for percentage calculation.
2004-12-31restructuringin_progress2602004-01-01United StatesMultiple segmentsUSD 32 (millions)restructuring_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Approximately 260 positions identified for elimination during 2004; approximately 380 of identified positions not yet eliminated as of December 31, 2004. Salary continuance severance charge of $32 million. Total charges including special health/welfare severance ($16M) and curtailment/settlement costs ($24M) were $56 million before income taxes. Related to The Exelon Way cost-reduction initiative.
2004-12-31divestiture_reductioncompleted2004-05-252004-09-01United States (New England)Generationdiscontinued_operations_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Sale of Boston Generating completed May 25, 2004; plant operations and power marketing transferred to lenders' special purpose entity on September 1, 2004. Headcount impact not disclosed. Prior-year impairment charge of $945 million (pre-tax) recorded in 2003.
2004-12-31acquisition_additioncompleted2003-12-222003-12-22United StatesGenerationbusiness_combinations_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Acquisition of remaining 50% interest in AmerGen Energy Company completed December 22, 2003 (prior fiscal year). Headcount impact not disclosed. Included in 2004 results as full-year consolidation.
2004-12-31restructuringcompleted2602004-01-012004-12-31United StatesAll SegmentsUSD 56 (millions)restructuring_footnote
f5-10k / Qwen3.6-27B-Q8_0		Exelon identified approximately 260 positions for elimination in 2004. Total charges of $56 million (before income taxes) were recorded, including $32 million for salary continuance and $24 million for pension/postretirement curtailment and settlement costs.
2004-12-31restructuringcompleted802004-01-012004-12-31IllinoisComEdUSD 21 (millions)restructuring_footnote
f5-10k / Qwen3.6-27B-Q8_0		ComEd identified approximately 80 positions for elimination. Total charges of $21 million (before income taxes) were recorded.
2004-12-31restructuringcompleted552004-01-012004-12-31PennsylvaniaPECOUSD 7 (millions)restructuring_footnote
f5-10k / Qwen3.6-27B-Q8_0		PECO identified approximately 55 positions for elimination. Total charges of $7 million (before income taxes) were recorded.
2004-09-30restructuringin_progress1,850United StatesEnergy Delivery, Generation, Enterprises, CorporateUSD 23 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		The Exelon Way program; 1,850 positions identified for elimination as of 2004-09-30. $23M severance expense recorded in nine months ended 2004-09-30 ($19M in Q3 alone). Severance obligation balance was $92M at quarter-end. Additional positions may be identified.
2004-09-30othercompleted1,1002004-07-21United States — Philadelphia, PAPECO Energy Companyother
f5-10q / MiMo-V2.6-Flash-fp8-HTML		NLRB union election held 2004-07-21 resulted in union representation for 1,100 PECO employees in the Philadelphia service territory. IBEW Local 614; initial agreement negotiations not yet begun.
2004-09-30divestiture_reductioncompleted2004-05-252004-09-01United States — Boston, MAGenerationother
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Sale of Boston Generating, LLC completed 2004-05-25; plant operations transferred 2004-09-01. Headcount removed not disclosed. Approximately $1.2B assets and $1.3B liabilities eliminated.
2004-09-30divestiture_reductioncompletedUnited StatesEnterprisesother
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Multiple Enterprises divestitures in 2004: Thermal Chicago business (2004-06-30), ETT Nevada/Aladdin (2004-09-29), substantially all operating components of Exelon Services, and PECO TelCove (2004-06-30). Headcount removed not disclosed for any transaction.
2004-09-30restructuringin_progress1,850Company-wideVariousUSD 19 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Exelon, ComEd, PECO, and Generation collectively identified 1,850 positions for elimination as of September 30, 2004, under 'The Exelon Way'. Q3 2004 salary continuance severance expense was $19 million.
2004-09-30othercompleted1,1002004-07-21Philadelphia service territoryPECO Energy Companyother
f5-10q / Qwen3.6-27B-Q8_0		Union election held on July 21, 2004, resulted in union representation for 1,100 employees at PECO. Negotiations for an initial agreement had not yet begun.
2004-06-30restructuringin_progress1,650United StatesExelon, ComEd, PECO, Generation (company-wide)USD 4 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Cumulative positions identified for elimination through June 30, 2004 under The Exelon Way. Six-month 2004 net severance additions were $4M. Salary continuance balance at June 30, 2004 was $98M consolidated ($42M ComEd, $14M PECO, $22M Generation).
2004-06-30divestiture_reductioncompleted2004-05-252004-05-25United States (New England)Generationother
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Sale of Boston Generating, LLC to lenders' special purpose entity. Approximately $1.2B assets and $1.3B liabilities removed from balance sheet. No employee count disclosed.
2004-06-30divestiture_reductioncompleted2004-06-302004-06-30United States (Chicago)Enterprisesother
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Sale of Exelon Thermal Holdings Chicago business for $134M net cash proceeds. No employee count disclosed.
2004-06-30divestiture_reductioncompleted2004-06-302004-06-30United StatesEnterprisesother
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Sale of PECO TelCove communications joint venture and telecom assets for $49M. No employee count disclosed.
2004-06-30divestiture_reductionin_progress2004-12-31United StatesEnterprisesother
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Disposal of certain Exelon Services businesses during six months ended June 30, 2004 for expected proceeds of $34M. Remaining Services businesses classified as held for sale. No employee count disclosed.
2004-06-30othercompleted2004-07-212004-07-29United States (Pennsylvania)PECOother
f5-10q / MiMo-V2.6-Flash-fp8-HTML		New NLRB union election held July 21, 2004; majority of eligible PECO employees voted for IBEW representation. NLRB certification expected July 29, 2004. Subsequent event after quarter end.
2004-06-30restructuringin_progress1,6502004-06-30Company-wideVariousUSD 4 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Identified 1,650 positions for elimination through June 30, 2004 under 'The Exelon Way'. YTD salary continuance severance expense recorded was $4 million.
2004-06-30othercompleted2004-07-21PennsylvaniaPECO Energy Companysubsequent_events
f5-10q / Qwen3.6-27B-Q8_0		Majority of PECO employees eligible to vote voted in favor of representation by the IBEW in an election held July 21, 2004. NLRB certification expected July 29, 2004.
2004-03-31restructuringin_progress5132004-12-31United StatesGenerationMD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Part of The Exelon Way program. Generation expects 513 employees severed through 2004. In Q1 2004 Generation recorded a $1M charge for new positions and reversed $7M of excess accruals for previously identified individuals.
2004-03-31restructuringin_progressUnited StatesPECO Energy CompanyUSD 5 (millions)MD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		PECO recorded a $5M severance charge in Q1 2004 for The Exelon Way and is considering whether additional severance-related costs will be incurred in future periods. No employee count disclosed.
2004-03-31restructuringin_progressUnited StatesExelon Corporation (consolidated)USD 1 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Exelon consolidated salary continuance severance additions of $1M net in Q1 2004 (Energy Delivery $5M, Generation net $(6)M, Enterprises $1M, Corporate $1M, with intersegment eliminations). Severance obligation balance at March 31, 2004 was $113M consolidated ($48M ComEd, $18M PECO, $27M Generation). No employee counts disclosed.
2004-03-31restructuringin_progress5132004-12-31GenerationMD&A
f5-10q / Qwen3.6-27B-Q8_0		Based upon current estimates, Generation expects that 513 employees will be severed through 2004 as part of 'The Exelon Way' initiatives.
2003-12-31restructuringin_progress7292004-12-31United States (northern Illinois)ComEdUSD 61 (millions)restructuring_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		The Exelon Way program; 729 positions (professional, managerial and union) identified for elimination by end of 2004. Charge is salary continuance severance before income taxes recorded in 2003; ComEd also recorded $28M special health and welfare severance and $48M pension/OPEB curtailment costs, for $137M total 2003 charges. Announcement date not disclosed.
2003-12-31restructuringin_progress1662004-12-31United States (southeastern Pennsylvania)PECOUSD 16 (millions)restructuring_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		The Exelon Way program; approximately 166 positions identified for elimination by end of 2004. Charge is salary continuance severance before income taxes recorded in 2003; PECO also recorded $4M special health and welfare severance and $10M curtailment costs, for $30M total 2003 charges. Announcement date not disclosed.
2003-12-31restructuringin_progress4702004-12-31United StatesGenerationUSD 33 (millions)restructuring_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		The Exelon Way program; approximately 470 positions identified for elimination by end of 2004. Charge is salary continuance severance before income taxes recorded in 2003; Generation also recorded $12M special health and welfare severance and $15M curtailment costs, for $60M total 2003 charges net of co-owner billings. Announcement date not disclosed.
2003-12-31divestiture_reductioncompleted4,0002003-09-30United StatesEnterprises (InfraSource, Inc.)Item_1_Business
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Electric construction and services, underground and telecom businesses of InfraSource sold in September 2003; approximately 4,000 employees at time of sale. Remaining F&M Holdings operations retained approximately 400 employees. Exact sale date not disclosed.
2003-12-31restructuringin_progress1,5002003-01-012004-12-31United StatesAll SegmentsUSD 227 (millions)Item 7. MD&A - Critical Accounting Policies and Estimates
f5-10k / Qwen3.6-27B-Q8_0		Implementation of 'The Exelon Way'. 1,500 positions identified for elimination by end of 2004. ComEd: 729 positions, $61M salary continuance + $28M health/welfare + $48M curtailment = $137M. PECO: 166 positions, $16M salary continuance + $4M health/welfare + $10M curtailment = $30M. Generation: 470 positions, $33M salary continuance + $12M health/welfare + $15M curtailment (net of $11M co-owner billings) = $49M. Total charges approx $216M-$227M depending on netting.
2003-09-30restructuringin_progress1,0422003-08-062004-12-31United StatesCorporate, Energy Delivery, Generation, EnterprisesUSD 87 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		The Exelon Way program. Q3 cash severance charge $87M; total Q3 charge including pension/postretirement curtailment and special health/welfare benefits was $167M. Positions identified by registrant: ComEd 451, PECO 140, Generation 317 (remaining 134 in Enterprises/Corporate). Additional positions anticipated for 2005-2006.
2003-09-30restructuringin_progress1,0422003-07-012004-12-31United StatesCorporate and all segmentsUSD 167 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Part of 'The Exelon Way' business model implementation. Charge includes $87M cash severance, $80M pension/postretirement curtailment costs. Majority are professional/managerial. Exelon anticipates identifying additional positions for elimination in 2005 and 2006.
2003-09-30restructuringin_progress4512003-07-012004-12-31IllinoisEnergy Delivery (ComEd)USD 37 (millions)MD&A
f5-10q / Qwen3.6-27B-Q8_0		Subset of The Exelon Way. ComEd recorded $37M cash severance charge in Q3 2003.
2003-09-30restructuringin_progress1402003-07-012004-12-31PennsylvaniaEnergy Delivery (PECO)USD 13 (millions)MD&A
f5-10q / Qwen3.6-27B-Q8_0		Subset of The Exelon Way. PECO recorded $13M cash severance charge in Q3 2003.
2003-09-30restructuringin_progress3172003-07-012004-12-31United StatesGenerationUSD 20 (millions)MD&A
f5-10q / Qwen3.6-27B-Q8_0		Subset of The Exelon Way. Generation recorded $20M cash severance charge in Q3 2003.
2003-06-30othercompleted3002003-06-18United States — Mid-AtlanticGeneration — fossil and hydroelectric operationsother
f5-10q / MiMo-V2.6-Flash-fp8-HTML		IBEW union election held June 18, 2003; approximately 300 previously unrepresented production and maintenance employees voted to join IBEW.
2003-06-30othercompleted2003-05-21United States — PennsylvaniaPECO Energy Companyother
f5-10q / MiMo-V2.6-Flash-fp8-HTML		IBEW union election held May 21, 2003; majority of PECO workers voted against union representation. Results not yet certified due to pending challenges and objections. No employee count disclosed.
2003-06-30restructuringannounced2003-04-282005-12-31United StatesExelon Corporation — all segments (The Exelon Way)MD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		The Exelon Way cost-reduction program includes employee separation costs expected during H2 2003 through 2005; no employee count or charge amount disclosed as not reasonably estimable.
2003-06-30othercompleted2003-06-18Mid-AtlanticFossil and hydroelectric operationsother
f5-10q / Qwen3.6-27B-Q8_0		Approximately 300 production and maintenance employees voted to become represented by the IBEW.
2003-06-30restructuringin_progress2003-06-302005-12-31United StatesCorporate and support functionsMD&A
f5-10q / Qwen3.6-27B-Q8_0		Exelon anticipates incurring expenses associated with rationalization of business functions and employee separation costs under 'The Exelon Way' through 2005. Costs cannot be reasonably estimated.
2003-03-31otherannounced2003-04-21United States — PennsylvaniaPECO Energy Companyother
f5-10q / MiMo-V2.6-Flash-fp8-HTML		IBEW petition for unionization vote of certain PECO employees; NLRB Decision and Direction of Election issued; election required within 30 days of DD&E.
2003-03-31otherannounced2003-04-09United States — Mid-AtlanticExelon Generation Company, LLC — fossil and hydroelectric operationsother
f5-10q / MiMo-V2.6-Flash-fp8-HTML		IBEW petition to represent production and maintenance employees not currently covered by CBA; filer estimates 350 to 400 additional employees; election anticipated in second half of 2003.
2003-03-31otherannounced2003-04-21PennsylvaniaPECO Energy CompanyPart II, Item 5 - Other Information
f5-10q / Qwen3.6-27B-Q8_0		NLRB issued Decision and Direction of Election on April 21, 2003, for certain PECO employees. Election to be conducted within 30 days.
2003-03-31otherannounced3752003-04-09Mid-AtlanticExelon Generation Company, LLCPart II, Item 5 - Other Information
f5-10q / Qwen3.6-27B-Q8_0		IBEW filed petition to represent 350-400 production and maintenance employees in fossil and hydroelectric operations. Election anticipated in second half of 2003.
2002-12-31restructuringin_progress5132000-10-20United StatesComEdrestructuring_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		513 former Unicom positions terminated in 2002 as part of 1,228 total merger-related program. Also 211 normal attrition and 105 business plan changes in 2002. Reserve reduced $9M via goodwill adjustment; $41M paid out during 2002.
2002-12-31restructuringin_progress4792000-10-20United StatesGenerationrestructuring_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		479 former Unicom positions terminated in 2002 as part of 876 total program. Also 75 normal attrition and 49 business plan changes in 2002. Reserve reduced $2M via goodwill adjustment; $22M paid out during 2002.
2002-12-31restructuringin_progress8582000-10-20United StatesPECO, Generation, Enterprises and corporate supportrestructuring_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Cumulative through fiscal year-end: 858 of 960 total merger-related positions eliminated as of 2002-12-31 (224 Generation, 195 PECO, 439 Enterprises/corporate). Remaining 102: 58 normal attrition, 44 business plan changes. May overlap with ComEd and Generation registrant disclosures.
2002-12-31restructuringcompleted5132000-10-202002-12-31United StatesComEdrestructuring_footnote
f5-10k / Qwen3.6-27B-Q8_0		Employees terminated in 2002 as part of the 2000 Merger separation plan.
2002-12-31restructuringcompleted4792000-10-202002-12-31United StatesGenerationrestructuring_footnote
f5-10k / Qwen3.6-27B-Q8_0		Employees terminated in 2002 as part of the 2000 Merger separation plan.
2002-12-31restructuringcompleted1952000-10-202002-12-31United StatesPECOrestructuring_footnote
f5-10k / Qwen3.6-27B-Q8_0		Employees terminated in 2002 as part of the 2000 Merger separation plan.
2002-12-31restructuringcompleted4392000-10-202002-12-31United StatesEnterprises and Corporate Supportrestructuring_footnote
f5-10k / Qwen3.6-27B-Q8_0		Employees terminated in 2002 as part of the 2000 Merger separation plan.
2002-09-30restructuringin_progress1722000-10-202002-12-31United StatesPECO Energy Delivery, Generation, Enterprises and Corporate Supportrestructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		PECO merger-related position eliminations. Total program of 960 positions; 788 eliminated as of 2002-09-30; 172 remaining. Breakdown of total: 274 generation, 230 PECO energy delivery, remainder enterprises/corporate. Remaining count not broken out by function. Employee severance and other benefits reserve of $7 million on Exelon balance sheet as of 2002-09-30 ($2M PECO, $3M Generation).
2002-09-30restructuringin_progress282000-10-202002-12-31United StatesCorporate & Otherrestructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Unicom merger-related position eliminations remaining as of 2002-09-30. Total Unicom program estimated at 2,393 positions after 2001 adjustments; 2,041 eliminated through 2002-09-30 (including normal attrition and business plan changes).
2002-09-30restructuringin_progress2842000-10-202002-12-31United StatesComEdrestructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Unicom merger-related position eliminations remaining at ComEd as of 2002-09-30. ComEd employee severance and other benefits reserve of $24 million as of 2002-09-30.
2002-09-30restructuringin_progress402000-10-202002-12-31United StatesGenerationrestructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Unicom merger-related position eliminations remaining at Generation as of 2002-09-30. Generation employee severance and other benefits reserve of $9 million as of 2002-09-30.
2002-09-30otherannounced2002-08-15United States — PennsylvaniaPECO Energy Deliveryother
f5-10q / MiMo-V2.6-Flash-fp8-HTML		IBEW filed a petition to conduct a unionization vote among certain PECO employees. No outcome or affected-employee count disclosed.
2002-09-30restructuringin_progress712000-10-202002-12-31United StatesCorporate, ComEd, Generation, Enterprisesrestructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Terminated employees (July 2002-September 2002) related to the 2000 Unicom merger. Total estimated positions to be eliminated: 2,393. Remaining positions to be eliminated by end of 2002: 352.
2002-09-30restructuringin_progress1812000-10-202002-12-31United StatesGenerationrestructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Positions eliminated as of September 30, 2002, related to the 2000 Unicom merger.
2002-09-30restructuringin_progress1622000-10-202002-12-31United StatesPECO Energy Deliveryrestructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Positions eliminated as of September 30, 2002, related to the 2000 Unicom merger.
2002-09-30otherannounced2002-08-15PennsylvaniaPECO Energy Companyother
f5-10q / Qwen3.6-27B-Q8_0		International Brotherhood of Electrical Workers filed a petition to conduct a unionization vote of certain of PECO's employees.
2002-06-30restructuringin_progress3,3002000-10-202002-12-31United StatesCorporate / cross-segment (Unicom and PECO legacy positions)USD 191 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Approximately 3,300 positions identified for elimination from the 2000 PECO/Unicom merger; 2,255 terminated as of 2002-06-30 (510 in Q2 2002). Remaining reserve $66M at quarter-end. Reserve includes relocation and actuarially determined pension/postretirement costs. Unicom portion recorded in purchase accounting; PECO portion charged to expense.
2002-06-30restructuringin_progress5102002-12-31restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		510 employees terminated in Q2 2002 as part of ongoing merger integration. Remaining positions expected to be eliminated by end of 2002.
2002-06-30restructuringcompleted2,255restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Cumulative total of 2,255 employees terminated as of June 30, 2002, resulting from the merger.
2002-03-31restructuringin_progress2842000-10-202002-12-31United StatesCorporate / Enterprise-widerestructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Ongoing merger restructuring: ~3,300 positions identified for elimination; 1,745 terminated cumulatively as of 2002-03-31, of which 284 in Q1 2002. Remaining positions expected eliminated by end of 2002. Severance and relocation reserve was $99M at 2002-03-31; $15M paid to employees during Q1 2002.
2002-03-31restructuringin_progress2842000-10-202002-12-31United StatesCorporate and Business Segmentsrestructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		284 employees terminated in Q1 2002 as part of Unicom/PECO merger integration. Total positions identified for elimination: 3,300. Remaining positions expected to be eliminated by end of 2002.
2001-12-31restructuringin_progress1,2282000-10-202002-12-31United StatesComEdUSD 177 (millions)restructuring_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Approximately 1,228 positions identified for elimination due to Merger; 399 terminated as of 2001-12-31; remaining expected by end of 2002. Employee costs: $85M from pension/OPEB plans, $92M from general corporate funds.
2001-12-31restructuringin_progress6422000-10-202002-12-31United StatesPECOrestructuring_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		642 eligible PECO employees expected to be involuntarily terminated before December 2002 under Exelon's Merger Separation Plan; includes estimated severance payments and pension/OPEB benefits.
2001-12-31restructuringcompleted1,2282000-10-202002-12-31United StatesComEdUSD 327 (millions)restructuring_footnote
f5-10k / Qwen3.6-27B-Q8_0		Approximately 1,228 ComEd positions identified for elimination as a result of the Merger. Total employee cost liability of $327 million. 399 employees terminated as of Dec 31, 2001; remaining expected to be eliminated by end of 2002.
2001-12-31restructuringcompleted6422000-10-202002-12-31United StatesPECOUSD 116 (millions)MD&A
f5-10k / Qwen3.6-27B-Q8_0		642 eligible PECO employees expected to be involuntarily terminated before December 2002 due to integration activities. Employee costs of $116 million.
2001-09-30restructuringin_progress3,5002000-10-202002-12-31United StatesCorporate / Unicom and PECOUSD 153 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Merger-related severance program; 1,081 employees terminated as of 2001-09-30 (271 in Q3 2001); 2,419 remaining positions expected eliminated by end of 2002. Severance reserve $153M at quarter-end. Q3 2001 adjustments included $55M increase for additional Unicom positions and $31M increase for additional PECO positions.
2001-09-30restructuringcompleted5,5002001-01-012001-01-01United StatesComEd — transferred to Generation, BSC, Enterprisesrestructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Internal transfer of approximately 5,500 ComEd employees to Generation, BSC and Enterprises as part of January 2001 corporate restructuring; pension and OPEB obligations reduced by $143M and $172M respectively.
2001-09-30restructuringcompleted3,2002001-01-012001-01-01United StatesPECO — transferred to Generation, BSC, Enterprisesrestructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Internal transfer of approximately 3,200 PECO employees to Generation, BSC and Enterprises as part of January 2001 corporate restructuring; pension and OPEB obligations reduced by $96M and $284M respectively.
2001-09-30restructuringin_progress3,5002000-10-202002-12-31United StatesCorporate / All SegmentsUSD 204 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Approximately 3,500 Unicom and PECO positions identified for elimination due to merger. 1,081 employees terminated as of Sept 30, 2001 (271 in Q3). Remaining 2,419 expected to be eliminated by end of 2002. Total employee severance reserve of $204 million associated with Unicom positions funded from general corporate funds.
2001-09-30restructuringin_progress2000-10-202002-12-31United StatesCorporate / All SegmentsUSD 297 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Total of $297 million of employee costs associated with the merger expected to be funded from pension and postretirement benefit plans. This figure is distinct from the $204 million general corporate severance reserve.
2001-06-30restructuringin_progress2,9002000-10-202002-12-31United StatesUnicom and PECO corporate positionsUSD 109 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Approximately 2,900 positions identified for elimination as a result of the merger; 619 eliminated in Q1 2001 and 191 in Q2 2001; remaining ~2,090 expected by end of 2002. Severance reserve declined from $149M at merger date to $109M at June 30, 2001.
2001-06-30restructuringcompleted5,5002001-01-012001-01-01United StatesComEd — transferred to Generation, BSC, and Enterprisesrestructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Approximately 5,500 ComEd employees transferred as part of the January 2001 corporate restructuring separating generation from regulated delivery. Pension and OPEB obligations reduced by $143M and $172M respectively.
2001-06-30restructuringcompleted3,2002001-01-012001-01-01United StatesPECO — transferred to Generation, BSC, and Enterprisesrestructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Approximately 3,200 PECO employees transferred as part of the January 2001 corporate restructuring. Pension and OPEB obligations reduced by $70M and $271M respectively.
2001-06-30othercompleted7,4002001-04-202004-03-31United StatesCollective bargaining unit — Local 15, International Brotherhood of Electrical Workersother
f5-10q / MiMo-V2.6-Flash-fp8-HTML		New three-year collective bargaining agreement signed April 20, 2001, effective April 1, 2001 through March 31, 2004; ratified by Local 15 membership June 8, 2001. Prior agreement had been scheduled to expire March 31, 2001.
2001-06-30restructuringin_progress8102000-10-202002-12-31United StatesCorporate / All SegmentsUSD 109 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Approximately 2,900 positions identified for elimination. 619 eliminated in Q1 2001, 191 in Q2 2001. Remaining ~2,090 expected by end of 2002. Reserve balance $109M.
2001-06-30othercompleted7,4002001-04-202001-04-20United StatesEnergy Deliveryother
f5-10q / Qwen3.6-27B-Q8_0		New three-year collective bargaining agreement signed with Local 15, ratified June 8, 2001.
2001-03-31restructuringin_progress2,9002000-10-20United StatesCorporate / All segmentsUSD 25 (millions)restructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Merger-related position eliminations; 619 employees terminated during Q1 2001 ($25M severance deducted), 2,281 remaining at March 31, 2001. Total program cost: $282M funded from pension/postretirement plans and $149M from general corporate funds.
2001-03-31restructuringcompleted5,5002001-01-012001-01-01United States — Northern IllinoisComEd — transferred to Generation, BSC, and Enterprisesrestructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Approximately 5,500 ComEd employees transferred to Generation, BSC and Enterprises as part of Exelon's corporate restructuring effective January 1, 2001. Pension obligations reduced by $143M and non-pension postretirement obligations by $172M.
2001-03-31restructuringcompleted3,2002001-01-012001-01-01United States — Southeastern PennsylvaniaPECO — transferred to Generation, BSC, and Enterprisesrestructuring_footnote
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Approximately 3,200 PECO employees transferred to Generation, BSC and Enterprises as part of Exelon's corporate restructuring effective January 1, 2001. Pension obligations reduced by $70M and non-pension postretirement obligations by $271M.
2001-03-31otherannounced7,4002001-04-202001-06-08United StatesCollective bargaining unit — Local 15, IBEWother
f5-10q / MiMo-V2.6-Flash-fp8-HTML		New three-year collective bargaining agreement signed April 20, 2001, effective April 1, 2001 through March 31, 2004, covering approximately 7,400 employees. Ratification by Local 15 membership expected by June 8, 2001.
2001-03-31restructuringin_progress2,2812000-10-20United StatesCorporate / Merger IntegrationUSD 119 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Balance of reserve for employee severance associated with merger. 619 terminations occurred during the quarter, reducing the remaining affected count from 2,900 to 2,281.
2001-03-31othercompleted7,4002001-04-202001-04-20United StatesOperationsother
f5-10q / Qwen3.6-27B-Q8_0		Exelon and Local 15 signed a new three-year collective bargaining agreement effective April 1, 2001 through March 31, 2004.
2000-12-31restructuringin_progress6422000-10-202002-10-20United States — PennsylvaniaPECO Energy CompanyUSD 116 (millions)restructuring_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Employee costs under Exelon Merger Separation Plan; funded from pension and postretirement benefit plans; positions expected to be eliminated before October 2002
2000-12-31restructuringin_progress2,3002000-10-202002-10-20United States — IllinoisCommonwealth Edison CompanyUSD 307 (millions)restructuring_footnote
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Exit cost liability recorded in purchase price allocation; $67M charged to expense in 2000; $144M reserve balance at Dec 31, 2000; $167M expected funded from pension/postretirement plans, $181M from corporate funds
2000-12-31restructuringannounced2001-01-01United StatesExelon Corporation — corporate restructuringsubsequent_events
f5-10k / MiMo-V2.6-Flash-fp8-HTML		January 2001 restructuring separated generation and competitive businesses from regulated energy delivery; non-regulated operations and related assets/liabilities transferred to separate Exelon subsidiaries; no headcount reduction disclosed
2000-12-31restructuringcompleted6422000-10-202002-10-01PECO Energy CompanyCorporate / IntegrationUSD 116 (millions)MD&A
f5-10k / Qwen3.6-27B-Q8_0		Employee costs under Exelon's Merger Separation Plan for PECO employees expected to be involuntarily terminated before October 2002.
2000-12-31restructuringcompleted2,3002000-10-202002-10-01Commonwealth Edison CompanyCorporate / IntegrationUSD 307 (millions)restructuring_footnote
f5-10k / Qwen3.6-27B-Q8_0		Liability for exit costs including employee severance, pension/postretirement costs, and relocation benefits. Positions identified for elimination as a result of the Merger.
2000-12-31othercompleted12000-12-012000-12-01United StatesExecutive — Former EVP, UnicomUSD 2,208,750 (dollars)Item_1_Business
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Paul A. Elbert resigned all offices on 2000-12-01, a qualifying termination under his change-in-control severance agreement. Severance equaled three times base salary plus target incentive; he also received a $2,677,493 discounted lump-sum SERP retirement payment, a $2,154,968 excise-tax gross-up, three years of welfare benefits, accelerated option vesting and lapse of restricted-stock restrictions.
2000-12-31othercompleted2000-10-202000-10-20United StatesEnterprise — PECO Energy / Unicom (ComEd) combination forming Exelon CorporationItem_1_Business
f5-10k / MiMo-V2.6-Flash-fp8-HTML		Unicom Corporation and PECO Energy Company combined to form Exelon Corporation effective 2000-10-20; PECO and ComEd became Exelon subsidiaries and their boards were reconstituted with Exelon/ComEd/PECO executives. No employee headcount added, eliminated, or retained in connection with the combination is disclosed in this filing.
2000-09-30voluntary_separationcompleted1,1571998-12-312000-06-30United StatesPECO Energy CompanyUSD 125 (millions)other
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Program terminated June 30, 2000; charge incurred Dec 31, 1998; $74M net of tax; funded through Service Annuity Plan assets
2000-09-30restructuringannounced2000-10-20United StatesPECO Energy Company / Exelon CorporationMD&A
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Merger-related severance, stock compensation, and settlement charges expected in Q4 2000; aggregate impact not estimable as of Sept 30, 2000
2000-09-30voluntary_separationin_progressUnited StatesComEd (Unicom Corporation)USD 33 (millions)other
f5-10q / MiMo-V2.6-Flash-fp8-HTML		Voluntary separation offers to certain ComEd employees; $33M in Q3 2000 and $47M YTD 2000; headcount not disclosed
2000-09-30voluntary_separationcompleted1,1571998-12-312000-06-30PennsylvaniaCorporate / GeneralUSD 125 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Early Retirement and Separation Program terminated on June 30, 2000. Charge incurred Dec 31, 1998.
2000-09-30restructuringcompleted1,7301999-12-151999-12-15IllinoisFossil GenerationUSD 112 (millions)restructuring_footnote
f5-10q / Qwen3.6-27B-Q8_0		Positions eliminated upon completion of fossil plant sale to EME. Includes pension/post-retirement curtailment and separation payments.