0000001 - Document - Cover Page link:presentationLink link:calculationLink link:definitionLink 0000002 - Document - Auditor Information link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - Consolidated Statements of Operations and Comprehensive Income - Exelon link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - Consolidated Statements of Operations and Comprehensive Income - Exelon link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - Consolidated Statements of Operations and Comprehensive Income - ComEd link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - Consolidated Statements of Operations and Comprehensive Income - PECO link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - Statements of Operations and Comprehensive Income - BGE link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - Consolidated Statements of Operations and Comprehensive Income - 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Statement - Consolidated Balance Sheets - PECO link:presentationLink link:calculationLink link:definitionLink 9952172 - Statement - Consolidated Balance Sheets - PECO (Parentheticals) link:presentationLink link:calculationLink link:definitionLink 9952173 - Statement - Balance Sheets - BGE link:presentationLink link:calculationLink link:definitionLink 9952174 - Statement - Balance Sheets - BGE (Parentheticals) link:presentationLink link:calculationLink link:definitionLink 9952175 - Statement - Consolidated Balance Sheets - PHI link:presentationLink link:calculationLink link:definitionLink 9952176 - Statement - Consolidated Balance Sheets - PHI (Parentheticals) link:presentationLink link:calculationLink link:definitionLink 9952177 - Statement - Balance Sheets - Pepco link:presentationLink link:calculationLink link:definitionLink 9952178 - Statement - Balance Sheets - Pepco (Parentheticals) link:presentationLink link:calculationLink link:definitionLink 9952179 - Statement - Balance Sheets - 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Disclosure - Income Taxes (All Registrants) link:presentationLink link:calculationLink link:definitionLink 9952204 - Disclosure - Retirement Benefits (All Registrants) link:presentationLink link:calculationLink link:definitionLink 9952205 - Disclosure - Derivative Financial Instruments (All Registrants) link:presentationLink link:calculationLink link:definitionLink 9952206 - Disclosure - Debt and Credit Agreements (All Registrants) link:presentationLink link:calculationLink link:definitionLink 9952207 - Disclosure - Fair Value of Financial Assets and Liabilities (All Registrants) link:presentationLink link:calculationLink link:definitionLink 9952208 - Disclosure - Commitments and Contingencies (All Registrants) link:presentationLink link:calculationLink link:definitionLink 9952209 - Disclosure - Shareholders' Equity (All Registrants) link:presentationLink link:calculationLink link:definitionLink 9952210 - Disclosure - Stock-Based Compensation Plans (All Registrants) link:presentationLink link:calculationLink link:definitionLink 9952211 - Disclosure - Changes in Accumulated Other Comprehensive Income (Exelon) link:presentationLink link:calculationLink link:definitionLink 9952212 - Disclosure - Supplemental Financial Information (All Registrants) link:presentationLink link:calculationLink link:definitionLink 9952213 - Disclosure - Related Party Transactions (All Registrants) link:presentationLink link:calculationLink link:definitionLink 9952214 - Disclosure - Subsequent Events link:presentationLink link:calculationLink link:definitionLink 9952215 - Disclosure - Schedule I - Condensed Financial Information of Parent (Exelon Corporate) link:presentationLink link:calculationLink link:definitionLink 9952216 - Disclosure - Schedule II - Valuation and Qualifying Accounts link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - Significant Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - Regulatory Matters (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - 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Energy Efficiency Formula Rate (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - Regulatory Matters - Schedule of Regulatory Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - Regulatory Matters - Schedule of Regulatory Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - Regulatory Matters - Description of Regulatory Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - Regulatory Matters - Capitalized Ratemaking Amounts Not Recognized (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - Revenue from Contracts with Customers (All Registrants) - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - Revenue from Contracts with Customers (All Registrants) - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - 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Jointly Owned Electric Utility Plant - Ownership Interests in Jointly Owned Electric Plants and Transmission Facilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955555 - Disclosure - Asset Retirement Obligations - Non-Nuclear Asset Retirement Obligations Rollforward (Details) link:presentationLink link:calculationLink link:definitionLink 9955556 - Disclosure - Leases - Types of Leases (Details) link:presentationLink link:calculationLink link:definitionLink 9955557 - Disclosure - Leases - Components of Lease Cost (Details) link:presentationLink link:calculationLink link:definitionLink 9955558 - Disclosure - Leases - Supplemental Balance Sheet Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955559 - Disclosure - Leases - Lessee Future Minimum Operating Lease Maturity Payments (Details) link:presentationLink link:calculationLink link:definitionLink 9955559 - Disclosure - Leases - Lessee Future Minimum Operating Lease Maturity Payments (Details) link:presentationLink link:calculationLink link:definitionLink 9955560 - 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Disclosure - Intangible Assets - Schedule of Other Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955568 - Disclosure - Intangible Assets - Summary of Amortization Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955569 - Disclosure - Income Taxes - Components of Income Tax Expense (Benefit) from Continuing Operations (Details) link:presentationLink link:calculationLink link:definitionLink 9955570 - Disclosure - Income Taxes - Reconciliation to Effective Tax Rate (Details) link:presentationLink link:calculationLink link:definitionLink 9955571 - Disclosure - Income Taxes - Tax Effects of Temporary Differences and Carryforwards (Details) link:presentationLink link:calculationLink link:definitionLink 9955572 - Disclosure - Income Taxes - Schedule of Carryforwards and Corresponding Valuation Allowances (Details) link:presentationLink link:calculationLink link:definitionLink 9955573 - Disclosure - Income Taxes - Rollforward of Unrecognized Tax Benefits (Details) link:presentationLink link:calculationLink link:definitionLink 9955574 - Disclosure - Income Taxes - Recognition of Unrecognized Tax Benefits (Details) link:presentationLink link:calculationLink link:definitionLink 9955575 - Disclosure - Income Taxes - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955576 - Disclosure - Income Taxes - Summary of Interest and Penalties Receivable (Payable) (Details) link:presentationLink link:calculationLink link:definitionLink 9955577 - Disclosure - Income Taxes - Tax Payments (Refunds) by Major Jurisdiction (Details) link:presentationLink link:calculationLink link:definitionLink 9955578 - Disclosure - Income Taxes - Tax Years Open to Assessment (Details) link:presentationLink link:calculationLink link:definitionLink 9955579 - Disclosure - Income Taxes - Long-Term Marginal State Income Tax Rate (Details) link:presentationLink link:calculationLink link:definitionLink 9955580 - Disclosure - Income Taxes - Allocation of Tax Benefits (Details) link:presentationLink link:calculationLink link:definitionLink 9955581 - 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Estimated Future Benefit Payments (Details) link:presentationLink link:calculationLink link:definitionLink 9955593 - Disclosure - Retirement Benefits - Pension and Other Postretirement Benefit Plan Target Asset Allocations (Details) link:presentationLink link:calculationLink link:definitionLink 9955594 - Disclosure - Retirement Benefits - Fair Value Measurements of Pension and Postretirement Benefit Plan Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955595 - Disclosure - Retirement Benefits - Reconciliation of Level 3 Assets and Liabilities measured at Fair Value for Pension and Other Postretirement Benefit Plans (Details) link:presentationLink link:calculationLink link:definitionLink 9955596 - Disclosure - Retirement Benefits - Defined Contribution Savings Plan (Details) link:presentationLink link:calculationLink link:definitionLink 9955597 - Disclosure - Derivative Financial Instruments - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955598 - Disclosure - Derivative Financial Instruments - Summary of Derivative Hedging Instruments (Details) link:presentationLink link:calculationLink link:definitionLink 9955599 - Disclosure - Derivative Financial Instruments - Summary of Interest Rate Hedge Balances (Details) link:presentationLink link:calculationLink link:definitionLink 9955600 - Disclosure - Derivative Financial Instruments - Summary of Notional Amounts of Outstanding Derivative Positions (Details) link:presentationLink link:calculationLink link:definitionLink 9955601 - Disclosure - Derivative Financial Instruments - Summary of Economic Hedges (Details) link:presentationLink link:calculationLink link:definitionLink 9955602 - Disclosure - Derivative Financial Instruments - Summary of Counterparty Collateral (Details) link:presentationLink link:calculationLink link:definitionLink 9955603 - Disclosure - Debt and Credit Agreements - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955604 - Disclosure - Debt and Credit Agreements - Commercial Paper Borrowings (Details) link:presentationLink link:calculationLink link:definitionLink 9955605 - Disclosure - Debt and Credit Agreements - Summary of Bank Commitments, Credit Facility Borrowings and Available Capacity (Details) link:presentationLink link:calculationLink link:definitionLink 9955606 - Disclosure - Debt and Credit Agreements - Summary of Credit Facility Agreements at Community Banks (Details) link:presentationLink link:calculationLink link:definitionLink 9955607 - Disclosure - Debt and Credit Agreements - Summary of Revolving Credit Agreements (Details) link:presentationLink link:calculationLink link:definitionLink 9955608 - Disclosure - Debt and Credit Agreements - Summary of Basis Spread (Details) link:presentationLink link:calculationLink link:definitionLink 9955609 - Disclosure - Debt and Credit Agreements - Summary of Outstanding Long-term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9955610 - 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Disclosure - Related Party Transactions - Long Term Debt to Financing Trusts (Details) link:presentationLink link:calculationLink link:definitionLink 9955642 - Disclosure - Related-Party Transactions (All Registrants) (Details) link:presentationLink link:calculationLink link:definitionLink 9955643 - Disclosure - Schedule I - Condensed Financial Information of Parent (Exelon Corporate) - Condensed Statements of Operations and Other Comprehensive Income (Details) link:presentationLink link:calculationLink link:definitionLink 9955644 - Disclosure - Schedule I - Condensed Financial Information of Parent (Exelon Corporate) - Condensed Statements of Cash Flows (Details) link:presentationLink link:calculationLink link:definitionLink 9955645 - Disclosure - Schedule I - Condensed Financial Information of Parent (Exelon Corporate) - Condensed Balance Sheet (Details) link:presentationLink link:calculationLink link:definitionLink 9955646 - Disclosure - Schedule I - Condensed Financial Information of Parent (Exelon Corporate) - 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Disclosure - Schedule II - Valuation and Qualifying Accounts Schedule (Details) link:presentationLink link:calculationLink link:definitionLink