0000001 - Document - Cover Page link:presentationLink link:calculationLink link:definitionLink 0000002 - Document - Auditor Information link:presentationLink link:calculationLink link:definitionLink 0000003 - Statement - Consolidated Statements of Operations and Comprehensive Income link:presentationLink link:calculationLink link:definitionLink 0000004 - Statement - Consolidated Statements of Cash Flows link:presentationLink link:calculationLink link:definitionLink 0000005 - Statement - Consolidated Balance Sheets link:presentationLink link:calculationLink link:definitionLink 0000006 - Statement - Consolidated Statement of Changes in Shareholders Equity link:presentationLink link:calculationLink link:definitionLink 0000007 - Disclosure - Significant Accounting Policies (All Registrants) link:presentationLink link:calculationLink link:definitionLink 0000008 - Disclosure - Discontinued Operations (Exelon) link:presentationLink link:calculationLink link:definitionLink 0000009 - Disclosure - Regulatory Matters (All Registrants) link:presentationLink link:calculationLink link:definitionLink 0000010 - Disclosure - Revenue from Contracts with Customers (All Registrants) link:presentationLink link:calculationLink link:definitionLink 0000011 - Disclosure - Segment Information (All Registrants) link:presentationLink link:calculationLink link:definitionLink 0000012 - Disclosure - Accounts Receivable (All Registrants) link:presentationLink link:calculationLink link:definitionLink 0000013 - Disclosure - Property, Plant and Equipment (All Registrants) link:presentationLink link:calculationLink link:definitionLink 0000014 - Disclosure - Jointly Owned Electric Utility Plant (Exelon, PECO, DPL and ACE) link:presentationLink link:calculationLink link:definitionLink 0000015 - Disclosure - Asset Retirement Obligations (All Registrants) link:presentationLink link:calculationLink link:definitionLink 0000016 - Disclosure - Leases (All Registrants) link:presentationLink link:calculationLink link:definitionLink 0000017 - Disclosure - Asset Impairments (Exelon and BGE) link:presentationLink link:calculationLink link:definitionLink 0000018 - Disclosure - Intangible Assets (Exelon, ComEd, PHI, Pepco, DPL, and ACE) link:presentationLink link:calculationLink link:definitionLink 0000019 - Disclosure - Income Taxes (All Registrants) link:presentationLink link:calculationLink link:definitionLink 0000020 - Disclosure - Retirement Benefits (All Registrants) link:presentationLink link:calculationLink link:definitionLink 0000021 - Disclosure - Derivative Financial Instruments (All Registrants) link:presentationLink link:calculationLink link:definitionLink 0000022 - Disclosure - Debt and Credit Agreements (All Registrants) link:presentationLink link:calculationLink link:definitionLink 0000023 - Disclosure - Fair Value of Financial Assets and Liabilities (All Registrants) link:presentationLink link:calculationLink link:definitionLink 0000024 - Disclosure - Commitments and Contingencies (All Registrants) link:presentationLink link:calculationLink link:definitionLink 0000025 - Disclosure - Severance (All Registrants) link:presentationLink link:calculationLink link:definitionLink 0000026 - Disclosure - Shareholders' Equity (All Registrants) link:presentationLink link:calculationLink link:definitionLink 0000027 - Disclosure - Stock-Based Compensation Plans Stock-Based Compensation Plans (All Registrants) link:presentationLink link:calculationLink link:definitionLink 0000028 - Disclosure - Changes in Accumulated Other Comprehensive Income (Exelon) link:presentationLink link:calculationLink link:definitionLink 0000029 - Disclosure - Supplemental Financial Information (All Registrants) link:presentationLink link:calculationLink link:definitionLink 0000030 - Disclosure - Related Party Transactions (All Registrants) link:presentationLink link:calculationLink link:definitionLink 0000031 - Disclosure - Quarterly Data (Unaudited) (All Registrants) link:presentationLink link:calculationLink link:definitionLink 0000032 - Disclosure - Subsequent Events (Exelon and Generation) link:presentationLink link:calculationLink link:definitionLink 0000033 - Disclosure - Schedule I - Condensed Financial Information of Parent (Exelon Corporate) link:presentationLink link:calculationLink link:definitionLink 0000034 - Disclosure - Schedule II - Valuation and Qualifying Accounts link:presentationLink link:calculationLink link:definitionLink 0000035 - Disclosure - Significant Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 0000036 - Disclosure - Discontinued Operations (Tables) link:presentationLink link:calculationLink link:definitionLink 0000037 - Disclosure - Regulatory Matters (Tables) link:presentationLink link:calculationLink link:definitionLink 0000038 - Disclosure - Revenue from Contracts with Customers (Tables) link:presentationLink link:calculationLink link:definitionLink 0000039 - Disclosure - Segment Information (Tables) link:presentationLink link:calculationLink link:definitionLink 0000040 - Disclosure - Accounts Receivable (Tables) link:presentationLink link:calculationLink link:definitionLink 0000041 - Disclosure - Property, Plant and Equipment (Tables) link:presentationLink link:calculationLink link:definitionLink 0000042 - Disclosure - Jointly Owned Electric Utility Plant (Tables) link:presentationLink link:calculationLink link:definitionLink 0000043 - Disclosure - Asset Retirement Obligations (Tables) link:presentationLink link:calculationLink link:definitionLink 0000044 - Disclosure - Leases (Tables) link:presentationLink link:calculationLink link:definitionLink 0000045 - Disclosure - Asset Impairments (Tables) link:presentationLink link:calculationLink link:definitionLink 0000046 - Disclosure - Intangible Assets (Tables) link:presentationLink link:calculationLink link:definitionLink 0000047 - Disclosure - Income Taxes (Tables) link:presentationLink link:calculationLink link:definitionLink 0000048 - Disclosure - Retirement Benefits (Tables) link:presentationLink link:calculationLink link:definitionLink 0000049 - Disclosure - Derivative Financial Instruments (Tables) link:presentationLink link:calculationLink link:definitionLink 0000050 - Disclosure - Debt and Credit Agreements (Tables) link:presentationLink link:calculationLink link:definitionLink 0000051 - Disclosure - Fair Value of Financial Assets and Liabilities (Tables) link:presentationLink link:calculationLink link:definitionLink 0000052 - Disclosure - Commitments and Contingencies (Tables) link:presentationLink link:calculationLink link:definitionLink 0000053 - Disclosure - Severance (Tables) link:presentationLink link:calculationLink link:definitionLink 0000054 - Disclosure - Shareholders' Equity (Tables) link:presentationLink link:calculationLink link:definitionLink 0000055 - Disclosure - Stock-Based Compensation Plans Stock-Based Compensation Plans (Tables) link:presentationLink link:calculationLink link:definitionLink 0000056 - Disclosure - Changes in Accumulated Other Comprehensive Income (Tables) link:presentationLink link:calculationLink link:definitionLink 0000057 - Disclosure - Supplemental Financial Information (Tables) link:presentationLink link:calculationLink link:definitionLink 0000058 - Disclosure - Related Party Transactions (Tables) link:presentationLink link:calculationLink link:definitionLink 0000059 - Disclosure - Quarterly Data (Unaudited) (Tables) link:presentationLink link:calculationLink link:definitionLink 0000060 - Disclosure - Significant Accounting Policies - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000061 - Disclosure - Discontinued Operations and Disposal Groups (Details) link:presentationLink link:calculationLink link:definitionLink 0000062 - Disclosure - Discontinued Operations (Details) - Income Statement link:presentationLink link:calculationLink link:definitionLink 0000063 - Disclosure - Discontinued Operations (Details) - Balance Sheet link:presentationLink link:calculationLink link:definitionLink 0000064 - Disclosure - Discontinued Operations (Details) - Cash Flow link:presentationLink link:calculationLink link:definitionLink 0000065 - Disclosure - Regulatory Matters- Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000066 - Disclosure - Regulatory Matters - Schedule of Completed Rate Cases (Details) link:presentationLink link:calculationLink link:definitionLink 0000067 - Disclosure - Regulatory Matters - Schedule of Pending Rate Cases (Details) link:presentationLink link:calculationLink link:definitionLink 0000068 - Disclosure - Regulatory Matters - Annual Electric Transmission Filings (Details) link:presentationLink link:calculationLink link:definitionLink 0000069 - Disclosure - Regulatory Matters - Energy Efficiency Formula Rate (Details) link:presentationLink link:calculationLink link:definitionLink 0000070 - Disclosure - Regulatory Matters - Schedule of Regulatory Assets (Details) link:presentationLink link:calculationLink link:definitionLink 0000071 - Disclosure - Regulatory Matters - Schedule of Regulatory Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 0000072 - Disclosure - Regulatory Matters - Capitalized Ratemaking Amounts Not Recognized (Details) link:presentationLink link:calculationLink link:definitionLink 0000073 - Disclosure - Revenue from Contracts with Customers - Contract Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 0000074 - Disclosure - Revenue from Contracts with Customers - Performance Obligations (Details) link:presentationLink link:calculationLink link:definitionLink 0000074 - Disclosure - Revenue from Contracts with Customers - Performance Obligations (Details) link:presentationLink link:calculationLink link:definitionLink 0000075 - Disclosure - Segment Information - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000076 - Disclosure - Segment Information - Reconciliation to Consolidated Financial Statements (Details) link:presentationLink link:calculationLink link:definitionLink 0000077 - Disclosure - Segment Information - Electric and Gas Revenue by Customer Class (Details) link:presentationLink link:calculationLink link:definitionLink 0000078 - Disclosure - Accounts Receivable - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000079 - Disclosure - Accounts Receivable - Allowance for Credit Losses Rollforward (Details) link:presentationLink link:calculationLink link:definitionLink 0000080 - Disclosure - Accounts Receivable - Unbilled Customer Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 0000081 - Disclosure - Accounts Receivable - Purchases and Sales of Accounts Receivable (Detail) link:presentationLink link:calculationLink link:definitionLink 0000082 - Disclosure - Property, Plant and Equipment - Summary of Property, Plant and Equipment (Details) link:presentationLink link:calculationLink link:definitionLink 0000083 - Disclosure - Property, Plant and Equipment - Annual Depreciation Provisions as Percentage of Average Service Life (Details) link:presentationLink link:calculationLink link:definitionLink 0000084 - Disclosure - Property, Plant and Equipment - Summary of Capitalized Interest and AFUDC (Details) link:presentationLink link:calculationLink link:definitionLink 0000085 - Disclosure - Jointly Owned Electric Utility Plant - Ownership Interests in Jointly Owned Electric Plants and Transmission Facilities (Details) link:presentationLink link:calculationLink link:definitionLink 0000086 - Disclosure - Asset Retirement Obligations - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000087 - Disclosure - Asset Retirement Obligations - Nuclear Decommissioning Asset Retirement Obligation Rollforward (Details) link:presentationLink link:calculationLink link:definitionLink 0000088 - Disclosure - Asset Retirement Obligations - Non-Nuclear Asset Retirement Obligations Rollforward (Details) link:presentationLink link:calculationLink link:definitionLink 0000089 - Disclosure - Lessee - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000090 - Disclosure - Lessee - Components of Lease Cost (Details) link:presentationLink link:calculationLink link:definitionLink 0000091 - Disclosure - Lessee - Supplemental Balance Sheet Information (Details) link:presentationLink link:calculationLink link:definitionLink 0000092 - Disclosure - Lessee - Lessee Future Minimum Operating Lease Maturity Payments (Details) link:presentationLink link:calculationLink link:definitionLink 0000093 - Disclosure - Lessee - Supplemental Cash Flow Information Related to Leases (Details) link:presentationLink link:calculationLink link:definitionLink 0000094 - Disclosure - Lessor - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000095 - Disclosure - Lessor - Components of Operating Lease Income (Details) link:presentationLink link:calculationLink link:definitionLink 0000096 - Disclosure - Lessor - Operating Lease, Payments, Fiscal Year Maturity (Details) link:presentationLink link:calculationLink link:definitionLink 0000097 - Disclosure - Asset Impairments - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000098 - Disclosure - Intangible Assets - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000099 - Disclosure - Intangible Assets - Schedule of Goodwill (Details) link:presentationLink link:calculationLink link:definitionLink 0000100 - Disclosure - Intangible Assets - Schedule of Other Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 0000101 - Disclosure - Intangible Assets Intangible Assets - Summary of Amortization Expense (Details) link:presentationLink link:calculationLink link:definitionLink 0000102 - Disclosure - Intangible Assets Intangible Assets - Schedule of Finite-Lived Intangible Assets, Future Amortization Expense (Details) link:presentationLink link:calculationLink link:definitionLink 0000103 - Disclosure - Income Taxes - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000104 - Disclosure - Income Taxes - Components of Income Tax Expense (Benefit) from Continuing Operations (Details) link:presentationLink link:calculationLink link:definitionLink 0000105 - Disclosure - Income Taxes - Reconciliation to Effective Tax Rate (Details) link:presentationLink link:calculationLink link:definitionLink 0000106 - Disclosure - Income Taxes - Tax Effects of Temporary Differences and Carryforwards (Details) link:presentationLink link:calculationLink link:definitionLink 0000107 - Disclosure - Income Taxes - Schedule of Carryforwards and Corresponding Valuation Allowances (Details) link:presentationLink link:calculationLink link:definitionLink 0000108 - Disclosure - Income Taxes - Rollforward of Unrecognized Tax Benefits (Details) link:presentationLink link:calculationLink link:definitionLink 0000109 - Disclosure - Income Taxes - Recognition of Unrecognized Tax Benefits (Details) link:presentationLink link:calculationLink link:definitionLink 0000110 - Disclosure - Income Taxes - Summary of Interest and Penalties Receivable (Payable) (Details) link:presentationLink link:calculationLink link:definitionLink 0000111 - Disclosure - Income Taxes - Long-Term Marginal State Income Tax Rate (Details) link:presentationLink link:calculationLink link:definitionLink 0000112 - Disclosure - Income Taxes - Allocation of Tax Benefits (Details) link:presentationLink link:calculationLink link:definitionLink 0000113 - Disclosure - Retirement Benefits- Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000114 - Disclosure - Retirement Benefits - Summary of Changes in Benefit Obligations and Plan Assets (Details) link:presentationLink link:calculationLink link:definitionLink 0000115 - Disclosure - Retirement Benefits - Benefit Obligations and Plan Assets in Balance Sheet (Details) link:presentationLink link:calculationLink link:definitionLink 0000116 - Disclosure - Retirement Benefits- Projected Benefit Obligations and Accumulated Benefit Obligations in Excess of Plan Assets (Details) link:presentationLink link:calculationLink link:definitionLink 0000117 - Disclosure - Retirement Benefits - Components of Net Periodic Benefit Cost (Details) link:presentationLink link:calculationLink link:definitionLink 0000118 - Disclosure - Retirement Benefits - Allocated Portion of Pension and Postretirement Benefit Plan Costs (Details) link:presentationLink link:calculationLink link:definitionLink 0000119 - Disclosure - Retirement Benefits - Components of Accumulated Other Comprehensive Income and Regulatory Assets (Liabilities) related to Retirement Plans (Details) link:presentationLink link:calculationLink link:definitionLink 0000120 - Disclosure - Retirement Benefits - Gross Accumulated Other Comprehensive Loss and Regulatory Assets (Liabilities) not Recognized as Components of Periodic Benefit Cost (Details) link:presentationLink link:calculationLink link:definitionLink 0000121 - Disclosure - Retirement Benefits - Assumptions Used in Calculations (Details) link:presentationLink link:calculationLink link:definitionLink 0000122 - Disclosure - Retirement Benefits - Contributions made to Pension and Other Postretirement Benefit Plans (Details) link:presentationLink link:calculationLink link:definitionLink 0000123 - Disclosure - Retirement Benefits - Estimated Future Benefit Payments (Details) link:presentationLink link:calculationLink link:definitionLink 0000124 - Disclosure - Retirement Benefits - Pension and Other Postretirement Benefit Plan Target Asset Allocations (Details) link:presentationLink link:calculationLink link:definitionLink 0000125 - Disclosure - Retirement Benefits - Fair Value Measurements of Pension and Postretirement Benefit Plan Assets (Details) link:presentationLink link:calculationLink link:definitionLink 0000126 - 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 0000127 - Disclosure - Retirement Benefits - Defined Contribution Savings Plan (Details) link:presentationLink link:calculationLink link:definitionLink 0000128 - Disclosure - Derivative Financial Instruments - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000129 - Disclosure - Derivative Financial Instruments - Summary of Interest Rate Hedge Balances (Details) link:presentationLink link:calculationLink link:definitionLink 0000130 - Disclosure - Derivative Financial Instruments - Summary of Economic Hedges (Details) link:presentationLink link:calculationLink link:definitionLink 0000131 - Disclosure - Debt and Credit Agreements - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000132 - Disclosure - Debt and Credit Agreements - Commercial Paper Borrowings (Details) link:presentationLink link:calculationLink link:definitionLink 0000133 - Disclosure - Debt and Credit Agreements - Summary of Bank Commitments, Credit Facility Borrowings and Available Capacity (Details) link:presentationLink link:calculationLink link:definitionLink 0000134 - Disclosure - Debt and Credit Agreements - Summary of Credit Facility Agreements at Minority and Community Banks (Details) link:presentationLink link:calculationLink link:definitionLink 0000135 - Disclosure - Debt and Credit Agreements - Summary of Revolving Credit Agreements (Details) link:presentationLink link:calculationLink link:definitionLink 0000136 - Disclosure - Debt and Credit Agreements - Summary of Basis Spread (Details) link:presentationLink link:calculationLink link:definitionLink 0000137 - Disclosure - Debt and Credit Agreements - Summary of Outstanding Long-term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 0000138 - Disclosure - Debt and Credit Agreements - Schedule of Long-term Debt Maturities (Details) link:presentationLink link:calculationLink link:definitionLink 0000139 - Disclosure - Fair Value of Financial Assets and Liabilities - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000140 - Disclosure - Fair Value of Financial Assets and Liabilities - Fair Value of Financial Liabilities Recorded at Amortized Cost(Details) link:presentationLink link:calculationLink link:definitionLink 0000141 - Disclosure - Fair Value of Financial Assets and Liabilities - Fair Value Measurement of Assets and Liabilities, Recurring (Details) link:presentationLink link:calculationLink link:definitionLink 0000142 - Disclosure - Fair Value of Financial Assets and Liabilities - Fair Value Reconciliation of Level 3 Assets and Liabilities Measured on a Recurring Basis (Details) link:presentationLink link:calculationLink link:definitionLink 0000143 - Disclosure - Fair Value of Financial Assets and Liabilities - Fair Value Inputs Assets Quantitative Information (Details) link:presentationLink link:calculationLink link:definitionLink 0000144 - Disclosure - Commitments and Contingencies - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000145 - Disclosure - Commitments and Contingencies - Schedule of PHI Merger Commitments (Details) link:presentationLink link:calculationLink link:definitionLink 0000146 - Disclosure - Commitments and Contingencies - Schedule of Commercial Commitments (Details) link:presentationLink link:calculationLink link:definitionLink 0000147 - Disclosure - Commitments and Contingencies - Settlement Agreements (Details) link:presentationLink link:calculationLink link:definitionLink 0000148 - Disclosure - Commitments and Contingencies - Schedule of Spent Nuclear Fuel Obligation (Details) link:presentationLink link:calculationLink link:definitionLink 0000149 - Disclosure - Commitments and Contingencies - Schedule of Environmental Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 0000150 - Disclosure - Severance Severance - Ongoing Severance Plans (Details) link:presentationLink link:calculationLink link:definitionLink 0000151 - Disclosure - Severance Severance - Cost Management Program-Related (Details) link:presentationLink link:calculationLink link:definitionLink 0000152 - Disclosure - Severance Severance - PHI Merger (Details) link:presentationLink link:calculationLink link:definitionLink 0000153 - Disclosure - Severance Severance - Liabilities Rollforward (Details) link:presentationLink link:calculationLink link:definitionLink 0000154 - Disclosure - Severance Severance - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000155 - Disclosure - Shareholders' Equity - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000156 - Disclosure - Shareholders' Equity - Schedule of Common Stock Warrants (Details) link:presentationLink link:calculationLink link:definitionLink 0000157 - Disclosure - Shareholders' Equity - Schedule of Preferred Stock (Details) link:presentationLink link:calculationLink link:definitionLink 0000158 - Disclosure - Shareholders' Equity - Schedule of Preference Stock (Details) link:presentationLink link:calculationLink link:definitionLink 0000159 - Disclosure - Stock-Based Compensation Plans - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000160 - Disclosure - Stock-Based Compensation Plans - Schedule of Stock-based Compensation Expense (Details) link:presentationLink link:calculationLink link:definitionLink 0000161 - Disclosure - Stock-Based Compensation Plans - Components of Tax Benefits from Stock-based Compensation (Details) link:presentationLink link:calculationLink link:definitionLink 0000162 - Disclosure - Stock-Based Compensation Plans - Summary of Performance Share Awards Activity (Details) link:presentationLink link:calculationLink link:definitionLink 0000163 - Disclosure - Stock-Based Compensation Plans - Summary of Weighted Average Fair Value (Details) link:presentationLink link:calculationLink link:definitionLink 0000164 - Disclosure - Stock-Based Compensation Plans - Summary of Nonvested Restricted Stock Unit Activity (Details) link:presentationLink link:calculationLink link:definitionLink 0000165 - Disclosure - Stock-Based Compensation Plans - Summary of Weighted Average Restricted Stock Unit Activity (Details) link:presentationLink link:calculationLink link:definitionLink 0000166 - Disclosure - Stock-Based Compensation Plans - Summary of Stock Option Activity (Details) link:presentationLink link:calculationLink link:definitionLink 0000167 - Disclosure - Stock-Based Compensation Plans - Summary of Stock Option Exercised (Details) link:presentationLink link:calculationLink link:definitionLink 0000168 - Disclosure - Changes in Accumulated Other Comprehensive Income - Schedule of Changes in AOCI (Details) link:presentationLink link:calculationLink link:definitionLink 0000169 - Disclosure - Changes in Accumulated Other Comprehensive Income - Income Taxes Allocated to Other Comprehensive Income (Loss) Components (Details) link:presentationLink link:calculationLink link:definitionLink 0000170 - Disclosure - Supplemental Financial Information - Summary of Taxes other than income (Details) link:presentationLink link:calculationLink link:definitionLink 0000171 - Disclosure - Supplemental Financial Information - Summary of Other Income (Expense) (Details) link:presentationLink link:calculationLink link:definitionLink 0000172 - Disclosure - Supplemental Financial Information - Supplemental Cash Flow Information (Details) link:presentationLink link:calculationLink link:definitionLink 0000173 - Disclosure - Supplemental Financial Information - Supplemental Balance Sheet Information (Details) link:presentationLink link:calculationLink link:definitionLink 0000174 - Disclosure - Related Party Transactions - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000175 - Disclosure - Related Party Transactions - Operating Revenues and Purchased Power and Fuel From Affiliates (Details) link:presentationLink link:calculationLink link:definitionLink 0000176 - Disclosure - Related Party Transactions - BSC and PHISCO Service Companies (Details) link:presentationLink link:calculationLink link:definitionLink 0000177 - Disclosure - Related Party Transactions - Current Receivables From/Payables To Affiliates (Details) link:presentationLink link:calculationLink link:definitionLink 0000178 - Disclosure - Related Party Transactions - Long Term Debt to Financing Trusts (Details) link:presentationLink link:calculationLink link:definitionLink 0000179 - Disclosure - Subsequent Events - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000180 - 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 0000181 - Disclosure - Schedule I - Condensed Financial Information of Parent (Exelon Corporate) - Condensed Statements of Cash Flows (Details) link:presentationLink link:calculationLink link:definitionLink 0000182 - Disclosure - Schedule I - Condensed Financial Information of Parent (Exelon Corporate) - Condensed Balance Sheet (Details) link:presentationLink link:calculationLink link:definitionLink 0000183 - Disclosure - Schedule I - Condensed Financial Information of Parent (Exelon Corporate) - Basis of Presentation - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000184 - Disclosure - Schedule I - Condensed Financial Information of Parent (Exelon Corporate) - Debt and Credit Agreements - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000185 - Disclosure - Schedule I - Condensed Financial Information of Parent (Exelon Corporate) - Debt and Credit Agreements - Schedule of Outstanding Long-term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 0000186 - Disclosure - Schedule I - Condensed Financial Information of Parent (Exelon Corporate) - Debt and Credit Agreements - Schedule of Debt Maturities (Details) link:presentationLink link:calculationLink link:definitionLink 0000187 - Disclosure - Schedule I - Condensed Financial Information of Parent (Exelon Corporate) - Related Party Transactions - Summary of Related Party Transactions (Details) link:presentationLink link:calculationLink link:definitionLink 0000188 - Disclosure - Schedule II - Valuation and Qualifying Accounts Schedule (Details) link:presentationLink link:calculationLink link:definitionLink