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v3.25.1

Capital Accounts, Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Accumulated Other Comprehensive Income (Loss) [Abstract] |  |
Balance | $ 29,589 | $ 28,759
Total other comprehensive income (loss) for period | 49 | (164)
Balance | 29,775 | 28,477
Interest expense | 340 | 331
Revenue | (15,417) | (14,760)
Operating costs and expenses | 13,690 | 12,974
Total | (1,406) | (1,483)
Cash Flow Hedges [Member] | Interest Rate Derivatives [Member] |  |
Accumulated Other Comprehensive Income (Loss) [Abstract] |  |
Balance | 143 | 151
Other comprehensive income (loss) for period, before reclassifications | 2 | 2
Reclassification of losses (gains) to net income during period | (1) | (2)
Total other comprehensive income (loss) for period | 1 | 0
Balance | 144 | 151
Cash Flow Hedges [Member] | Commodity Derivatives [Member] |  |
Accumulated Other Comprehensive Income (Loss) [Abstract] |  |
Balance | 91 | 154
Other comprehensive income (loss) for period, before reclassifications | 22 | (162)
Reclassification of losses (gains) to net income during period | 26 | (2)
Total other comprehensive income (loss) for period | 48 | (164)
Balance | 139 | (10)
Other [Member] |  |
Accumulated Other Comprehensive Income (Loss) [Abstract] |  |
Balance | 2 | 2
Other comprehensive income (loss) for period, before reclassifications | 0 | 0
Reclassification of losses (gains) to net income during period | 0 | 0
Total other comprehensive income (loss) for period | 0 | 0
Balance | 2 | 2
Accumulated Other Comprehensive Income (Loss) [Member] |  |
Accumulated Other Comprehensive Income (Loss) [Abstract] |  |
Balance | 236 | 307
Other comprehensive income (loss) for period, before reclassifications | 24 | (160)
Reclassification of losses (gains) to net income during period | 25 | (4)
Total other comprehensive income (loss) for period | 49 | (164)
Balance | 285 | 143
Reclassification of Losses (Gains) out of Accumulated Other Comprehensive Income (Loss) [Member] |  |
Accumulated Other Comprehensive Income (Loss) [Abstract] |  |
Total | 25 | (4)
Reclassification of Losses (Gains) out of Accumulated Other Comprehensive Income (Loss) [Member] | Cash Flow Hedges [Member] | Interest Rate Derivatives [Member] |  |
Accumulated Other Comprehensive Income (Loss) [Abstract] |  |
Interest expense | (1) | (2)
Reclassification of Losses (Gains) out of Accumulated Other Comprehensive Income (Loss) [Member] | Cash Flow Hedges [Member] | Commodity Derivatives [Member] |  |
Accumulated Other Comprehensive Income (Loss) [Abstract] |  |
Revenue | 14 | (19)
Operating costs and expenses | $ 12 | $ 17

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