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Accounting for Derivative Instruments and Hedging Activities - Pre-tax Effects of Economic Hedges not Designated as Cash Flow Hedges (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Unrealized Mark To Market Results [Abstract] |  |  |
Reversal of previously recognized unrealized losses/(gains) on settled positions related to economic hedges(a) | $ 106 | $ (1,734) | $ (1,232)
Reversal of acquired loss positions related to economic hedges | 5 | 20 | 2
Net unrealized gains/(losses) on open positions related to economic hedges | (95) | 1,149 | (2,478)
Total unrealized mark-to-market gains/(losses) for economic hedging activities | 206 | (2,863) | 1,248
Reversal of previously recognized unrealized (gains)/losses on settled positions related to trading activity | (1) | 13 | 13
Net unrealized gains/(losses) on open positions related to trading activity | 2 | 25 | (17)
Total unrealized mark-to-market gains/(losses) for trading activity | 1 | 38 | (4)
Total unrealized gains/(losses) - commodities and foreign exchange | 207 | (2,825) | 1,244
Credit Risk Related Contingent Features [Abstract] |  |  |
Collateral required contracts with credit rating contingent features in a net liability position | 54 |  |
Additional collateral required | 10 |  |
Adequate Assurance Clauses |  |  |
Credit Risk Related Contingent Features [Abstract] |  |  |
Collateral required for contracts in net liability positions that have adequate assurance clauses | 589 |  |
Interest rate contracts |  |  |
Unrealized Mark To Market Results [Abstract] |  |  |
Total impact to statement of operations | 3 | 4 | 0
Commodity contracts | Operating revenue |  |  |
Unrealized Mark To Market Results [Abstract] |  |  |
Total unrealized gains/(losses) - commodities and foreign exchange | (2) | 182 | (87)
Commodity contracts | Cost of operations |  |  |
Unrealized Mark To Market Results [Abstract] |  |  |
Total unrealized gains/(losses) - commodities and foreign exchange | 186 | (2,988) | 1,315
Foreign exchange contract | Cost of operations |  |  |
Unrealized Mark To Market Results [Abstract] |  |  |
Total unrealized gains/(losses) - commodities and foreign exchange | 23 | (19) | 16
Commodity and Foreign Exchange Contracts |  |  |
Unrealized Mark To Market Results [Abstract] |  |  |
Total unrealized gains/(losses) - commodities and foreign exchange | 207 | (2,825) | 1,244
Derivative Contract-NPNS |  |  |
Unrealized Mark To Market Results [Abstract] |  |  |
Reversal of previously recognized unrealized losses/(gains) on settled positions related to economic hedges(a) | 37 |  |
Consumer Financing Program |  |  |
Unrealized Mark To Market Results [Abstract] |  |  |
Total impact to statement of operations | $ (14) | $ (16) | $ 0

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- Definition The aggregate fair value amounts of derivative instruments that contain credit-risk-related contingent features that are in a net liability position at the end of the reporting period. For nonderivative instruments that are designated and qualify as hedging instruments, the fair value amounts are the carrying value of the nonderivative hedging instrument, including the adjustment for the foreign currency transaction gain (loss) on that instrument. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4H -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4H + Details
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