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Accounting for Derivative Instruments and Hedging Activities - Offsetting of Derivatives by Counterparty Master Agreement Level and Collateral Received (Details) - USD ($) $ in Millions | Mar. 31, 2024 | Dec. 31, 2023
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Offsetting of Derivatives by Counterparty Master Agreement Level and Collateral Received or Paid |  |
Cash collateral received in support of energy risk management activities | $ (241) | $ (84)
Derivative liabilities | (5,030) | (5,507)
Cash Collateral Posted | 309 | 441
Total Derivative Contracts |  |
Offsetting of Derivatives by Counterparty Master Agreement Level and Collateral Received or Paid |  |
Gross Amounts of Recognized Assets / Liabilities | 1,176 | 648
Derivative Instruments | 0 | 0
Cash Collateral (Held) / Posted | (202) | 71
Net Amount | 974 | 719
Interest rate contracts |  |
Offsetting of Derivatives by Counterparty Master Agreement Level and Collateral Received or Paid |  |
Derivative assets | 25 | 12
Derivative Instruments | (9) | (8)
Cash collateral received in support of energy risk management activities | 0 | 0
Net Amount | 16 | 4
Derivative liabilities | (10) | (8)
Derivative Instruments | 9 | 8
Cash Collateral Posted | 0 | 0
Net Amount | (1) | 0
Gross Amounts of Recognized Assets / Liabilities | 15 | 4
Derivative Instruments | 0 | 0
Cash Collateral (Held) / Posted | 0 | 0
Net Amount | 15 | 4
Foreign exchange |  |
Offsetting of Derivatives by Counterparty Master Agreement Level and Collateral Received or Paid |  |
Derivative assets | 8 | 5
Derivative Instruments | (2) | (5)
Cash collateral received in support of energy risk management activities | 0 | 0
Net Amount | 6 | 0
Derivative liabilities | (2) | (9)
Derivative Instruments | 2 | 5
Cash Collateral Posted | 0 | 0
Net Amount | 0 | (4)
Gross Amounts of Recognized Assets / Liabilities | 6 | (4)
Derivative Instruments | 0 | 0
Cash Collateral (Held) / Posted | 0 | 0
Net Amount | 6 | (4)
Commodity contracts |  |
Offsetting of Derivatives by Counterparty Master Agreement Level and Collateral Received or Paid |  |
Derivative assets | 6,173 | 6,138
Derivative Instruments | (4,609) | (4,926)
Cash collateral received in support of energy risk management activities | (237) | (74)
Net Amount | 1,327 | 1,138
Derivative liabilities | (4,894) | (5,356)
Derivative Instruments | 4,609 | 4,926
Cash Collateral Posted | 35 | 145
Net Amount | (250) | (285)
Gross Amounts of Recognized Assets / Liabilities | 1,279 | 782
Derivative Instruments | 0 | 0
Cash Collateral (Held) / Posted | (202) | 71
Net Amount | 1,077 | 853
Consumer Financing Program |  |
Offsetting of Derivatives by Counterparty Master Agreement Level and Collateral Received or Paid |  |
Derivative liabilities | (124) | (134)
Derivative Instruments | 0 | 0
Cash Collateral Posted | 0 | 0
Net Amount | $ (124) | $ (134)

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