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Commodity and Other Derivative Contractual Assets and Liabilities - Schedule of Offsetting Assets and Liabilities (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
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Derivatives, Fair Value [Line Items] |  |
Derivative assets: amounts presented in balance sheet | $ 4,208 | $ 5,227
Derivative assets: offsetting financial instruments | (3,547) | (4,544)
Derivative assets: financial collateral (received) pledged | (26) | (20)
Derivative assets: net amounts | 635 | 663
Derivative liabilities: amounts presented in balance sheet | (6,932) | (8,323)
Derivative liabilities: offsetting financial instruments | 3,547 | 4,544
Derivative liabilities: financial collateral (received) pledged | 970 | 1,675
Derivative liabilities: net amounts | (2,415) | (2,104)
Derivative, fair value, net | (2,724) | (3,096)
Derivative (assets) liability, fair value of collateral, net | 944 | 1,655
Derivative assets (liability), fair value, amount offset against collateral | (1,780) | (1,441)
Commodity contracts |  |
Derivatives, Fair Value [Line Items] |  |
Derivative assets: amounts presented in balance sheet | 4,144 | 5,092
Derivative assets: offsetting financial instruments | (3,519) | (4,480)
Derivative assets: financial collateral (received) pledged | (26) | (20)
Derivative assets: net amounts | 599 | 592
Derivative liabilities: amounts presented in balance sheet | (6,884) | (8,240)
Derivative liabilities: offsetting financial instruments | 3,519 | 4,480
Derivative liabilities: financial collateral (received) pledged | 970 | 1,675
Derivative liabilities: net amounts | (2,395) | (2,085)
Interest rate swaps |  |
Derivatives, Fair Value [Line Items] |  |
Derivative assets: amounts presented in balance sheet | 64 | 135
Derivative assets: offsetting financial instruments | (28) | (64)
Derivative assets: financial collateral (received) pledged | 0 | 0
Derivative assets: net amounts | 36 | 71
Derivative liabilities: amounts presented in balance sheet | (48) | (83)
Derivative liabilities: offsetting financial instruments | 28 | 64
Derivative liabilities: financial collateral (received) pledged | 0 | 0
Derivative liabilities: net amounts | $ (20) | $ (19)

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