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Fair Value Measurement - Schedule of Commodity Derivative Balances Subject to Right of Setoff (Details) - USD ($) $ in Millions | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Offsetting Derivative Assets [Abstract] |  |
Assets - gross amounts recognized | $ 662 | $ 2,037
Assets - amounts without right of setoff | 30 | 39
Assets - gross amounts | 632 | 1,998
Assets - gross amounts offset | 418 | 1,176
Assets - net amounts presented | 214 | 822
Assets - cash collateral | 1 | 37
Assets - net amounts | 213 | 785
Offsetting Derivative Liabilities [Abstract] |  |
Liabilities - gross amounts recognized | 603 | 2,010
Liabilities - amounts without right of setoff | 27 | 20
Liabilities - gross amounts recognized | 576 | 1,990
Liabilities - gross amounts offset | 418 | 1,176
Liabilities - net amounts presented | 158 | 814
Liabilities - cash collateral | 23 | 52
Liabilities - net amounts | $ 135 | $ 762

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