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Financial and Other Derivative Instruments (Netting Offsets Reconciliation to Balance Sheet) (Details) - USD ($) $ in Millions | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Derivative Assets |  |
Derivative Assets | $ 891 | $ 1,197
Collateral adjustment | (2) | 0
Derivative assets, current | 191 | 297
Derivative assets, noncurrent | 57 | 109
Derivative Liabilities |  |
Derivative Liabilities | (935) | (1,172)
Collateral adjustment | 49 | 72
Derivative liabilities, current | (126) | (177)
Derivative liabilities, noncurrent | (119) | (132)
Current derivative assets |  |
Derivative Assets |  |
Derivative Assets | 658 | 910
Counterparty netting | (467) | (613)
Collateral adjustment | 0 | 0
Noncurrent derivative assets |  |
Derivative Assets |  |
Derivative Assets | 233 | 287
Counterparty netting | (174) | (178)
Collateral adjustment | (2) | 0
Current derivative liabilities |  |
Derivative Liabilities |  |
Derivative Liabilities | (642) | (847)
Counterparty netting | 467 | 613
Collateral adjustment | 49 | 57
Noncurrent derivative liabilities |  |
Derivative Liabilities |  |
Derivative Liabilities | (293) | (325)
Counterparty netting | 174 | 178
Collateral adjustment | $ 0 | $ 15

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