Financial and Other Derivative Instruments (Netting Offsets Reconciliation to Balance Sheet) (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Derivative Assets
Derivative Assets	$ 1,197	$ 1,922
Collateral adjustment	0	(90)
Derivative asset, current	297	328
Derivative assets, noncurrent	109	105
Derivative Liabilities
Derivative Liabilities	(1,172)	(2,169)
Collateral adjustment	72	113
Derivative liabilities, current	(177)	(342)
Derivative liabilities, noncurrent	(132)	(315)
Current derivative asset
Derivative Assets
Derivative Assets	910	1,517
Counterparty netting	(613)	(1,127)
Collateral adjustment	0	(62)
Noncurrent derivative asset
Derivative Assets
Derivative Assets	287	405
Counterparty netting	(178)	(272)
Collateral adjustment	0	(28)
Current derivative liability
Derivative Liabilities
Derivative Liabilities	(847)	(1,535)
Counterparty netting	613	1,127
Collateral adjustment	57	66
Noncurrent derivative liability
Derivative Liabilities
Derivative Liabilities	(325)	(634)
Counterparty netting	178	272
Collateral adjustment	$ 15	$ 47

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