Financial and Other Derivative Instruments (Netting Offsets Reconciliation to Balance Sheet) (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Derivative Assets
Derivative Assets	$ 1,239	$ 1,922
Collateral adjustment	0	(90)
Derivative assets, current	206	328
Derivative assets, noncurrent	68	105
Derivative Liabilities
Derivative Liabilities	(1,357)	(2,169)
Collateral adjustment	72	113
Derivative liabilities, current	(143)	(342)
Derivative liabilities, noncurrent	(177)	(315)
Current derivative assets
Derivative Assets
Derivative Assets	951	1,517
Counterparty netting	(745)	(1,127)
Collateral adjustment	0	(62)
Noncurrent derivative assets
Derivative Assets
Derivative Assets	288	405
Counterparty netting	(220)	(272)
Collateral adjustment	0	(28)
Current derivative liabilities
Derivative Liabilities
Derivative Liabilities	(920)	(1,535)
Counterparty netting	745	1,127
Collateral adjustment	32	66
Noncurrent derivative liabilities
Derivative Liabilities
Derivative Liabilities	(437)	(634)
Counterparty netting	220	272
Collateral adjustment	$ 40	$ 47

Amount of obligation to return cash collateral under master netting arrangements offset against derivative assets.

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