Income Taxes - Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income (loss) before income taxes
United States	$ 9,472	$ 16,739	$ 8,024
Foreign	6,816	11,489	4,688
Income (loss) before income taxes	16,288	28,228	12,712
Federal statutory income tax	3,421	5,928	2,670
Non-U.S. effective tax rates	2,063	3,866	1,915
Recovery of outside basis	(4)	(30)	(55)
Adjustment to tax reserves	(317)	(551)	(11)
Adjustment to valuation allowance	(2)	5	(45)
State income tax	214	405	194
Enhanced oil recovery credit	0	(37)	(99)
Other	(44)	(38)	64
Total tax provision (benefit)	$ 5,331	$ 9,548	$ 4,633
Income (loss) before income taxes, United States, Percent of Pre-Tax Income (Loss)	58.20%	59.30%	63.10%
Income (loss) before income taxes, Foreign, Percent of Pre-Tax Income (Loss)	41.80%	40.70%	36.90%
Income (loss) before income taxes, Percent of Pre-Tax Income (Loss)	100.00%	100.00%	100.00%
Federal statutory income tax, Percent of Pre-Tax Income (Loss)	21.00%	21.00%	21.00%
Non-U.S. effective tax rates, Percent of Pre-Tax Income (Loss)	12.70%	13.70%	15.10%
Recovery of outside basis, Percent of Pre-Tax Income (Loss)	0.00%	(0.10%)	(0.40%)
Adjustment to tax reserves, Percent of Pre-Tax Income (Loss)	(1.90%)	(2.00%)	(0.10%)
Adjustment to valuation allowances, Percent of Pre-Tax Income (Loss)	0.00%	0.00%	(0.40%)
State income tax, Percent of Pre-Tax Income (Loss)	1.30%	1.40%	1.50%
Enhanced oil recovery credit, Percent of Pre-Tax Income (Loss)	0.00%	(0.10%)	(0.80%)
Other, Percent of Pre-Tax Income (Loss)	(0.30%)	(0.10%)	0.50%
Total, Percent of Pre-Tax Income (Loss)	32.70%	33.80%	36.40%

Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the reserve for deferred tax assets.

No definition available.