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Segment Disclosures and Related Information - Depreciation, Depletion, Amortization and Impairments, Equity in Earnings of Affiliates and Income Tax Provision (Benefit) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Consolidated depreciation, depletion, amortization and impairments	$ 7,492	$ 7,882	$ 6,334
Consolidated equity in earnings of affiliates	2,081	832	432
Consolidated income tax provision (benefit)	9,548	4,633	(485)
Corporate and Other
Segment Reporting Information [Line Items]
Consolidated depreciation, depletion, amortization and impairments	44	76	54
Consolidated equity in earnings of affiliates	0	0	0
Consolidated income tax provision (benefit)	(609)	(282)	(76)
Alaska | Operating Segments
Segment Reporting Information [Line Items]
Consolidated depreciation, depletion, amortization and impairments	941	1,002	996
Consolidated equity in earnings of affiliates	4	5	(7)
Consolidated income tax provision (benefit)	885	402	(256)
Lower 48 | Operating Segments
Segment Reporting Information [Line Items]
Consolidated depreciation, depletion, amortization and impairments	4,854	4,067	3,358
Consolidated equity in earnings of affiliates	(14)	(18)	(11)
Consolidated income tax provision (benefit)	3,088	1,390	(378)
Canada | Operating Segments
Segment Reporting Information [Line Items]
Consolidated depreciation, depletion, amortization and impairments	400	392	342
Consolidated equity in earnings of affiliates	0	0	0
Consolidated income tax provision (benefit)	206	150	(185)
Europe, Middle East and North Africa | Operating Segments
Segment Reporting Information [Line Items]
Consolidated depreciation, depletion, amortization and impairments	735	862	775
Consolidated equity in earnings of affiliates	780	502	311
Consolidated income tax provision (benefit)	5,445	2,543	136
Asia Pacific | Operating Segments
Segment Reporting Information [Line Items]
Consolidated depreciation, depletion, amortization and impairments	518	1,483	809
Consolidated equity in earnings of affiliates	1,310	343	137
Consolidated income tax provision (benefit)	480	483	294
Other International | Operating Segments
Segment Reporting Information [Line Items]
Consolidated depreciation, depletion, amortization and impairments	0	0	0
Consolidated equity in earnings of affiliates	1	0	2
Consolidated income tax provision (benefit)	$ 53	$ (53)	$ (20)

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