Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenues and other income:
Revenues from contracts with customers	$ 5,601	$ 3,097	$ 5,063
Net gain (loss) on commodity derivatives	(383)	116	(72)
Income (loss) from equity method investments	253	(161)	87
Net gain (loss) on disposal of assets	(19)	9	50
Other income	15	25	62
Total revenues and other income	5,467	3,086	5,190
Costs and expenses:
Production	534	555	712
Shipping, handling and other operating	727	596	605
Exploration	136	181	149
Depreciation, depletion and amortization	2,066	2,316	2,397
Impairments	60	144	24
Taxes other than income	345	200	311
General and administrative	291	274	356
Total costs and expenses	4,159	4,266	4,554
Income (loss) from operations	1,308	(1,180)	636
Net interest and other	(188)	(256)	(244)
Other net periodic benefit (costs) credits	5	(1)	3
Loss on early extinguishment of debt	(121)	(28)	(3)
Income (loss) before income taxes	1,004	(1,465)	392
Provision (benefit) for income taxes	58	(14)	(88)
Net income (loss)	$ 946	$ (1,451)	$ 480
Net income (loss) per share:
Basic (in dollars per share)	$ 1.20	$ (1.83)	$ 0.59
Diluted (in dollars per share)	$ 1.20	$ (1.83)	$ 0.59
Weighted average common shares outstanding:
Basic (in shares)	787	792	810
Diluted (in shares)	788	792	810