Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenues and other income:
Revenue	$ 4,961	$ 1,857	$ 12,294	$ 5,008
Interest and other income (loss), net	2	13	42	(145)
Derivative loss, net	(501)	(141)	(2,024)	(41)
Gain on disposition of assets, net	1	2	14	7
Total revenues and other income	4,463	1,731	10,326	4,829
Costs and expenses:
Production and ad valorem taxes	179	63	445	182
Depletion, depreciation and amortization	704	393	1,825	1,243
Exploration and abandonments	10	16	40	35
General and administrative	72	64	216	180
Accretion of discount on asset retirement obligations	2	2	5	7
Interest	41	34	122	94
Other	34	98	384	273
Total costs and expenses	3,127	1,831	8,571	5,118
Income (loss) before income taxes	1,336	(100)	1,755	(289)
Income tax benefit (provision)	(291)	15	(400)	46
Net income (loss) attributable to common stockholders	$ 1,045	$ (85)	$ 1,355	$ (243)
Net income (loss) per share attributable to common stockholders:
Basic (usd per share)	$ 4.27	$ (0.52)	$ 5.88	$ (1.47)
Diluted (usd per share)	$ 4.07	$ (0.52)	$ 5.60	$ (1.47)
Weighted average shares outstanding:
Basic weighted average shares outstanding (in shares)	244	165	230	165
Diluted weighted average shares outstanding (in shares)	257	165	242	165
Dividends declared (usd per share)	$ 2.07	$ 0.55	$ 3.19	$ 1.65
Oil and gas
Revenues and other income:
Revenue	$ 3,282	$ 922	$ 7,787	$ 2,617
Costs and expenses:
Costs and expenses	323	163	890	506
Sales of purchased commodities
Revenues and other income:
Revenue	1,679	935	4,507	2,391
Costs and expenses:
Costs and expenses	$ 1,762	$ 998	$ 4,644	$ 2,598