Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenues and other income:
Revenue	$ 5,141	$ 6,057	$ 14,298	$ 19,210
Interest and other income (loss), net	52	(12)	59	57
Derivative gain (loss), net	(190)	13	(235)	(187)
Gain on disposition of assets, net	1	35	23	105
Revenues	5,004	6,093	14,145	19,185
Costs and expenses:
Production and ad valorem taxes	205	260	598	755
Depletion, depreciation and amortization	728	641	2,087	1,874
Exploration and abandonments	18	8	56	32
General and administrative	87	90	259	252
Accretion of discount on asset retirement obligations	4	4	12	12
Interest	44	30	114	100
Other	25	36	93	118
Total costs and expenses	3,337	3,599	9,514	11,102
Income before income taxes	1,667	2,494	4,631	8,083
Income tax provision	(366)	(510)	(1,006)	(1,719)
Net income attributable to common shareholders	$ 1,301	$ 1,984	$ 3,625	$ 6,364
Net income per share attributable to common shareholders:
Basic (usd per share)	$ 5.56	$ 8.29	$ 15.47	$ 26.36
Diluted (usd per share)	$ 5.41	$ 7.93	$ 14.96	$ 25.11
Weighted average shares outstanding:
Basic weighted average shares outstanding (in shares)	233	239	234	241
Diluted weighted average shares outstanding (in shares)	240	250	242	253
Dividends declared (usd per share)	$ 1.84	$ 8.57	$ 10.76	$ 19.73
Oil and gas
Revenues and other income:
Revenue	$ 3,460	$ 4,224	$ 9,603	$ 12,794
Costs and expenses:
Costs and expenses	564	562	1,506	1,457
Sales of purchased commodities
Revenues and other income:
Revenue	1,681	1,833	4,695	6,416
Costs and expenses:
Costs and expenses	$ 1,662	$ 1,968	$ 4,789	$ 6,502