CONSOLIDATED STATEMENT OF EQUITY (UNAUDITED) - USD ($) $ in Millions	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Treasury Stock	Capital Stock Expense	Accumulated Other Comprehensive Income/(Loss)	Non- controlling Interest
Beginning balance (shares) at Dec. 31, 2021		354,000,000
Beginning balance at Dec. 31, 2021	$ 20,336	$ 37	$ 9,710	$ 11,445	$ (1,038)	$ (122)	$ 5	$ 299
Beginning balance (shares) at Dec. 31, 2021					23,000,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	554			602				(48)
Common stock dividends	(280)			(280)
Issuance of common shares - public offering	1					1
Issuance of common shares for stock plans	18		18
Distributions to noncontrolling interest	(6)							(6)
Ending balance (shares) at Mar. 31, 2022		354,000,000
Ending balance at Mar. 31, 2022	20,623	$ 37	9,728	11,767	$ (1,038)	(121)	5	245
Ending balance (shares) at Mar. 31, 2022					23,000,000
Beginning balance (shares) at Dec. 31, 2021		354,000,000
Beginning balance at Dec. 31, 2021	20,336	$ 37	9,710	11,445	$ (1,038)	(122)	5	299
Beginning balance (shares) at Dec. 31, 2021					23,000,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	808
Ending balance (shares) at Jun. 30, 2022		354,000,000
Ending balance at Jun. 30, 2022	20,621	$ 37	9,757	11,742	$ (1,038)	(121)	10	234
Ending balance (shares) at Jun. 30, 2022					23,000,000
Beginning balance (shares) at Dec. 31, 2021		354,000,000
Beginning balance at Dec. 31, 2021	$ 20,336	$ 37	9,710	11,445	$ (1,038)	(122)	5	299
Beginning balance (shares) at Dec. 31, 2021					23,000,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock repurchases (in shares)	(8,730,766)
Ending balance (shares) at Dec. 31, 2022		355,000,000
Ending balance at Dec. 31, 2022	$ 20,889	$ 37	9,803	11,985	$ (1,038)	(122)	22	202
Ending balance (shares) at Dec. 31, 2022					23,000,000
Beginning balance (shares) at Mar. 31, 2022		354,000,000
Beginning balance at Mar. 31, 2022	20,623	$ 37	9,728	11,767	$ (1,038)	(121)	5	245
Beginning balance (shares) at Mar. 31, 2022					23,000,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	254			255				(1)
Common stock dividends	(280)			(280)
Issuance of common shares for stock plans	29		29
Other comprehensive income (loss)	5						5
Distributions to noncontrolling interest	(10)							(10)
Ending balance (shares) at Jun. 30, 2022		354,000,000
Ending balance at Jun. 30, 2022	20,621	$ 37	9,757	11,742	$ (1,038)	(121)	10	234
Ending balance (shares) at Jun. 30, 2022					23,000,000
Beginning balance (shares) at Dec. 31, 2022		355,000,000
Beginning balance at Dec. 31, 2022	20,889	$ 37	9,803	11,985	$ (1,038)	(122)	22	202
Beginning balance (shares) at Dec. 31, 2022					23,000,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	1,430			1,433				(3)
Common stock dividends	(288)			(288)
Issuance of common shares for stock plans	15		15
Common stock repurchases (in shares)		(9,000,000)			9,000,000
Common stock repurchases	(1,008)		(200)		$ (808)
Other comprehensive income (loss)	4						4
Distributions to noncontrolling interest	(4)							(4)
Disposal of Clean Energy Businesses	(195)							(195)
Ending balance (shares) at Mar. 31, 2023		346,000,000
Ending balance at Mar. 31, 2023	20,843	$ 37	9,618	13,130	$ (1,846)	(122)	26	0
Ending balance (shares) at Mar. 31, 2023					32,000,000
Beginning balance (shares) at Dec. 31, 2022		355,000,000
Beginning balance at Dec. 31, 2022	20,889	$ 37	9,803	11,985	$ (1,038)	(122)	22	202
Beginning balance (shares) at Dec. 31, 2022					23,000,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	1,655
Ending balance (shares) at Jun. 30, 2023		344,000,000
Ending balance at Jun. 30, 2023	20,805	$ 37	9,807	13,075	$ (2,017)	(122)	25	0
Ending balance (shares) at Jun. 30, 2023					34,000,000
Beginning balance (shares) at Mar. 31, 2023		346,000,000
Beginning balance at Mar. 31, 2023	20,843	$ 37	9,618	13,130	$ (1,846)	(122)	26	0
Beginning balance (shares) at Mar. 31, 2023					32,000,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	226			226
Common stock dividends	(281)			(281)
Issuance of common shares for stock plans	$ 20		20
Common stock repurchases (in shares)	(1,812,497)	(2,000,000)			2,000,000
Common stock repurchases	$ (2)		169		$ (171)
Other comprehensive income (loss)	(1)						(1)
Ending balance (shares) at Jun. 30, 2023		344,000,000
Ending balance at Jun. 30, 2023	$ 20,805	$ 37	$ 9,807	$ 13,075	$ (2,017)	$ (122)	$ 25	$ 0
Ending balance (shares) at Jun. 30, 2023					34,000,000