Consolidated Statements of Equity - USD ($) $ in Millions	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comp Loss	Noncontrolling Interest [Member]	EIDP	EIDP Preferred Stock [Member]	EIDP Common Stock [Member]	EIDP Additional Paid-in Capital [Member]	EIDP Retained Earnings [Member]	EIDP Accumulated Other Comp Loss	EIDP Noncontrolling Interest [Member]
Beginning Balance at Dec. 31, 2020	$ 25,063	$ 7	$ 27,707	$ 0	$ (2,890)	$ 239	$ 21,601	$ 239	$ 0	$ 24,049	$ 203	$ (2,890)	$ 0
Net income (loss)	1,769			1,759		10	1,731				1,731
Net other comprehensive income (loss)	(8)				(8)		(8)					(8)
Dividends, Common Stock	(397)		(97)	(300)
Dividends, Preferred Stock							(10)				(10)
Issuance of stock	100		100				100			100
Share-based compensation	56		59				56			59
Retained Earnings, Share-based Compensation				(3)							(3)
Common Stock Repurchase	(950)		(18)	(932)
Stockholders' Equity, Other	(10)					(10)	(11)			(12)	1
Ending Balance at Dec. 31, 2021	25,623	7	27,751	524	(2,898)	239	23,459	239	0	24,196	1,922	(2,898)	0
Net income (loss)	1,158			1,147		11	1,124				1,123		1
Net other comprehensive income (loss)	92				92		92					92
Dividends, Common Stock	(418)			(418)
Dividends, Preferred Stock							(10)				(10)
Issuance of stock	88		88				88			88
Share-based compensation	10		12				10			12
Retained Earnings, Share-based Compensation				(2)							(2)
Common Stock Repurchase	(1,000)			(1,000)
Stockholders' Equity, Other	(12)			(1)		(11)	(14)			(12)	(2)
Ending Balance at Dec. 31, 2022	25,541	7	27,851	250	(2,806)	239	24,749	239	0	24,284	3,031	(2,806)	1
Net income (loss)	747			735		12	732				730		2
Net other comprehensive income (loss)	129				129		129					129
Dividends, Common Stock	(439)			(439)
Dividends, Preferred Stock							(10)				(10)
Issuance of stock	40		40				40			40
Share-based compensation	26		28				26			28
Retained Earnings, Share-based Compensation				(2)							(2)
Common Stock Repurchase	(756)		(171)	(585)
Stockholders' Equity, Other	(9)					(9)	(6)			(3)	(2)		(1)
Ending Balance at Dec. 31, 2023	$ 25,279	$ 7	$ 27,748	$ (41)	$ (2,677)	$ 242	$ 25,660	$ 239	$ 0	$ 24,349	$ 3,747	$ (2,677)	$ 2