Earnings Per Share Net Income for Earnings Per Share Calculations - Basic and Diluted (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Earnings Per Share [Abstract]
Income (loss) from continuing operations after income taxes	$ (315)	$ (322)	$ 1,172	$ 1,257
Net income (loss) Attributable to Noncontrolling Interest, Continuing Operations	3	3	10	9
Net Income (Loss) from Continuing Operations Available to Common Shareholders, Diluted	(318)	(325)	1,162	1,248
Net income (loss) from Continuing Operations Available to Common Shareholders	(318)	(325)	1,162	1,248
Income (loss) from discontinued operations after income taxes	(3)	(6)	(174)	(46)
Diluted earnings (loss) per share of common stock	(321)	(331)	988	1,202
Basic earnings (loss) per share of common stock	$ (321)	$ (331)	$ 988	$ 1,202