Earnings Per Share and Stockholders' Equity - Basic and Diluted EPS (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Basic earnings (loss) per common share
Income from continuing operations	$ 2,746	$ 830	$ 11,377	$ 1,229
Loss from discontinued operations	0	(2)	0	(444)
NET INCOME	2,746	828	11,377	785
Less: Preferred stock dividends	(200)	(200)	(600)	(600)
NET INCOME ATTRIBUTABLE TO COMMON STOCKHOLDERS	2,546	628	10,777	185
Less: Net income allocated to participating securities	(18)	(5)	(76)	(1)
Net income, net of participating securities	$ 2,528	$ 623	$ 10,701	$ 184
Weighted-average number of basic shares (in shares)	922.0	935.4	933.0	934.4
Basic income per common share (in usd per share)	$ 2.74	$ 0.67	$ 11.47	$ 0.20
Less: Net income allocated to participating securities	$ (17)	$ (5)	$ (70)	$ (1)
Net income, net of participating securities	$ 2,529	$ 623	$ 10,707	$ 184
Dilutive securities (in shares)	80.5	22.3	72.9	19.8
Dilutive effect of potentially dilutive securities (in shares)	1,002.5	957.7	1,005.9	954.2
Diluted income per common share (in usd per share)	$ 2.52	$ 0.65	$ 10.64	$ 0.19