Earnings Per Share and Stockholders' Equity - Basic and Diluted EPS (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Basic earnings (loss) per common share
Income from continuing operations	$ 3,755	$ 100	$ 8,631	$ 399
Income (loss) from discontinued operations	0	3	0	(442)
NET INCOME (LOSS)	3,755	103	8,631	(43)
Less: Preferred stock dividends	(200)	(200)	(400)	(400)
NET INCOME (LOSS) ATTRIBUTABLE TO COMMON STOCKHOLDERS	3,555	(97)	8,231	(443)
Less: Net income allocated to participating securities	(28)	0	(59)	0
Net income (loss), net of participating securities	$ 3,527	$ (97)	$ 8,172	$ (443)
Weighted-average number of basic shares (in shares)	939.2	934.2	938.3	933.8
Basic income (loss) per common share (in usd per share)	$ 3.76	$ (0.10)	$ 8.71	$ (0.47)
Less: Net income allocated to participating securities	$ (26)	$ 0	$ (56)	$ 0
Net income (loss), net of participating securities	$ 3,529	$ (97)	$ 8,175	$ (443)
Dilutive securities (in shares)	79.1	0.0	69.2	0.0
Dilutive effect of potentially dilutive securities (in shares)	1,018.3	934.2	1,007.5	933.8
Diluted income (loss) per common share (in usd per share)	$ 3.47	$ (0.10)	$ 8.11	$ (0.47)