Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Earnings Per Share [Abstract]
Net income	$ 463	$ 549
Preferred stock dividends	(45)	(23)
Dividends and undistributed earnings allocated to participating securities	0	(1)
Net income available to common shareholders, basic	418	525
Net income available to common shareholders, diluted	$ 418	$ 525
Basic average common shares (in shares)	301,991	341,106
Effect of dilutive securities: equity-based awards (in shares)	3,952	4,366
Diluted average common shares (in shares)	305,943	345,472
Anti-dilutive securities (in shares)	1,329	23
Earnings per common share, basic:
Basic (in USD per share)	$ 1.38	$ 1.54
Earnings per common share, diluted:
Diluted (in USD per share)	$ 1.37	$ 1.52