CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Millions	Total	Cumulative Effect, Period of Adoption, Adjustment	Preferred Stock	Common Stock	Additional Paid-in Capital	Retained Earnings	Retained Earnings Cumulative Effect, Period of Adoption, Adjustment	Treasury Stock, at Cost	Accumulated Other Comprehensive Income (Loss)
Beginning balance (in shares) at Dec. 31, 2022			2,000,000	492,000,000
Beginning balance at Dec. 31, 2022	$ 23,690	$ (26)	$ 2,014	$ 6	$ 22,142	$ 9,159	$ (26)	$ (5,071)	$ (4,560)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared - common stock	(808)					(808)
Dividends declared - preferred stock	(117)					(117)
Treasury stock purchased (in shares)				(29,000,000)
Treasury stock purchased	(906)							(906)
Share repurchase excise tax	(9)							(9)
Share-based compensation plans (in shares)				2,000,000
Share-based compensation plans	81				81
Employee stock purchase plan (in shares)				1,000,000
Employee stock purchase plan	27				27
Total comprehensive income (loss):
Net income	1,608					1,608
Other comprehensive income (loss)	802								802
Total comprehensive income (loss)	2,410					1,608			802
Ending balance (in shares) at Dec. 31, 2023			2,000,000	466,000,000
Ending balance at Dec. 31, 2023	24,342		$ 2,014	$ 6	22,250	9,816		(5,986)	(3,758)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared - common stock	(769)					(769)
Dividends declared - preferred stock	(137)					(137)
Preferred stock issued	392		392
Preferred stock redemption	$ (300)		$ (293)			(7)
Treasury stock purchased (in shares)	(28,113,278)			(28,000,000)
Treasury stock purchased	$ (1,050)							(1,050)
Share repurchase excise tax	(11)							(11)
Share-based compensation plans (in shares)				2,000,000
Share-based compensation plans				$ 1
Share-based compensation plans	90				89
Employee stock purchase plan (in shares)				1,000,000
Employee stock purchase plan	25				25
Total comprehensive income (loss):
Net income	1,509					1,509
Other comprehensive income (loss)	163								163
Total comprehensive income (loss)	1,672					1,509			163
Ending balance (in shares) at Dec. 31, 2024			2,000,000	441,000,000
Ending balance at Dec. 31, 2024	24,254		$ 2,113	$ 7	22,364	10,412		(7,047)	(3,595)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared - common stock	(755)					(755)
Dividends declared - preferred stock	(138)					(138)
Preferred stock issued	393		393
Preferred stock redemption	$ (400)		$ (395)			(5)
Treasury stock purchased (in shares)	(13,471,628)			(14,000,000)
Treasury stock purchased	$ (600)							(600)
Share repurchase excise tax	(5)							(5)
Share-based compensation plans (in shares)				2,000,000
Share-based compensation plans	84				84
Employee stock purchase plan	28				28
Total comprehensive income (loss):
Net income	1,831					1,831
Other comprehensive income (loss)	1,625								1,625
Total comprehensive income (loss)	3,456					1,831			1,625
Ending balance (in shares) at Dec. 31, 2025			2,000,000	429,000,000
Ending balance at Dec. 31, 2025	$ 26,317		$ 2,111	$ 7	$ 22,476	$ 11,345		$ (7,652)	$ (1,970)