Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Statement of Comprehensive Income [Abstract]
Net income	$ 575	$ 707	$ 1,058	$ 1,438
Other comprehensive income (loss), net of tax
Net unrealized gain (loss) on securities available for sale	89	(22)	328	(113)
Net change in defined benefit pension items	(3)	(8)	(3)	(8)
Net unrealized (loss) gain on cash flow hedge derivatives	(1)	2	6	2
Other comprehensive income (loss), net of tax	85	(28)	331	(119)
Total comprehensive income	$ 660	$ 679	$ 1,389	$ 1,319