Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Statement of Comprehensive Income [Abstract]
Net income	$ 568	$ 639	$ 1,626	$ 2,077
Other comprehensive income, net of tax
Net unrealized gain on securities available for sale	72	438	400	325
Net change in unrealized loss on securities available for sale transferred to securities held to maturity	0	1	0	1
Net change in defined benefit pension items	(1)	0	(4)	(8)
Net unrealized (loss) gain on cash flow hedge derivatives	(1)	12	5	14
Other comprehensive income, net of tax	70	451	401	332
Total comprehensive income	$ 638	$ 1,090	$ 2,027	$ 2,409