Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 2,206	$ 2,777	$ 11,466
Other comprehensive income, net of tax
Net unrealized gain (loss) on securities available for sale	447	(7)	162
Net change in unrealized loss on securities available for sale transferred to securities held to maturity	0	1	1
Net change in defined benefit pension items	75	44	81
Net unrealized gain on cash flow hedge derivatives	6	8	0
Other comprehensive income, net of tax	528	46	244
Total comprehensive income	$ 2,734	$ 2,823	$ 11,710