CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 225	$ 217
Net change in unrealized gains (losses), net of tax:
Investment securities	(107)	204
Fair value option liabilities attributable to our own credit spread	(37)	63
Derivatives designated as cash flow hedges	36	98
Total other comprehensive income (loss)	(108)	365
Comprehensive income	$ 117	$ 582