CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (LOSS) (UNAUDITED) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 151	$ 90	$ 368	$ 291
Net change in unrealized gains (losses), net of tax:
Investment securities	(63)	(574)	141	(1,617)
Fair value option liabilities attributable to our own credit spread	(64)	51	(1)	80
Derivatives designated as cash flow hedges	(49)	(62)	49	(214)
Total other comprehensive income (loss)	(176)	(585)	189	(1,751)
Comprehensive income (loss)	$ (25)	$ (495)	$ 557	$ (1,460)