CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statements of Comprehensive Income/(loss)
Net income	$ 223	$ 142	$ 624	$ 727
Other comprehensive income (loss), net of tax:
Net unrealized gains (losses) on securities available for sale	232	(206)	167	(197)
Net unrealized gains (losses) on cash flow hedges	58	(20)	26	(22)
Net unrealized gains (losses) on pension and other postretirement plans	2	3	6	5
Other comprehensive income (loss)	292	(223)	199	(214)
Comprehensive income (loss)	515	(81)	823	513
Comprehensive income attributable to noncontrolling interest	5	5	15	14
Comprehensive income (loss) attributable to controlling interest	510	(86)	808	499
Income tax expense (benefit) of items included in other comprehensive income:
Net unrealized gains (losses) on securities available for sale	75	(67)	53	(65)
Net unrealized gains (losses) on cash flow hedges	19	(6)	9	(7)
Net unrealized gains (losses) on pension and other postretirement plans	$ 1	$ 1	$ 2	$ 2