CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statements of Comprehensive Income/(loss)
Net income	$ 204	$ 329	$ 401	$ 585
Other comprehensive income (loss), net of tax:
Net unrealized gains (losses) on securities available for sale	(10)	(105)	(65)	9
Net unrealized gains (losses) on cash flow hedges	(2)	(46)	(32)	(2)
Net unrealized gains (losses) on pension and other postretirement plans	2	0	4	2
Other comprehensive income (loss)	(10)	(151)	(93)	9
Comprehensive income (loss)	194	178	308	594
Comprehensive income attributable to noncontrolling interest	5	4	10	9
Comprehensive income (loss) attributable to controlling interest	189	174	298	585
Income tax expense (benefit) of items included in other comprehensive income:
Net unrealized gains (losses) on securities available for sale	(3)	(34)	(22)	2
Net unrealized gains (losses) on cash flow hedges	(1)	(15)	(10)	(1)
Net unrealized gains (losses) on pension and other postretirement plans	$ 1	$ 1	$ 1	$ 1