CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statements of Comprehensive Income/(loss)
Net income	$ 235	$ 539	$ 781	$ 612
Other comprehensive income (loss), net of tax:
Net unrealized gains (losses) on securities available for sale	(38)	(5)	(103)	82
Net unrealized gains (losses) on cash flow hedges	(1)	(3)	(5)	10
Net unrealized gains (losses) on pension and other postretirement plans	1	2	7	7
Other comprehensive income (loss)	(38)	(6)	(101)	99
Comprehensive income (loss)	197	533	680	711
Comprehensive income attributable to noncontrolling interest	3	3	9	8
Comprehensive income attributable to controlling interest	194	530	671	703
Income tax expense (benefit) of items included in other comprehensive income:
Net unrealized gains (losses) on securities available for sale	(12)	(2)	(33)	26
Net unrealized gains (losses) on cash flow hedges	0	(1)	(2)	3
Net unrealized gains (losses) on pension and other postretirement plans	$ 1	$ 2	$ 2	$ 4