Other Comprehensive Income (Tables)

12 Months Ended

Dec. 31, 2020

Equity [Abstract]

Changes in AOCI, net of tax, by component

The following table presents changes in AOCI, net of tax, by component:

TABLE 20.1

(in millions)	Unrealized Net Gains (Losses) on Debt Securities Available for Sale		Unrealized Net Gains (Losses) on Derivative Instruments		Unrecognized Pension and Postretirement Obligations		Total
Year Ended December 31, 2020
Balance at beginning of period	$	11	$	(18)	$	(58)	$	(65)
Other comprehensive (loss) income before reclassifications	54		(40)		(6)		8
Amounts reclassified from AOCI	—		18		—		18
Net current period other comprehensive (loss) income	54		(22)		(6)		26
Balance at end of period	$	65	$	(40)	$	(64)	$	(39)