Accumulated Other Comprehensive Income (Loss) (Tables)

9 Months Ended

Sep. 30, 2020

Equity [Abstract]

Changes, net of tax, in accumulated other comprehensive income (loss)

Changes, net of tax, in accumulated other comprehensive income (loss) were as follows:

(dollars in millions)	Unrealized Gains (Losses) Available-for-Sale Securities *		Retirement Plan Liabilities Adjustments		Foreign Currency Translation Adjustments		Total Accumulated Other Comprehensive Income (Loss)
Three Months Ended September 30, 2020
Balance at beginning of period	$	66	$	3	$	(4)	$	65
Other comprehensive income before reclassifications	12		—		2		14
Balance at end of period	$	78	$	3	$	(2)	$	79
Three Months Ended September 30, 2019
Balance at beginning of period	$	30	$	(3)	$	1	$	28
Other comprehensive income (loss) before reclassifications	11		—		(1)		10
Balance at end of period	$	41	$	(3)	$	—	$	38
Nine Months Ended September 30, 2020
Balance at beginning of period	$	41	$	3	$	—	$	44
Other comprehensive income (loss) before reclassifications	38		—		(2)		36
Reclassification adjustments from accumulated other comprehensive income	(1)		—		—		(1)
Balance at end of period	$	78	$	3	$	(2)	$	79
Nine Months Ended September 30, 2019
Balance at beginning of period	$	(28)	$	(3)	$	(3)	$	(34)
Other comprehensive income before reclassifications	69		—		3		72
Balance at end of period	$	41	$	(3)	$	—	$	38

* There were no amounts related to available-for-sale debt securities for which an allowance for credit losses was recorded during the three and nine months ended September 30, 2020.