Other Comprehensive Income (Loss)

9 Months Ended

Sep. 30, 2021

Equity [Abstract]

Other Comprehensive Income (Loss)

Other Comprehensive Income (Loss)

Changes in Accumulated other comprehensive loss by component are as follows:

($ in millions)	Employee Benefit Plans		Cumulative Translation Adjustment		Accumulated Other Comprehensive Income (Loss)
Balance at July 1, 2020, net of taxes	$	(343)	$	(693)	$	(1,036)
Other comprehensive income (loss), pretax	4		40		44
Tax	—		—		—
Other comprehensive income (loss), net of taxes	4		40		44
Balance at September 30, 2020, net of taxes	$	(339)	$	(653)	$	(992)
Balance at July 1, 2021, net of taxes	$	(26)	$	(438)	$	(464)
Other comprehensive income (loss), pretax	(3)		(23)		(26)
Tax	—		—		—
Other comprehensive income (loss), net of taxes	(3)		(23)		(26)
Transfer of benefit plans from Merck affiliates	(3)		—		(3)
Balance at September 30, 2021, net of taxes	$	(32)	$	(461)	$	(493)

($ in millions)	Employee Benefit Plans		Cumulative Translation Adjustment		Accumulated Other Comprehensive Income (Loss)
Balance at January 1, 2020, net of taxes	$	(354)	$	(560)	$	(914)
Other comprehensive income (loss), pretax	18		(93)		(75)
Tax	(3)		—		(3)
Other comprehensive income (loss), net of taxes	15		(93)		(78)
Balance at September 30, 2020, net of taxes	$	(339)	$	(653)	$	(992)
Balance at January 1, 2021, net of taxes	$	(32)	$	(590)	$	(622)
Other comprehensive income (loss), pretax	(1)		129		128
Tax	(10)		—		(10)
Other comprehensive income (loss), net of taxes	(11)		129		118
Net transfer of benefit plans to (from) Merck affiliates	11		—		11
Balance at September 30, 2021, net of taxes	$	(32)	$	(461)	$	(493)