Other Comprehensive Income (Loss) (Tables)

9 Months Ended

Sep. 30, 2022

Equity [Abstract]

Changes of AOCI by Component

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

($ in millions)	Employee Benefit Plans		Cumulative Translation Adjustment		Accumulated Other Comprehensive Loss
Balance at July 1, 2021, net of taxes	$	(26)	$	(438)	$	(464)
Other comprehensive loss, pretax	(3)		(23)		(26)
Tax	—		—		—
Other comprehensive 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)
Balance at July 1, 2022, net of taxes	$	(13)	$	(576)	$	(589)
Other comprehensive loss, pretax	—		(97)		(97)
Tax	—		—		—
Other comprehensive loss, net of taxes	—		(97)		(97)
Balance at September 30, 2022, net of taxes	$	(13)	$	(673)	$	(686)

($ in millions)	Employee Benefit Plans		Cumulative Translation Adjustment		Accumulated Other Comprehensive (Loss) Income
Balance at January 1, 2021, net of taxes	$	(32)	$	(590)	$	(622)
Other comprehensive (loss) income, pretax	(1)		129		128
Tax	(10)		—		(10)
Other comprehensive (loss) income, net of taxes	(11)		129		118
Transfer of benefit plans to/from Merck affiliates	11		—		11
Balance at September 30, 2021, net of taxes	$	(32)	$	(461)	$	(493)
Balance at January 1,2022, net of taxes	$	(13)	$	(500)	$	(513)
Other comprehensive loss, pretax	(1)		(173)		(174)
Tax	1		—		1
Other comprehensive loss, net of taxes	—		(173)		(173)
Balance at September 30, 2022, net of taxes	$	(13)	$	(673)	$	(686)