Restructuring and Other Charges - Schedule of Restructuring and Other Charges by Reportable Segments, Pretax (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Jun. 30, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Restructuring Reserve [Roll Forward]
Restructuring reserve beginning balance		$ 8	$ 19	$ 54
Cash payments		(6)	(16)	(43)
Restructuring and other charges		23	56	90
Other		(18)	(51)	(82)
Restructuring reserve ending balance		7	8	19
Pension and other post-retirement benefits - net settlement (G)		5	58	75
Other charges		3	6	4
Asset impairment charges		14	1	15
Pension benefits
Restructuring Reserve [Roll Forward]
Pension and other post-retirement benefits - net settlement (G)	$ 3	5	58	69
Layoff costs
Restructuring Reserve [Roll Forward]
Restructuring reserve beginning balance		6	17	54
Cash payments		(3)	(9)	(41)
Restructuring and other charges		7	56	79
Other		(5)	(58)	(75)
Restructuring reserve ending balance		5	6	17
Layoff costs | Pension benefits | U.S. and U.K.
Restructuring Reserve [Roll Forward]
Pension and other post-retirement benefits - net settlement (G)			58	75
Layoff costs | Pension benefits | U.S. and Canada
Restructuring Reserve [Roll Forward]
Pension and other post-retirement benefits - net settlement (G)		5
Other exit costs
Restructuring Reserve [Roll Forward]
Restructuring reserve beginning balance		2	2	0
Cash payments		(3)	(7)	(2)
Restructuring and other charges		16	0	11
Other		(13)	7	(7)
Restructuring reserve ending balance		2	2	2
Accelerated depreciation		2	1	15
Other charges				4
Gain (loss) on sale of assets		1	$ 8	$ 12
Asset impairment charges		$ 12