Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 3,601	$ 3,508	$ 3,577
Other comprehensive (loss) income:
Tax (expense) benefit			5
Total Other comprehensive income, net of tax	11	22	80
Ending balance	4,037	3,601	3,508
Accumulated other comprehensive loss
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(1,841)	(1,863)	(1,943)
Other comprehensive (loss) income:
Total Other comprehensive income, net of tax	11	22	80
Ending balance	(1,830)	(1,841)	(1,863)
Pension and other postretirement benefits (E)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(653)	(799)	(980)
Other comprehensive (loss) income:
Other comprehensive gain (loss) income, before reclassifications, before tax	(68)	87	111
Tax benefit (expense)	15	(18)	(26)
Total Other comprehensive (loss) income before reclassifications, net of tax	(53)	69	85
Net amount reclassified to earnings	21	99	123
Tax (expense) benefit	(4)	(22)	(27)
Total amount reclassified from Accumulated other comprehensive loss, net of tax	17	77	96
Total Other comprehensive income, net of tax	(36)	146	181
Ending balance	(689)	(653)	(799)
Foreign currency translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(1,193)	(1,062)	(966)
Other comprehensive (loss) income:
Total Other comprehensive income, net of tax	57	(131)	(96)
Ending balance	(1,136)	(1,193)	(1,062)
Cash flow hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	5	(2)	3
Other comprehensive (loss) income:
Other comprehensive gain (loss) income, before reclassifications, before tax	(19)	(8)	20
Tax benefit (expense)	4	2	(4)
Total Other comprehensive (loss) income before reclassifications, net of tax	(15)	(6)	16
Net amount reclassified to earnings	6	17	(26)
Tax (expense) benefit	(1)	(4)
Total amount reclassified from Accumulated other comprehensive loss, net of tax	5	13	(21)
Total Other comprehensive income, net of tax	(10)	7	(5)
Ending balance	$ (5)	$ 5	$ (2)