Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 4,037	$ 3,601	$ 3,508
Other comprehensive (loss) income:
Tax (expense) benefit			(4)
Total Other comprehensive (loss) income, net of tax	(48)	11	22
Ending balance	4,554	4,037	3,601
Accumulated other comprehensive loss
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(1,830)	(1,841)	(1,863)
Other comprehensive (loss) income:
Total Other comprehensive (loss) income, net of tax	(48)	11	22
Ending balance	(1,878)	(1,830)	(1,841)
Pension and other postretirement benefits
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(689)	(653)	(799)
Other comprehensive (loss) income:
Other comprehensive gain (loss) income, before reclassifications, before tax	3	(68)	87
Tax (expense) benefit	(1)	15	(18)
Total Other comprehensive (loss) income before reclassifications, net of tax	2	(53)	69
Net amount reclassified to earnings (5)	19	21	99
Tax (expense) benefit	(4)	(4)	(22)
Total amount reclassified from Accumulated other comprehensive loss, net of tax	15	17	77
Total Other comprehensive (loss) income, net of tax	17	(36)	146
Ending balance	(672)	(689)	(653)
Foreign currency translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(1,136)	(1,193)	(1,062)
Other comprehensive (loss) income:
Total Other comprehensive (loss) income, net of tax	(71)	57	(131)
Ending balance	(1,207)	(1,136)	(1,193)
Cash flow hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(5)	5	(2)
Other comprehensive (loss) income:
Other comprehensive gain (loss) income, before reclassifications, before tax	0	(19)	(8)
Tax (expense) benefit	0	4	2
Total Other comprehensive (loss) income before reclassifications, net of tax	0	(15)	(6)
Net amount reclassified to earnings (5)	8	6	17
Tax (expense) benefit	(2)	(1)
Total amount reclassified from Accumulated other comprehensive loss, net of tax	6	5	13
Total Other comprehensive (loss) income, net of tax	6	(10)	7
Ending balance	$ 1	$ (5)	$ 5