Segment Information - Reconciliation of Operating Profit (Loss) from Segments to Consolidated (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	$ 7,671	$ 2,915	$ 13,570	$ 9,231
Adjusted EBITDA	1,307	551	2,315	1,756
Unallocated corporate costs	(42)	(26)	(95)	(74)
Depreciation, depletion and amortization	(564)	(147)	(872)	(430)
Interest expense, net	167	39	225	109
Pension and other postretirement non-service benefit (expense), net	8	(9)	(31)	(29)
Share-based compensation expense	(123)	(7)	(154)	(43)
Other expense, net	(13)	(4)	(13)	(19)
Amortization of fair value step up on inventory	(227)	0	(227)	0
Transaction and integration-related expenses associated with the Combination	(267)	(17)	(350)	(17)
Other adjustments	(29)	0	(11)	0
(Loss) income before income taxes	(117)	302	337	1,035
Europe, MEA and APAC
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	2,646	2,188	7,043	7,038
North America
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	4,531	401	5,380	1,239
LATAM
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	494	326	1,147	954
Operating segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	7,806	2,933	13,742	9,286
Operating segments | Europe, MEA and APAC
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	2,651	2,191	7,056	7,047
Adjusted EBITDA	411	411	1,158	1,330
Operating segments | North America
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	4,649	401	5,499	1,239
Adjusted EBITDA	780	66	900	209
Operating segments | LATAM
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	506	341	1,187	1,000
Adjusted EBITDA	116	74	257	217
Intersegment eliminations
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	135	18	172	55
Intersegment eliminations | Europe, MEA and APAC
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	5	3	13	9
Intersegment eliminations | North America
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	118	0	119	0
Intersegment eliminations | LATAM
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	$ 12	$ 15	$ 40	$ 46