Income Taxes - Schedule of Components of Net Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Deferred tax assets
Depreciation	$ 8	$ 8
R&D capitalization	73	24
Employee benefits	232	240
Loss provisions	11	28
Deferred income/expense	46	32
Interest	6	32
Tax loss carryforwards	1,941	2,905
Tax credit carryforwards	110	216
Other	5	10
Deferred tax assets, gross	2,432	3,495
Valuation allowance	(1,705)	(1,821)	$ (1,965)	$ (2,279)
Deferred tax assets, net	727	1,674
Deferred tax liabilities
Depreciation	529	510
R&D capitalization	0	0
Employee benefits	9	4
Loss provisions	2	1
Deferred income/expense	293	1,210
Interest	0	0
Tax loss carryforwards	0	0
Tax credit carryforwards	0	0
Other	8	4
Deferred tax liabilities, gross	$ 841	$ 1,729