Share-based Payments - Components of Share-Based Compensation Expense (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense—direct	[1]	$ 22	$ 18	$ 61	$ 55
Share-based compensation expense capitalized to inventory, less than		1	1	1	1
Stock options / stock appreciation rights
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense—direct		3	2	9	8
RSUs / DSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense—direct		14	10	38	31
PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense—direct		$ 5	$ 6	$ 14	$ 16

[1] For the three and nine months ended September 30, 2025 and 2024, we capitalized less than $1 million of share-based compensation expense to inventory