Share-Based Payments - Components of Share-Based Compensation Expense (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense—direct	[1]	$ 19	$ 17	$ 37	$ 26
Stock options / stock appreciation rights
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense—direct		3	2	6	3
RSUs / DSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense—direct		11	10	21	17
PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense—direct		$ 5	$ 5	$ 10	$ 6

[1] For the three and six months ended June 30, 2024 and 2023, we capitalized less than $1 million of share-based compensation expense to inventory