Incentive Plans - Schedule of Compensation Expense for Each Type of Incentive Award (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 25	$ 26	$ 81	$ 76
Capitalized share-based compensation expense	5	5	14	14
Equity Awards (a)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	13	11	42	33
Liability Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	5	6	11	17
Amount of liabilities attributable to liability awards included in accounts payable	2		2		$ 6
Performance Awards (a)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	6	8	25	24
ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 1	$ 1	$ 3	$ 2