Compensation Plans - Departure of Executives (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Severance costs	$ 10
Accounts Payable and Accrued Liabilities
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Severance costs		$ 8	$ 15
General and Administrative Expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Severance costs	$ 33