Debt Facilities - Mortgage and Loans Payable (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Loans payable, gross	$ 694	$ 672
Less amount representing unamortized debt issuance costs and debt discounts	(1)	(1)
Loans payable current and non current	693	671
Less current portion	(5)	(8)
Total	688	663
Term loans
Debt Instrument [Line Items]
Loans payable, gross	670	643
Mortgage payable and other loans payable
Debt Instrument [Line Items]
Loans payable, gross	$ 24	$ 29