Leases - Depreciation Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Lessor, Lease, Description [Line Items]
Corporate assets	$ 38	$ 39
General and Administrative Expense
Lessor, Lease, Description [Line Items]
Depreciation expense related to corporate assets	2	3	$ 3
Other Assets
Lessor, Lease, Description [Line Items]
Accumulated depreciation related to corporate assets	$ 8	$ 10