Goodwill and Other Intangible Assets (Other Intangible Assets Associated with Acquisition) (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Net Carrying Amount	$ 744	$ 670
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Weighted-Average Remaining Amortization Period	6 years	6 years
Net Carrying Amount	$ 643	$ 549
General Finance Corporation | Customer relationships
Finite-Lived Intangible Assets [Line Items]
Weighted-Average Remaining Amortization Period	6 years
Net Carrying Amount	$ 139