Segment Information - Summary of Geographic Segment Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 11,994	$ 9,313	$ 5,402
Assets exclusive of assets under vehicle programs	8,499	8,581	8,365
Assets under vehicle programs	17,428	14,019	9,173
Net long-lived assets	2,330	2,369	2,568
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	8,975	7,254	3,758
Assets exclusive of assets under vehicle programs	5,622	5,575	5,262
Assets under vehicle programs	13,514	10,915	6,797
Net long-lived assets	1,386	1,328	1,421
All Other Countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	3,019	2,059	1,644
Assets exclusive of assets under vehicle programs	2,877	3,006	3,103
Assets under vehicle programs	3,914	3,104	2,376
Net long-lived assets	$ 944	$ 1,041	$ 1,147