Debt Under Vehicle Programs And Borrowing Arrangements (Schedule Of Debt Under Vehicle Programs) (Detail) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Debt under vehicle programs	$ 13,104	$ 11,390
Deferred financing fees	47	48
Americas - Debt due to Avis Budget Rental Car Funding
Debt Instrument [Line Items]
Debt under vehicle programs	10,470	8,889
Americas - Debt borrowings
Debt Instrument [Line Items]
Debt under vehicle programs	557	612
International - Debt borrowings
Debt Instrument [Line Items]
Debt under vehicle programs	1,865	1,757
International - Finance leases
Debt Instrument [Line Items]
Debt under vehicle programs	154	177
Other
Debt Instrument [Line Items]
Debt under vehicle programs	111	3
Deferred Financing Fees
Debt Instrument [Line Items]
Deferred financing fees	(53)	(48)
Avis Budget Rental Car Funding | Deferred Financing Fees
Debt Instrument [Line Items]
Deferred financing fees	$ 48	$ 41