Debt Under Vehicle Programs And Borrowing Arrangements (Schedule Of Debt Under Vehicle Programs) (Detail) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Debt under vehicle programs	$ 14,098	$ 11,390
Deferred financing fees	50	48
Americas - Debt due to Avis Budget Rental Car Funding
Debt Instrument [Line Items]
Debt under vehicle programs	11,377	8,889
Americas - Debt borrowings
Debt Instrument [Line Items]
Debt under vehicle programs	588	612
International - Debt borrowings
Debt Instrument [Line Items]
Debt under vehicle programs	1,947	1,757
International - Finance leases
Debt Instrument [Line Items]
Debt under vehicle programs	170	177
Other
Debt Instrument [Line Items]
Debt under vehicle programs	68	3
Deferred financing fees
Debt Instrument [Line Items]
Deferred financing fees	(52)	(48)
Avis budget rental car funding | Deferred financing fees
Debt Instrument [Line Items]
Deferred financing fees	$ 46	$ 41