Debt Under Vehicle Programs And Borrowing Arrangements (Schedule Of Debt Under Vehicle Programs) (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014		Dec. 31, 2013
Debt Under Vehicle Programs And Borrowing Arrangements [Line Items]
Debt under vehicle programs	$ 7,999		$ 7,337
Debt Due To Avis Budget Rental Car Funding (Member)
Debt Under Vehicle Programs And Borrowing Arrangements [Line Items]
Debt under vehicle programs	6,359	[1]	5,656	[1]
Canada Debt Borrowings [Member] [Domain]
Debt Under Vehicle Programs And Borrowing Arrangements [Line Items]
Debt under vehicle programs	482	[1],[2]	400	[1],[2]
International Debt Borrowings [Domain]
Debt Under Vehicle Programs And Borrowing Arrangements [Line Items]
Debt under vehicle programs	584	[3]	731	[3]
International Capital Leases [Domain]
Debt Under Vehicle Programs And Borrowing Arrangements [Line Items]
Debt under vehicle programs	353	[1]	289	[1]
Budget Truck Financing (Member)
Debt Under Vehicle Programs And Borrowing Arrangements [Line Items]
Debt under vehicle programs	211		226
Other (Member)
Debt Under Vehicle Programs And Borrowing Arrangements [Line Items]
Debt under vehicle programs	$ 10		$ 35

[1] The increase reflects additional borrowings principally to fund an increase in the Company’s fleet driven by increased rental volume.

[2] The increase reflects additional borrowings principally to fund an increase in the Company’s fleet driven by the acquisition of its Budget licensee for Edmonton.

[3] The decrease is principally related to the timing of borrowings related to recently acquired fleet.