Debt Under Vehicle Programs And Borrowing Arrangements (Schedule Of Available Funding Under The Vehicle Programs) (Detail) (USD $)	Sep. 30, 2014
Debt Under Vehicle Programs And Borrowing Arrangements [Line Items]
Total Capacity	$ 12,205,000,000
Outstanding Borrowings	9,500,000,000
Available Capacity	2,705,000,000
Debt Due To Avis Budget Rental Car Funding (Member)
Debt Under Vehicle Programs And Borrowing Arrangements [Line Items]
Total Capacity	8,793,000,000
Outstanding Borrowings	6,983,000,000
Available Capacity	1,810,000,000
Leasing Vehicles And Related Assets Pledged As Collateralized Debt	8,700,000,000
Canada Debt Borrowings [Member] [Domain]
Debt Under Vehicle Programs And Borrowing Arrangements [Line Items]
Total Capacity	915,000,000
Outstanding Borrowings	556,000,000
Available Capacity	359,000,000
Leasing Vehicles And Related Assets Pledged As Collateralized Debt	810,000,000
International Debt Borrowings [Domain]
Debt Under Vehicle Programs And Borrowing Arrangements [Line Items]
Total Capacity	1,550,000,000
Outstanding Borrowings	1,231,000,000
Available Capacity	319,000,000
Leasing Vehicles And Related Assets Pledged As Collateralized Debt	1,700,000,000
International Capital Leases [Domain]
Debt Under Vehicle Programs And Borrowing Arrangements [Line Items]
Total Capacity	625,000,000
Outstanding Borrowings	427,000,000
Available Capacity	198,000,000
Budget Truck Financing (Member)
Debt Under Vehicle Programs And Borrowing Arrangements [Line Items]
Total Capacity	280,000,000
Outstanding Borrowings	261,000,000
Available Capacity	19,000,000
Leasing Vehicles And Related Assets Pledged As Collateralized Debt	359,000,000
European Rental Fleet Securitization [Member]
Debt Under Vehicle Programs And Borrowing Arrangements [Line Items]
Leasing Vehicles And Related Assets Pledged As Collateralized Debt	409,000,000
Other (Member)
Debt Under Vehicle Programs And Borrowing Arrangements [Line Items]
Total Capacity	42,000,000
Outstanding Borrowings	42,000,000
Available Capacity	$ 0