Debt Under Vehicle Programs And Borrowing Arrangements (Schedule Of Available Funding Under The Vehicle Programs) (Detail) (USD $) In Millions, unless otherwise specified	Jun. 30, 2012
Debt Under Vehicle Programs And Borrowing Arrangements [Line Items]
Total Capacity	$ 9,547	[1]
Outstanding Borrowings	8,295
Available Capacity	1,252
Debt Due To Avis Budget Rental Car Funding (Member)
Debt Under Vehicle Programs And Borrowing Arrangements [Line Items]
Total Capacity	7,178	[1],[2]
Outstanding Borrowings	6,268	[2]
Available Capacity	910	[2]
Leasing vehicles and related assets, pledged as collateralized debt	790
Budget Truck Financing (Member)
Debt Under Vehicle Programs And Borrowing Arrangements [Line Items]
Total Capacity	308	[1],[3]
Outstanding Borrowings	293	[3]
Available Capacity	15	[3]
Leasing vehicles and related assets, pledged as collateralized debt	432
Capital Leases (Member)
Debt Under Vehicle Programs And Borrowing Arrangements [Line Items]
Total Capacity	578	[1]
Outstanding Borrowings	528
Available Capacity	50
Other (Member)
Debt Under Vehicle Programs And Borrowing Arrangements [Line Items]
Total Capacity	1,483	[1],[4]
Outstanding Borrowings	1,206	[4]
Available Capacity	277	[4]
Leasing vehicles and related assets, pledged as collateralized debt	$ 250

[1] Capacity is subject to maintaining sufficient assets to collateralize debt.

[2] The outstanding debt is collateralized by approximately $7.9 billion of underlying vehicles and related assets.

[3] The outstanding debt is collateralized by $432 million of underlying vehicles and related assets.

[4] The outstanding debt is collateralized by approximately $2.5 billion of underlying vehicles and related assets.