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Debt Under Vehicle Programs And Borrowing Arrangements (Schedule Of Available Funding Under The Vehicle Programs) (Detail)
$ in Millions
Jun. 30, 2021
USD ($)
Debt Instrument [Line Items]  
Total Capacity $ 13,896
Outstanding Borrowings 10,457
Available Capacity 3,439
Americas - Debt due to Avis Budget Rental Car Funding | Affiliated Entity  
Debt Instrument [Line Items]  
Total Capacity 10,346
Outstanding Borrowings 8,216
Available Capacity 2,130
Americas - Debt due to Avis Budget Rental Car Funding | Affiliated Entity | Secured Debt  
Debt Instrument [Line Items]  
Outstanding Borrowings 9,200
Americas - Debt borrowings  
Debt Instrument [Line Items]  
Total Capacity 746
Outstanding Borrowings 622
Available Capacity 124
Americas - Debt borrowings | Secured Debt  
Debt Instrument [Line Items]  
Outstanding Borrowings 800
International - Debt borrowings  
Debt Instrument [Line Items]  
Total Capacity 2,607
Outstanding Borrowings 1,443
Available Capacity 1,164
International - Debt borrowings | Secured Debt  
Debt Instrument [Line Items]  
Outstanding Borrowings 1,700
International - Finance leases  
Debt Instrument [Line Items]  
Total Capacity 196
Outstanding Borrowings 175
Available Capacity 21
International - Finance leases | Secured Debt  
Debt Instrument [Line Items]  
Outstanding Borrowings 200
Other  
Debt Instrument [Line Items]  
Total Capacity 1
Outstanding Borrowings 1
Available Capacity $ 0