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Debt Under Vehicle Programs And Borrowing Arrangements (Schedule Of Available Funding Under The Vehicle Programs) (Detail)
$ in Millions
Sep. 30, 2022
USD ($)
Debt Instrument [Line Items]  
Total Capacity $ 15,739
Outstanding Borrowings 13,157
Available Capacity 2,582
Americas - Debt due to Avis Budget Rental Car Funding | Affiliated Entity  
Debt Instrument [Line Items]  
Total Capacity 12,049
Outstanding Borrowings 10,470
Available Capacity 1,579
Americas - Debt due to Avis Budget Rental Car Funding | Affiliated Entity | Secured Debt  
Debt Instrument [Line Items]  
Outstanding Borrowings 12,700
Americas - Debt borrowings  
Debt Instrument [Line Items]  
Total Capacity 950
Outstanding Borrowings 557
Available Capacity 393
Americas - Debt borrowings | Secured Debt  
Debt Instrument [Line Items]  
Outstanding Borrowings 900
International - Debt borrowings  
Debt Instrument [Line Items]  
Total Capacity 2,439
Outstanding Borrowings 1,865
Available Capacity 574
International - Debt borrowings | Secured Debt  
Debt Instrument [Line Items]  
Outstanding Borrowings 2,600
International - Finance leases  
Debt Instrument [Line Items]  
Total Capacity 190
Outstanding Borrowings 154
Available Capacity 36
International - Finance leases | Secured Debt  
Debt Instrument [Line Items]  
Outstanding Borrowings 200
Other  
Debt Instrument [Line Items]  
Total Capacity 111
Outstanding Borrowings 111
Available Capacity $ 0