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Debt Under Vehicle Programs And Borrowing Arrangements (Schedule Of Available Funding Under The Vehicle Programs) (Detail) $ in Millions | Mar. 31, 2020 USD ($)
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Debt Under Vehicle Programs And Borrowing Arrangements [Line Items] |
Total Capacity (a) | $ 13,388
Outstanding Borrowings (b) | 12,048
Available Capacity | 1,340
Debt Due To Avis Budget Rental Car Funding (Member) |
Debt Under Vehicle Programs And Borrowing Arrangements [Line Items] |
Total Capacity (a) | 9,392
Outstanding Borrowings (b) | 9,392
Available Capacity | 0
Leasing Vehicles And Related Assets Pledged As Collateralized Debt | 10,500
Americas Debt Borrowings [Member] |
Debt Under Vehicle Programs And Borrowing Arrangements [Line Items] |
Total Capacity (a) | 909
Outstanding Borrowings (b) | 702
Available Capacity | 207
Leasing Vehicles And Related Assets Pledged As Collateralized Debt | 800
International Debt Borrowings [Domain] |
Debt Under Vehicle Programs And Borrowing Arrangements [Line Items] |
Total Capacity (a) | 2,880
Outstanding Borrowings (b) | 1,779
Available Capacity | 1,101
Leasing Vehicles And Related Assets Pledged As Collateralized Debt | 2,100
International Capital Leases [Domain] |
Debt Under Vehicle Programs And Borrowing Arrangements [Line Items] |
Total Capacity (a) | 204
Outstanding Borrowings (b) | 172
Available Capacity | 32
Leasing Vehicles And Related Assets Pledged As Collateralized Debt | 200
Other Debt Obligations [Member] |
Debt Under Vehicle Programs And Borrowing Arrangements [Line Items] |
Total Capacity (a) | 3
Outstanding Borrowings (b) | 3
Available Capacity | $ 0

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- Definition Debt Under Vehicle Programs And Borrowing Arrangements [Line Items] + References No definition available. + Details
Name: | car_DebtUnderVehicleProgramsAndBorrowingArrangementsLineItems
Namespace Prefix: | car_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Leasing Vehicles And Related Assets, Pledged As Collateralized Debt + References No definition available. + Details
Name: | car_LeasingVehiclesAndRelatedAssetsPledgedAsCollateralizedDebt
Namespace Prefix: | car_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Amount borrowed under the vehicle program as of the balance sheet date. + References No definition available. + Details
Name: | car_VehicleProgramDebtAmountOutstanding
Namespace Prefix: | car_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount of borrowing capacity currently available under the vehicle program (current borrowing capacity less the amount of borrowings outstanding). + References No definition available. + Details
Name: | car_VehicleProgramDebtAvailableCapacity
Namespace Prefix: | car_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Maximum borrowing capacity under the vehicle program without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the program. + References No definition available. + Details
Name: | car_VehicleProgramDebtTotalCapacity
Namespace Prefix: | car_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_LongtermDebtTypeAxis=car_AmericasDebtBorrowingsMember
Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_LongtermDebtTypeAxis=car_InternationalDebtBorrowingsDomain
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_OtherDebtSecuritiesMember
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Data Type: | na
Balance Type: |
Period Type: |