XML 54 R44.htm IDEA: XBRL DOCUMENT
v3.19.1

Basis of Presentation Deferred Revenue Rollforward in Basis of Presentation (Details) - USD ($) $ in Millions | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Dec. 31, 2018 | Dec. 31, 2017
Deferred Revenue Rollforward [Line Items] |  |  |  |
Document Period End Date | Mar. 31, 2019 |  |  |
Deferred Revenue | $ 63 | $ 72 | $ 64 | $ 69
Deferred Revenue, Additions | 5 | 7 |  |
Deferred Revenue, Revenue Recognized | (6) | (4) |  |
Accounts Payable and Accrued Liabilities [Member] |  |  |  |
Deferred Revenue Rollforward [Line Items] |  |  |  |
Deferred Revenue | 18 | 18 |  |
Other Noncurrent Liabilities [Member] |  |  |  |
Deferred Revenue Rollforward [Line Items] |  |  |  |
Deferred Revenue | $ 45 | 54 |  |
Prepaid Rentals and Membership Fees [Member] |  |  |  |
Deferred Revenue Rollforward [Line Items] |  |  |  |
Deferred Revenue |  | 178 |  | $ 125
Deferred Revenue, Additions |  | 412 |  |
Deferred Revenue, Revenue Recognized |  | (359) |  |
Prepaid Rentals and Membership Fees [Member] | Accounts Payable and Accrued Liabilities [Member] |  |  |  |
Deferred Revenue Rollforward [Line Items] |  |  |  |
Deferred Revenue |  | 176 |  |
Prepaid Rentals and Membership Fees [Member] | Other Noncurrent Liabilities [Member] |  |  |  |
Deferred Revenue Rollforward [Line Items] |  |  |  |
Deferred Revenue |  | $ 2 |  |

X
- Definition [Line Items] for Deferred Revenue Rollforward [Table] + References No definition available. + Details
Name: | car_DeferredRevenueRollforwardLineItems
Namespace Prefix: | car_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD. + References No definition available. + Details
Name: | dei_DocumentPeriodEndDate
Namespace Prefix: | dei_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of deferred revenue as of balance sheet date. Deferred revenue represents collections of cash or other assets related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. + References No definition available. + Details
Name: | us-gaap_DeferredRevenue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of deferred revenue recognized for transactions arising during the current reporting period. Deferred revenue is a liability as of the balance sheet date related to a revenue producing activity for which revenue has not yet been recognized. Generally, an Entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. + References No definition available. + Details
Name: | us-gaap_DeferredRevenueAdditions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of revenue recognized that was previously reported as deferred or unearned revenue. + References No definition available. + Details
Name: | us-gaap_DeferredRevenueRevenueRecognized1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_AccountsPayableAndAccruedLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_OtherNoncurrentLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DeferredRevenueArrangementTypeAxis=car_PrepaidRentalsandMembershipFeesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |