XML 97 R64.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Restructuring Restructuring Other Related Charges (Details) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2017 USD ($) Employee
Other Related Charges [Abstract] |
Other Nonrecurring Expense | $ 7
Share-based Compensation Arrangement by Share-based Payment Award Accelerated Compensation Cost | 2
Charges related to voluntary termination program | $ 16
Charges related to voluntary termination program, Expected Number of Positions Eliminated | Employee | 355
Charges related to voluntary termination program, Number of Positions Eliminated | Employee | 340

X
- Definition Charges related to voluntary termination program + References No definition available. + Details
Name: | car_Chargesrelatedtovoluntaryterminationprogram
Namespace Prefix: | car_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Charges related to voluntary termination program, Expected Number of Positions Eliminated + References No definition available. + Details
Name: | car_ChargesrelatedtovoluntaryterminationprogramExpectedNumberofPositionsEliminated
Namespace Prefix: | car_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Charges related to voluntary termination program, Number of Positions Eliminated + References No definition available. + Details
Name: | car_ChargesrelatedtovoluntaryterminationprogramNumberofPositionsEliminated
Namespace Prefix: | car_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Other Related Charges [Abstract] + References No definition available. + Details
Name: | car_OtherRelatedChargesAbstract
Namespace Prefix: | car_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of other expense that is infrequent in occurrence or unusual in nature. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=64828382&loc=d3e15138-107781 + Details
Name: | us-gaap_OtherNonrecurringExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Additional share-based compensation cost recognized as a result of an occurrence of an event that accelerates its recognition. + References No definition available. + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedCompensationCost
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration