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Components Of Vehicle Depreciation And Lease Charges (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Vehicle Depreciation and Lease Charges, Net [Line Items] |  |  |
Depreciation expense | $ 1,947 | $ 1,877 | $ 1,837
Lease charges | 222 | 180 | 156
(Gain) loss on sale of vehicles, net | 52 | (10) | (60)
Vehicle depreciation and lease charges, net | 2,221 | 2,047 | 1,933
Accounts Payable, Other, Current | 346 | 321 | 269
Receivables due from former subsidiaries | $ 545 | $ 520 | $ 433

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- Definition Gain on sales of vehicles, net including the cost of the vehicle disposition, for vehicles used in rental activities. + References No definition available. + Details
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- Definition Vehicle Depreciation And Lease Charges, Net + References No definition available. + Details
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- Definition Vehicle Depreciation and Lease Charges, Net [Line Items] + References No definition available. + Details
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- Definition Amount of depreciation expense recorded on rental vehicles. + References No definition available. + Details
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- Definition Amount of lease charges recorded on rental vehicles. + References No definition available. + Details
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- Definition Amount of obligations incurred classified as other, payable within one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=82887183&loc=d3e6935-107765 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(a)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount due from parties in nontrade transactions, classified as other. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.8) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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