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Financial Instruments (Schedule Of Effect Of Derivatives Recognized) (Detail) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Dec. 31, 2018
Schedule of Cost-method Investments [Line Items] (Deprecated 2018-01-31) |  |  |
Short-term debt and current portion of long-term debt | $ 23 |  | $ 23
Derivatives not designated as hedging instruments | 12 | $ (16) |
Debt due to Avis Budget Rental Car Funding (AESOP) LLC—related party | 8,540 |  | $ 7,358
Interest Rate Swaps [Member] |  |  |
Schedule of Cost-method Investments [Line Items] (Deprecated 2018-01-31) |  |  |
Derivative, Notional Amount | 1,500 |  |
Designated As Hedging Instruments [Member] | Interest Rate Swaps [Member] |  |  |
Schedule of Cost-method Investments [Line Items] (Deprecated 2018-01-31) |  |  |
Interest rate swaps | (8) | 6 |
Designated As Hedging Instruments [Member] | Foreign Exchange Contracts [Member] |  |  |
Schedule of Cost-method Investments [Line Items] (Deprecated 2018-01-31) |  |  |
Interest rate swaps | 16 | (13) |
Not Designated As Hedging Instruments [Member] | Foreign Exchange Contracts [Member] |  |  |
Schedule of Cost-method Investments [Line Items] (Deprecated 2018-01-31) |  |  |
Derivatives not designated as hedging instruments | 1 | (9) |
Not Designated As Hedging Instruments [Member] | Commodity Contracts [Member] |  |  |
Schedule of Cost-method Investments [Line Items] (Deprecated 2018-01-31) |  |  |
Derivatives not designated as hedging instruments | 3 | 0 |
Operating Expense [Member] |  |  |
Schedule of Cost-method Investments [Line Items] (Deprecated 2018-01-31) |  |  |
Derivatives not designated as hedging instruments | 5 | 4 |
Interest Expense [Member] |  |  |
Schedule of Cost-method Investments [Line Items] (Deprecated 2018-01-31) |  |  |
Derivatives not designated as hedging instruments | $ 4 | $ 13 |

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- Definition Carrying amount as of the balance sheet date of obligations due to Avis Budget Rental Car Funding (AESOP) LLC- a related party, for rental vehicles. + References No definition available. + Details
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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19,20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount before tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=114867106&loc=d3e637-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109978405&loc=d3e80720-113993 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669646-108580 + Details
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