Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Total Capacity Line of Credit Facility, Maximum Borrowing Capacity Net change in assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Valuation period Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period Award Type [Domain] Award Type [Domain] Fair Value as of Grant Date Award Grant Date Fair Value Investment, Name [Domain] Investment, Name [Domain] Revenue recognition period Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Aggregate interest rate Line of Credit Facility, Interest Rate at Period End Debt due to Avis Budget Rental Car Funding (AESOP) LLC—related party Debt Due To Avis Budget Rental Car Funding Aesop Llc Related Party 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. Schedule of Net Funded Status Schedule of Net Funded Status [Table Text Block] Avis Budget Rental Car Funding Program April 2027 Avis Budget Rental Car Funding Program April 2027 [Member] Avis Budget Rental Car Funding Program April 2027 Gain on write down of assets held for sale Disposal Group, Not Discontinued Operation, Loss (Gain) on Write-down Stock-based compensation Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-Based Payment Arrangement, Percent Insider Trading Policies and Procedures [Line Items] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Between 4 and 5 years Lessee, Operating Lease, Liability, to be Paid, Year Five Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Stockholders' Equity Equity [Text Block] Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Vehicles held for sale Vehicles Held For Sale The recorded value of rental vehicles held for sale, net of accumulated depreciation. Ownership [Axis] Ownership [Axis] Dividend yield Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate Adjusted EBITDA Adjusted Earnings Before Income Depreciation And Amortization Adjusted earnings before non-vehicle related depreciation and amortization, any impairment charge, restructuring and other related charges, early extinguishment of debt costs, non-vehicle related interest, transaction-related costs, net charges for an unprecedented personal-injury legal matters, non-operational charges related to shareholder activist activity and income taxes. Vehicle Programs, Net Vehicle Programs, Net [Member] Vehicle programs, net [Member] Schedule of Assumptions Used to Determine Pension Obligations and Pension Costs Defined Benefit Plan, Assumptions [Table Text Block] Current liabilities: Liabilities, Current [Abstract] Proceeds from long-term borrowings Proceeds From Long Term Borrowings The cash inflow from a borrowing having initial term of repayment of more than one year or the normal operating cycle, if longer; and/or the cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. Federal Deferred Federal Income Tax Expense (Benefit) Accumulated impairment losses as of January 1, 2022 Goodwill, Impaired, Accumulated Impairment Loss Preferred stock, $.01 par value—authorized 10 shares; none issued and outstanding Preferred Stock, Value, Issued Subsequent Event Type [Domain] Subsequent Event Type [Domain] Diluted (in USD per share) Earnings Per Share, Diluted Summary Of Significant Accounting Policies [Line Items] Summary Of Significant Accounting Policies [Line Items] Summary Of Significant Accounting Policies [Line Items] Reclassification of cash flow hedges to earnings, net of tax of $5, $(2), and $(5), respectively Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax Line of Credit Line of Credit [Member] Purchase obligation over the next twelve months Recorded Unconditional Purchase Obligation, to be Paid, Year One Schedule of Net Periodic Benefit Cost Schedule of Net Benefit Costs [Table Text Block] SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] Trading Symbol Trading Symbol Letters of Credit Issued Letters of Credit Outstanding, Amount Restructuring Plan [Domain] Restructuring Plan [Domain] Vehicle depreciation Vehicle Depreciation The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes vehicle related depreciation. Adjustments to reconcile to the effective rate: Effective Income Tax Rate Reconciliation, Percent [Abstract] Debt Securities Debt Securities [Member] McNicoll Vehicle Hire McNicoll Vehicle Hire [Member] McNicoll Vehicle Hire Indefinite-lived Intangible Assets, Major Class Name [Domain] Indefinite-Lived Intangible Assets, Major Class Name [Domain] Schedule of Cash and Cash Equivalents Schedule of Cash and Cash Equivalents [Table Text Block] Net benefits paid Defined Benefit Plan, Plan Assets, Benefits Paid Proceeds from borrowings Proceeds From Borrowings From Financing Activities Within Vehicle Programs The net cash inflow (outflow) in aggregate debt due to repayments and proceeds from additional borrowings related to vehicle programs Restructuring payment/utilization: Payment For Restructuring/Utilization Payment For Restructuring/Utilization 5.125% Senior Notes Five Point One Two Five Percent Senior Notes Due 2022 [Member] Five Point One Two Five Percent Senior Notes Due 2022 Beginning balance Ending balance Contract with Customer, Liability Other Other Intangible Assets [Member] Schedule of Computation of Basic and Diluted Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Service cost Defined Benefit Plan, Service Cost Executive Category: Executive Category [Axis] Earnings per share: Earnings (loss) Per Share [Abstract] Earnings (loss) Per Share Number of Shares Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Level 1 Fair Value, Inputs, Level 1 [Member] Deferred income tax assets Deferred Tax Assets, Net of Valuation Allowance Carrying Amount Reported Value Measurement [Member] Executive Vice President And Chief Digital And Innovation Officer Executive Vice President [Member] Schedule of Property and Equipment, Net Property, Plant and Equipment [Table Text Block] Equity Components [Axis] Equity Components [Axis] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Shares available for grant under the plan (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant Receivables from vehicle manufacturers and other Receivables From Vehicle Manufacturers And Other Amounts due from vehicle manufacturers and others related to sale of rental vehicles, that have been delivered or sold in the normal course of business. 2025 2025 Long-Term Debt, Maturity, Year Two Entity Small Business Entity Small Business Intangible assets amortization expense, year four Finite-Lived Intangible Asset, Expected Amortization, Year Four Local Phone Number Local Phone Number Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Between 4 and 5 years Finance Lease, Liability, to be Paid, Year Five Notional amount Derivative, Notional Amount Alternative Investment Alternative Investment [Member] Alternative Investment Time-based RSUs Restricted Stock Units (RSUs) [Member] Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Trademarks Trademarks [Member] Retirement Benefits [Abstract] Retirement Benefits [Abstract] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Rental vehicles Rental Vehicles The cost of vehicles used in rental activities. Line of Credit Facility [Table] Line of Credit Facility [Table] Schedule of Long-term Debt Instruments Schedule of Debt Issued by AESOP Schedule of Long-Term Debt Instruments [Table Text Block] (Gain) loss on sale of vehicles, net Gain Loss On Sale Of Vehicles Net And Cost Of Vehicle Disposition Gain Loss On Sale Of Vehicles Net And Cost Of Vehicle Disposition Contract With Customer, Liability [Roll Forward] Contract With Customer, Liability [Roll Forward] Contract With Customer, Liability Non-vehicle related depreciation and amortization Non Vehicle Related Depreciation And Amortization, Excluding Cloud Computing Expense Non Vehicle Related Depreciation And Amortization, Excluding Cloud Computing Expense Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] Variable Interest Entity (“VIE”) Consolidation, Variable Interest Entity, Policy [Policy Text Block] Revenues Revenues Prepaid expenses Deferred Tax Liabilities, Prepaid Expenses Schedule of Accounts Payable and Accrued Liabilities Schedule of Accounts Payable and Accrued Liabilities [Table Text Block] Schedule of Outstanding Common Stock Equivalents That Were Anti-Dilutive Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Investment in Avis Budget Rental Car Funding (AESOP) LLC—related party Investment In Related Party Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. (D) Investment in off-BS unconsolidated entity that issues notes to investors and bank conduit facilities. Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Domestic Plan Domestic Plan [Member] Assets under vehicle programs: Assets Under Vehicle Programs [Abstract] Assets under vehicle program Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] U.S. equities Domestic Stock [Member] Domestic stock [Member] Balance, beginning Balance, ending Restructuring Reserve Award Type [Axis] Award Type [Axis] Anti-dilutive non-vested stock (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] ICFR Auditor Attestation Flag ICFR Auditor Attestation Flag Hedging Designation Hedging Designation [Axis] Property and equipment, gross Property, Plant and Equipment, Gross Goodwill [Line Items] Goodwill [Line Items] Operating leases Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Related Party Transactions Related Party Transactions Disclosure [Text Block] Less: Imputed interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Employer contributions Defined Benefit Plan, Plan Assets, Contributions by Employer PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Leases Lessee, Finance Leases [Text Block] Expected return on plan assets Defined Benefit Plan, Expected Return (Loss) on Plan Assets Depreciation and amortization Deferred Tax Assets Depreciation And Amortization Deferred tax assets depreciation and amortization Asia and Australasia Asia and Australasia [Member] Asia and Australasia [Member] Schedule of Provision for (Benefit From) Income Taxes Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Floating Rate Term Loan Floating Rate Term Loan Due August Two Thousand Twenty Seven [Member] Floating Rate Term Loan Due February Two Thousand Twenty Five [Member] Prepaid expenses Prepaid Expense, Current Short-term operating lease liabilities Short-term operating lease liabilities Operating Lease, Liability, Current Interest on lease liabilities Finance Lease, Interest Expense Capitalized software Computer Software, Intangible Asset [Member] 6.375% senior notes Six Point Three Seven Five Percent Senior Notes [Member] Six Point Three Seven Five Percent Senior Notes Between 2 and 3 years Lessee, Operating Lease, Liability, to be Paid, Year Three Foreign currency translation Unrecognized Tax Benefits, Decrease Resulting from Foreign Currency Translation Net Carrying Amount Finite-Lived Intangible Assets, Net Property And Equipment, Net [Line Items] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Recently Issued Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Expected company contributions Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year Counterparty Name [Domain] Counterparty Name [Domain] 10. 500% senior secured notes Ten Point Five Percent Senior Secured Notes Due 2025 [Member] Ten Point Five Percent Senior Secured Notes Due 2025 Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Between 1 and 2 years Lessee, Operating Lease, Liability, to be Paid, Year Two Vehicle-backed debt Debt Instrument, Fair Value Disclosure Schedule of Pretax Income (Loss) for Domestic and Foreign Operations Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Foreign Income (Loss) from Continuing Operations before Income Taxes, Foreign Business combination, consideration transferred Business Combination, Consideration Transferred Deferred lease revenues – current Contract with Customer, Liability, Current Security Exchange Name Security Exchange Name Share-based Compensation Share-Based Payment Arrangement [Policy Text Block] Non-vehicle related depreciation and amortization Non-vehicle related depreciation and amortization Non Vehicle Related Depreciation And Amortization The expense recognized in the current period that allocates the cost of non-revenue generating tangible assets over their useful lives. International International [Member] International [Member] Selling, general and administrative Selling, General and Administrative Expense Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Other comprehensive income (loss) before reclassifications Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Employee Stock Option Employee Stock Option [Member] Cloud computing costs Non Vehicle Related Depreciation, Excluding Certain Cost Non Vehicle Related Depreciation, Excluding Certain Cost Investments Investment, Policy [Policy Text Block] Total expenses Costs and Expenses Repurchased face amount Debt Instrument, Repurchased Face Amount Income Tax Examination [Table] Income Tax Examination [Table] Maximum Maximum [Member] Range of possible loss (up to) Loss Contingency, Range of Possible Loss, Portion Not Accrued Cost not yet recognized Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Document Type Document Type Acquisitions Goodwill, Acquired During Period Tabular List, Table Tabular List [Table Text Block] 4.750% Senior Notes Four Point Seven Five Percent Senior Notes Due 2028 [Member] Four Point Seven Five Percent Senior Notes Due 2028 Foreign exchange contracts Currency Swap [Member] Europe, Middle East and Africa Europe, Middle East and Africa EMEA [Member] Repurchases of common stock Treasury Stock, Value, Acquired, Cost Method Company Subsidiary Company Subsidiary [Member] Company Subsidiary Thereafter Long-Term Debt, Maturity, after Year Five Between 2 and 3 years Finance Lease, Liability, to be Paid, Year Three Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Stock-Based Compensation Share-Based Payment Arrangement [Text Block] Federal Current Federal Tax Expense (Benefit) Asset-backed securities, at carrying value Asset-Backed Securities, at Carrying Value Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Business Acquisition [Axis] Business Acquisition [Axis] Supplemental Balance Sheet Information Related to Leases [Line Items] Supplemental Balance Sheet Information Related to Leases [Line Items] [Line Items] for Supplemental balance sheet information related to leases [Table] Receivable Accounts Receivable, Allowance for Credit Loss, Current Schedule of Line of Credit Facilities Schedule of Line of Credit Facilities [Table Text Block] State Deferred State and Local Income Tax Expense (Benefit) Variable Rate [Axis] Variable Rate [Axis] Accounts payable and other current liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Sales and use taxes Value Added Tax Receivable, Current Title of 12(b) Security Title of 12(b) Security Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] T22 T22 [Member] T22 Actuarial (gain) loss Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss) Related Party [Domain] Related Party, Type [Domain] Sublease income Sublease Income Acquisitions Business Combination Disclosure [Text Block] Gross Carrying Amount Indefinite-Lived Intangible Assets (Excluding Goodwill) Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Balance (in dollars per share) Balance (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Total assets exclusive of assets under vehicle programs Total Assets Exclusive Of Assets Under Vehicle Programs Sum of the carrying amounts as of the balance sheet date of all assets excluding assets relating to assets under vehicle programs that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Fixed interest rate Derivative, Fixed Interest Rate Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Share-based Payment Arrangement [Abstract] Share-Based Payment Arrangement [Abstract] Brazil Brazil Restructuring [Member] Brazil Restructuring [Member] Entity Tax Identification Number Entity Tax Identification Number Total vehicle lease expense Lease, Cost Statistical Measurement [Axis] Statistical Measurement [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] 5.250% senior notes Five Point Two Five Percent Senior Notes Due 2025 [Member] Five Point Two Five Percent Senior Notes Due 2025 Entity Interactive Data Current Entity Interactive Data Current Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Long-term Corporate Debt and Borrowing Arrangements Long-Term Debt [Text Block] Liabilities accrued for asset retirement obligations Asset Retirement Obligation Goodwill and Other Intangible Assets Goodwill and Intangible Assets, Policy [Policy Text Block] Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Other assets Other Assets [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Measure: Measure [Axis] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Name Outstanding Recovery, Individual Name Revenue Recognition and Deferred Revenue Revenue from Contract with Customer [Policy Text Block] Realogy Realogy Corporation [Member] Realogy Corporation [Member] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Leasing’s vehicles and related assets Leasing Vehicles And Related Assets Pledged As Collateralized Debt Leasing Vehicles And Related Assets, Pledged As Collateralized Debt Advertising expense Advertising Expense Other Other Long-Term Debt Issued percentage of face value Debt Instrument, Portion Of Face Value, Percentage Debt Instrument, Portion Of Face Value, Percentage Assets held for sale Disposal Group, Including Discontinued Operation, Assets Schedule of Deferred Income Tax Assets and Liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Counterparty Name [Axis] Counterparty Name [Axis] Schedule of Carrying Amounts and Estimated Fair Values Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block] Derivative Instruments Derivatives, Policy [Policy Text Block] COVID-19 charges Unusual Or Infrequent Items Or Both, Covid Charges Unusual Or Infrequent Items Or Both, Covid Charges Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Vehicle Programs Deferred financing fees Vehicle Programs [Member] Vehicle Programs [Member] Intangible assets amortization expense, year one Finite-Lived Intangible Asset, Expected Amortization, Year One Operating leases Operating Lease, Payments Beginning balance (in shares) Ending balance (in shares) Common Stock, Shares, Outstanding Interest cost Defined Benefit Plan, Interest Cost Revenue deferred Contract With Customer, Liability, Deferred Revenue Contract With Customer, Liability, Deferred Revenue PEO PEO [Member] Auditor Location Auditor Location Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Employee Benefit Plans Retirement Benefits [Text Block] Change in Plan Assets Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] Foreign net operating loss carryforwards Deferred Tax Assets, Operating Loss Carryforwards, Foreign Common stock (in dollars per share) Common Stock, Par or Stated Value Per Share Digital marketing cost Marketing Expense Finance lease expense: Finance Lease, Liability [Abstract] Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Interest Rate Swap Interest rate swaps Interest Rate Swap [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt financing fees Vehicle Programs Payments Of Financing Costs The cash outflow paid to third parties in connection with debt origination for vehicle programs, which will be amortized over the remaining maturity period of the associated long-term debt. Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Repayments of debt Repayments of Debt Liabilities under vehicle programs: Liabilities Under Vehicle Program [Abstract] Liabilities Under Vehicle Program [Abstract] Deferred income tax liabilities: Deferred Tax Liabilities, Gross [Abstract] Credit Facility [Axis] Credit Facility [Axis] Schedule of Maturities of Long-term Debt Schedule of Maturities of Long-Term Debt [Table Text Block] Current income tax provision Current Income Tax Expense (Benefit) Expected volatility of stock price Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate Vehicle Rental Activities Property and Equipment, net Property, Plant and Equipment Disclosure [Text Block] Title of Individual [Axis] Title of Individual [Axis] Deferred income taxes Deferred Income Taxes Represents the portion of deferred tax liabilities related to rental vehicles. A taxable temporary difference between the tax basis and the carrying amount of rental vehicles in the financial statements prepared in accordance with generally accepted accounting principles. Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] 4.750% euro-denominated Senior Notes Four Point Seven Five Percent Euro-Denominated Senior Notes Due 2026 [Member] Four Point Seven Five Percent Euro-Denominated Senior Notes Due 2026 Related Party Transaction [Domain] Related Party Transaction [Domain] Property, Plant and Equipment, Type [Domain] Long-Lived Tangible Asset [Domain] Disposal Group, Disposed of by Sale, Not Discontinued Operations Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] European credit facility Newly Issued European Credit Facility Newly Issued European Credit Facility Subsequent Event [Line Items] Subsequent Event [Line Items] Estimated future benefit payments, 2025 Defined Benefit Plan, Expected Future Benefit Payment, Year Two Affiliated Entity Affiliated Entity [Member] Vehicles, net Vehicles, net Vehicles Net Total carrying value of rental vehicles classified as program assets not otherwise defined in the taxonomy. Short-term debt, weighted average interest rate, at point in time Short-Term Debt, Weighted Average Interest Rate, at Point in Time Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] State Current State and Local Tax Expense (Benefit) Total current assets Assets, Current Investments in joint ventures Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Income Tax Disclosure [Line Items] Income Tax Disclosure [Line Items] Income Tax Disclosure [Line Items] Net periodic (benefit) cost Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Avis Budget Rental Car Funding Program September 2023 Avis Budget Rental Car Funding Program September 2023 [Member] Avis Budget Rental Car Funding Program September 2023 Equity Securities Equity Securities [Member] Supplemental disclosure Supplemental Cash Flow Information [Abstract] Plan assets Defined Benefit Plan, Pension Plan with Projected Benefit Obligation in Excess of Plan Assets, Plan Assets Supplemental Cash Flow Information Related to Leases [Table] Supplemental Cash Flow Information Related to Leases [Table] Supplemental cash flow information related to leases [Table] Interest rate caps Interest Rate Cap [Member] Restructuring Type [Axis] Restructuring Type [Axis] Intangible Assets Goodwill and Intangible Assets Disclosure [Text Block] Net activity related to restricted stock units (in shares) Stock Repurchased During Period, Shares Number of positions eliminated Restructuring and Related Cost, Number of Positions Eliminated Assets exclusive of assets under vehicle programs Segment Assets Exclusive Of Assets Under Vehicle Program Segment assets exclusive of assets under vehicle program Current Current Income Tax Expense (Benefit), Continuing Operations [Abstract] Assets In Argentina Assets In Argentina [Member] Assets In Argentina Schedule of Accumulated Other Comprehensive Income Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] State and local income taxes, net of federal tax benefits Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent Granted (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Intangible assets amortization expense, year five Finite-Lived Intangible Asset, Expected Amortization, Year Five Between 3 and 4 years Finance Lease, Liability, to be Paid, Year Four Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Accrued liabilities and deferred revenue Deferred Tax Assets Accrued Liabilities And Deferred Income Non Current Deferred Tax Assets, Accrued Liabilities And Deferred Income, Non Current Deferred income tax assets: Deferred Tax Assets, Gross [Abstract] Other (income) expense, net Other (income) expense, net Other (income) expense, net Other Operating Income (Expense), Net Furniture, fixtures & equipment Furniture and Fixtures [Member] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Fair Value, Asset  Derivatives Derivative Asset, Subject to Master Netting Arrangement, before Offset of Collateral Allowance for Doubtful Accounts SEC Schedule, 12-09, Allowance, Credit Loss [Member] Business Combination and Asset Acquisition [Abstract] Net long-lived assets Long-Lived Assets Valuation allowance Deferred Tax Assets, Valuation Allowance Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Revenue recognized Contract with Customer, Liability, Revenue Recognized Avis Budget Rental Car Funding Program March 2023 Avis Budget Rental Car Funding Program March 2023 [Member] Avis Budget Rental Car Funding Program March 2023 Restricted cash Restricted Cash and Cash Equivalents SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] Net Unrealized Gains (Losses) on Cash Flow Hedges Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] Net assets acquired (net of cash acquired) Payments to Acquire Restricted Investments Property, Plant and Equipment, Type [Axis] Long-Lived Tangible Asset [Axis] Preferred stock issued (in shares) Preferred Stock, Shares Issued Entity Emerging Growth Company Entity Emerging Growth Company Americas – Debt borrowings Americas – Debt borrowings Americas Debt Borrowings [Member] Americas Debt Borrowings [Member] Deferred financing fees Deferred financing fees Debt Issuance Costs, Net Other intangibles, net Intangible Assets, Net (Excluding Goodwill) European Rental Fleet Securitization European Rental Fleet Securitization [Member] European Rental Fleet Securitization [Member] Assets Assets [Member] Schedule of Operating Lease, Lease Income Operating Lease, Lease Income [Table Text Block] Within 1 year Lessee, Operating Lease, Liability, to be Paid, Year One Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Antidilutive Securities Antidilutive Securities [Axis] Title Trading Arrangement, Individual Title Depreciation and amortization Deferred Tax Liabilities Depreciation And Amortization Deferred Tax Liabilities, Depreciation and Amortization Total Liabilities under vehicle programs Liabilities Under Vehicle Programs Liabilities Under Vehicle Programs Common Stock Common Stock [Member] SOFR Secured Overnight Financing Rate (SOFR) [Member] Secured Overnight Financing Rate (SOFR) Individual: Individual [Axis] SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis] SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Income Statement Location [Domain] Income Statement Location [Domain] Statute of limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Royalty Royalty [Member] SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain] SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain] Weighted Average Interest Rate Weighted average interest rate Debt, Weighted Average Interest Rate Total stockholders’ equity Beginning balance Ending balance Total stockholders’ equity Equity, Including Portion Attributable to Noncontrolling Interest Avis Budget Rental Car Funding Program August Avis Budget Rental Car Funding Program August [Member] Avis Budget Rental Car Funding Program August Minimum Minimum [Member] Property and equipment, net Property and equipment, net Property, Plant and Equipment, Net Receivables (net of allowance for doubtful accounts of $87 and $86, respectively) Receivables, Net, Current Special cash dividend (in dollars per share) Common Stock, Dividends, Per Share, Cash Paid Other comprehensive income (loss) Other comprehensive income Other Comprehensive Income (Loss), Net of Tax Transaction-related costs, net Transaction-Related Costs, Net Acquisition- and integration- related costs, net Disposal Group Classification [Axis] Disposal Group Classification [Axis] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Benefit obligation at end of prior year Benefit obligation at end of current year Defined Benefit Plan, Benefit Obligation Assets Assets [Abstract] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Estimated future benefit payments, 2026 Defined Benefit Plan, Expected Future Benefit Payment, Year Three 5.500% Senior Notes Five Point Five Percent Senior Notes Due 2023 [Member] Five Point Five Percent Senior Notes Due 2023 Less: Accumulated depreciation Accumulated Depreciation Accumulated depreciation recorded through the balance sheet date for vehicles involved in rental activities. 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Cover [Abstract] Summary Of Significant Accounting Policies [Table] Summary Of Significant Accounting Policies [Table] Summary Of Significant Accounting Policies [Table] Purchases Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase for Purchase Subsequent Events Subsequent Events [Text Block] Amortization of debt financing fees Amortization of Debt Issuance Costs United States UNITED STATES Dividends paid Payments of dividends Payments of Dividends Other non-current liabilities Other Liabilities, Noncurrent Total lease payments Lessee, Operating Lease, Liability, to be Paid Asset acquisition, consideration transferred Asset Acquisition, Consideration Transferred Amortization of ROU assets Finance Lease, Right-of-Use Asset, Amortization Segment Information Segment Reporting Disclosure [Text Block] Government bonds Debt Security, Government, Non-US [Member] Net increase (decrease) in cash and cash equivalents, program and restricted cash Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Secured Debt Secured Debt [Member] Equity Component [Domain] Equity Component [Domain] Short-term vehicle finance lease liabilities Finance Lease, Liability, Current Avis Budget Rental Car Funding Program April 2026 Avis Budget Rental Car Funding Program April 2026 [Member] Avis Budget Rental Car Funding Program April 2026 Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] International – Finance leases International – Finance leases International Capital Leases [Member] International Capital Leases [Domain] Other Deferred Tax Liabilities, Other Entity Current Reporting Status Entity Current Reporting Status Net cash provided by financing activities of vehicle programs Net Cash Provided By Used In Financing Activities Of Vehicle Programs Net Cash Provided By Used In Financing Activities Of Vehicle Programs Legal matters, net Unprecedented Personal-Injury And Other Legal Matters, Net Unprecedented Personal-Injury And Other Legal Matters, Net Non-cash activities - increase in ROU assets in exchange for lease liabilities: Right-Of-Use Asset Obtained In Exchange For Lease Liability [Abstract] Right-Of-Use Asset Obtained In Exchange For Lease Liability Accumulated Other Comprehensive Income (Loss) AOCI Including Portion Attributable to Noncontrolling Interest [Member] Facility Related Facility Closing [Member] Cash equivalents and short-term investments Cash and Cash Equivalents [Member] Avis Budget Rental Car Funding Program March 2025 Avis Budget Rental Car Funding Program March 2025 [Member] Avis Budget Rental Car Funding Program March 2025 Consolidated Entities [Domain] Consolidated Entities [Domain] Deferred income tax liabilities Deferred Tax Liabilities, Gross Debt Debt Carrying value as of the balance sheet date of debt related to rental vehicles due to third party lenders. Program cash Program cash Program Cash The carrying amounts of cash and cash equivalent items related to vehicle programs which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against short-term borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. For a classified balance sheet represents the current portion only (the noncurrent portion has a separate concept); there is a separate and distinct element for unclassified presentations. 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Amount Net activity related to restricted stock units APIC, Share-Based Payment Arrangement, Restricted Stock Unit, Increase for Cost Recognition Schedule of Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Floating Rate Term Loan Floating Rate Term Loan Due March Two Thousand Twenty Nine [Member] Floating Rate Term Loan Due March Two Thousand Twenty Nine Goodwill [Roll Forward] Goodwill [Roll Forward] Amortization of right-of-use assets Amortization of Right-Of-Use Assets Amortization of Right-Of-Use Assets 8.000% Senior Notes Eight Point Zero Percent Senior Notes due 2031 [Member] Eight Point Zero Percent Senior Notes due 2031 Schedule of Defined Benefit Pension Plans' Assets Fair Value Schedule of Allocation of Plan Assets [Table Text Block] Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Level 3 Fair Value, Inputs, Level 3 [Member] Treasury stock (in shares) Treasury stock, beginning balance (in shares) Treasury stock, ending balance (in shares) Treasury Stock, Common, Shares Estimated future benefit payments, 2024 Defined Benefit Plan, Expected Future Benefit Payment, Year One Leases Lessor, Operating Leases [Text Block] Estimated litigation liability Estimated Litigation Liability Buildings and leasehold improvements Building and Building Improvements [Member] Less: Adjustments To EBITDA [Abstract] Adjustments To EBITDA Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Debt issuance discount, percent Debt Instrument, Issuance Discount, Percent Debt Instrument, Issuance Discount, Percent Schedule of Other Current Assets Schedule of Other Current Assets [Table Text Block] Net income attributable to Avis Budget Group, Inc. Net income attributable to Avis Budget Group, Inc. Net Income (Loss) Total current liabilities Liabilities, Current Derivative Contract [Domain] Derivative Contract Type [Domain] Derivative Contract [Domain] Schedule of Notional Amounts of Outstanding Derivative Positions Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block] Between 1 and 2 years Finance Lease, Liability, to be Paid, Year Two Currency Translation and Transactions Foreign Currency Transactions and Translations Policy [Policy Text Block] Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] 5.375% Senior Notes Five Point Three Seven Five Percent Senior Notes Due 2029 [Member] Five Point Three Seven Five Percent Senior Notes Due 2029 Operating lease expense Lease charges Vehicle Lease Charges Amount of lease charges recorded on rental vehicles. Company Selected Measure Name Company Selected Measure Name Leases Lessee, Operating Leases [Text Block] Number of employees involved in an accident Loss Contingency, Number Of Employees Involved In An Accident Loss Contingency, Number Of Employees Involved In An Accident Total Debt and Lease Obligation Liabilities and stockholders’ equity Liabilities and Equity [Abstract] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Reclassification of currency translation adjustments to earnings Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Net of Tax Currency translation adjustment Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss) 7.250% euro-denominated Senior Notes Seven Point Two Five Euro-Denominated Senior Notes [Member] Seven Point Two Five Euro-Denominated Senior Notes Expense Type [Domain] Expense Type [Domain] 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Measure Name Total Capacity Line of Credit Facility, Current Borrowing Capacity Name Forgone Recovery, Individual Name Goodwill Goodwill beginning balance Goodwill ending balance Goodwill Additions for tax positions for prior years Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions Schedule of Geographic Segment Information Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block] Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] Transaction-related Costs, net Transaction Related Costs Policy [Policy Text Block] Transaction Related Costs [Policy Text Block] Measurement Basis [Axis] Measurement Basis [Axis] Underlying Securities Award Underlying Securities Amount Fair Value Measurement [Domain] Fair Value Measurement [Domain] Currency translation adjustments, tax OCI, Foreign Currency Transaction and Translation Gain (Loss), Arising During Period, Tax Subsidiary Issuers Subsidiaries [Member] Selling, General and Administrative Expenses Selling, General and Administrative Expenses [Member] Funded Status Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract] Long-term operating lease liabilities Operating Lease, Liability, Noncurrent Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Earnings of foreign subsidiaries Deferred Tax Liabilities, Undistributed Foreign Earnings Reclassification from accumulated other comprehensive income (loss) into interest expense Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax Rental Vehicles net, total Rental Vehicles Net Rental Vehicles Net Income Statement Location [Axis] Income Statement Location [Axis] 4.500% euro-denominated Senior Notes Four Point Five Percent Euro-Denominated Senior Notes Due 2025 [Member] Four Point Five Percent Euro-Denominated Senior Notes Due 2025 Non-current liabilities Liability, Defined Benefit Plan, Noncurrent stock-based compensation 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Contingencies [Table] Thereafter Lessee, Operating Lease, Liability, to be Paid, after Year Five 2026 2026 Long-Term Debt, Maturity, Year Three Maturities of lease liabilities [Line Items] Maturities of lease liabilities [Line Items] Maturities of lease liabilities [Line Items] (Gain) loss on sale of vehicles, net Gain Loss On Sale Of Vehicles Gain on sales of vehicles, net including the cost of the vehicle disposition, for vehicles used in rental activities. Vehicle interest, net Vehicle Interest Net The cost of borrowed funds on vehicle debt accounted for as interest that was charged against earnings during the period. Avis Budget Rental Car Funding Program Avis Budget Rental Car Funding Program [Member] Avis Budget Rental Car Funding Program [Member] Reductions for tax positions for prior years Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Auditor Firm ID Auditor Firm ID Amortization expense Amortization of Intangible Assets Entity Shell Company Entity Shell Company Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Investment in debt securities of Avis Budget Rental Car Funding (AESOP)—related party Payments for Advance to Affiliate Restatement Determination Date Restatement Determination Date Outstanding and expected to vest, weighted average grant date fair value (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Expected to Vest, Weighted Average Grant Date Fair Value The weighted average grant date fair value of unvested equity awards for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. Other Other Liabilities Under Vehicle Programs Aggregate carrying amount, as of the balance sheet date, of noncurrent obligations (mainly payables for program vehicles purchased) not separately disclosed in the balance sheet due to materiality considerations. Noncurrent liabilities are expected to be paid after one year (or the normal operating cycle, if longer). Income taxes Increase (Decrease) in Income Taxes Payable Additions for tax positions related to current year Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Schedule of Restructuring and Related Costs [Table] Schedule of Restructuring and Related Costs [Table] Cash and cash equivalents, program and restricted cash, beginning of period Cash and cash equivalents, program and restricted cash, end of period Total cash and cash equivalents, program and restricted cash Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents Loans Payable Loans Payable [Member] Variable lease expense Variable Lease, Cost Operating lease expense Operating Lease, Cost Impairment of Long-Lived Assets Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] Common stock issued (in shares) Common Stock, Shares, Issued Share based compensation percentage in annual base salary, min Share Based Compensation Percentage In Annual Base Salary, Min Share based compensation percentage in annual base salary, min. Vested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Avis Budget Rental Car Funding Program October 2026 Avis Budget Rental Car Funding Program October 2026 [Member] Avis Budget Rental Car Funding Program October 2026 Severance costs Severance Costs Treasury stock, at cost 102 and 98 shares, respectively Treasury Stock, Common, Value Total Long-Term Debt 2027 2027 Long-Term Debt, Maturity, Year Four Currency Translation Adjustments Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Income Tax Disclosure [Table] Income Tax Disclosure [Table] Income Tax Disclosure [Table] Balance at Beginning of Period Balance at End of Period SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount Period for recognition Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Total comprehensive income attributable to Avis Budget Group, Inc. Comprehensive Income (Loss), Net of Tax, Attributable to Parent Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration] Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration] Avis Budget Rental Car Funding Program August 2027 Avis Budget Rental Car Funding Program August 2027 [Member] Avis Budget Rental Car Funding Program August 2027 Net funded status Defined Benefit Plan, Funded (Unfunded) Status of Plan Entity Address, Address Line One Entity Address, Address Line One Bank And Bank-Sponsored Facilities Bank And Bank-Sponsored Facilities [Member] Bank And Bank-Sponsored Facilities Cost Optimization Cost Optimization [Member] Cost Optimization Vehicle programs Net Cash Used In Investing Activities Of Vehicle Programs The net cash inflow (outflow) from investing activities of vehicle programs. Subsequent Event [Table] Subsequent Event [Table] Plan assets Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Plan Assets Ownership interest Subsidiary, Ownership Percentage, Parent Within 1 year Finance Lease, Liability, to be Paid, Year One Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Subsequent Event Subsequent Event [Member] Federal net operating loss carryforwards net of valuation allowances Operating Loss Carryforwards Avis Budget Rental Car Funding Program December 2028 Avis Budget Rental Car Funding Program December 2028 [Member] Avis Budget Rental Car Funding Program December 2028 Budget Budget [Member] Budget [Member] Finance Leases Finance Lease, Liability, to be Paid, Rolling Maturity [Abstract] Retained risks of liability to third parties Retained Risks Of Liabilities Retained Risks Of Liabilities Other Other Liabilities, Current Schedule of Intangible Assets Amortization Expense Schedule of Finite-Lived Intangible Assets [Table Text Block] Income Statement [Abstract] Income Statement [Abstract] Anti-dilutive non-vested stock (in dollar per share) Anti-dilutive Non-Vested Stock Weighted Average Grant Date Fair Value Anti-dilutive Non-Vested Stock Weighted Average Grant Date Fair Value Vehicle programs: Vehicle Programs Financing Activities [Abstract] Vehicle Programs Financing Activities [Abstract]. Defined Benefit Plan, Plan Assets, Category [Axis] Defined Benefit Plan, Plan Assets, Category [Axis] Goodwill Goodwill, Gross Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Schedule of Changes to Restructuring-Related Liabilities Schedule of Restructuring Reserve by Type of Cost [Table Text Block] Interest rate swaps and interest rate caps Derivative Liability Other current assets Other current assets Other Assets, Current Non-current assets Assets for Plan Benefits, Defined Benefit Plan Income Tax Examination [Line Items] Income Tax Examination [Line Items] Financial Instruments Financial Instruments Disclosure [Text Block] Public liability and property damage insurance liabilities – current Public Liability And Property Damage Insurance Liabilities, Current Public Liability And Property Damage Insurance Liabilities, Current 99.3% senior notes Ninety Nine Point Three Senior Notes Due 2031 [Member] Ninety Nine Point Three Senior Notes Due 2031 Vehicle-Backed Debt Vehicle-Backed Debt [Member] Vehicle-Backed Debt Land Land [Member] Vehicle interest income Vehicle Interest Income Vehicle Interest Income Advertising Expenses Advertising Cost [Policy Text Block] Total Shareholder Return Amount Total Shareholder Return Amount Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract] Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents [Abstract] Repurchases of common stock Payments for Repurchase of Common Stock Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Foreign Deferred Foreign Income Tax Expense (Benefit) Administrative Services Administrative Services [Member] Administrative Services Stockholders’ Equity Attributable to Avis Budget Group, Inc. Parent [Member] Segments [Domain] Segments [Domain] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Depreciation and amortization expense Depreciation, Nonproduction Gain on deconsolidation Deconsolidation, Gain (Loss), Amount Retained earnings Retained Earnings (Accumulated Deficit) Face amount Debt Instrument, Face Amount Deferred income tax liabilities: Deferred Tax Liabilities, Net [Abstract] Amount of consideration received Noncash or Part Noncash Divestiture, Amount of Consideration Received Current assets: Assets, Current [Abstract] Leases [Abstract] Leases [Abstract] Entity Address, State or Province Entity Address, State or Province Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Franchise Rights Franchise Rights [Member] Total lease payments Finance Lease, Liability, to be Paid Operating activities Net Cash Provided by (Used in) Operating Activities [Abstract] Schedule of Unrecognized Tax Benefits Summary Of Income Tax Contingencies By Balance Sheet Location Table [Table Text Block] Summary of income tax contingencies by balance sheet location [table text block] Non Avis Budget Car Rental Tax Contingencies Non Avis Budget Car Rental Tax Contingencies [Member] Non-Avis Budget Car Rental Tax Contingencies [Member] Net cash used in investing activities exclusive of vehicle programs Net Cash Used In Investing Activities Exclusive Of Vehicle Programs The net cash inflow (outflow) from investing activity exclusive of vehicle programs . Disposal Group Name [Domain] Disposal Group Name [Domain] Corporate Interest Expense Corporate Interest Expense [Member] Corporate Interest Expense [Member] Receivables due from former subsidiaries Other Receivables Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Other Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Treasury stock value acquired Treasury Stock, Value, Acquired, Cost Method Excluding Excise Taxes Treasury Stock, Value, Acquired, Cost Method Excluding Excise Taxes Revenues from External Customers and Long-Lived Assets [Line Items] Revenues from External Customers and Long-Lived Assets [Line Items] T19 T19 Restructuring Plan [Member] T19 Restructuring [Member] Effective income tax rate, continuing operations, total Effective Income Tax Rate Reconciliation, Percent Operating lease liabilities Total Operating Lease, Liability SRS Mobility Ventures, LLC SRS Mobility Ventures, LLC [Member] SRS Mobility Ventures, LLC Operating lease, minimum annual guaranteed rent in excess of concession fees Operating Lease, Minimum Annual Guaranteed Rent In Excess Of Concession Fees Operating Lease, Minimum Annual Guaranteed Rent In Excess Of Concession Fees Maturities of lease liabilities [Table] Maturities of lease liabilities [Table] Maturities of lease liabilities [Table] Schedule of Stock Based Compensation Activity Share-Based Payment Arrangement, Activity [Table Text Block] Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Accumulated Other Comprehensive Income (Loss) AOCI Attributable to Parent [Member] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Expense (Benefit) SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense Contributions Defined Contribution Plan, Cost All Executive Categories All Executive Categories [Member] Contract with customer, liability, noncurrent Contract with Customer, Liability, Noncurrent Number of vehicles involved in an accident Loss Contingency, Number Of Vehicles Involved in An Accident Loss Contingency, Number Of Vehicles Involved in An Accident Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Minimum Pension Liability Adjustment Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Tax loss carryforwards Deferred Tax Assets Operating Loss Carryforward With Valuation Against It Deferred Tax Assets Operating Loss Carryforward With Valuation Against It Debt Under Vehicle Programs And Borrowing Arrangements [Table] Debt Disclosure [Abstract] Earnings per share Earnings Per Share [Abstract] Common stock, $.01 par value—authorized 250 shares; issued 137 shares, respectively Common Stock, Value, Issued Expense Type [Axis] Expense Type [Axis] Expense Type Cash payments for lease liabilities within operating activities: Cash Payments for Lease Liabilities in Operating Activities [Abstract] Cash Payments for Lease Liabilities in Operating Activities Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Trade Names Trade Names [Member] Retirement Plan Sponsor Location [Domain] Retirement Plan Sponsor Location [Domain] Gain Contingencies, Nature [Axis] Gain Contingencies, Nature [Axis] Reclassification of pension and post-retirement benefits to earnings, tax Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, Tax Senior Notes Senior Notes [Member] Supplemental Cash Flow Information Related to Leases [Line Items] Supplemental Cash Flow Information Related to Leases [Line Items] Supplemental cash flow information related to leases [Line Items] Deferred Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] Schedule of Defined Benefit Plans Disclosures [Table] Schedule of Defined Benefit Plans Disclosures [Table] Vehicle finance leases Finance Lease, Principal Payments All Individuals All Individuals [Member] Entity Filer Category Entity Filer Category Avis Budget Rental Car Funding Program February 2029 Avis Budget Rental Car Funding Program February 2029 [Member] Avis Budget Rental Car Funding Program February 2029 Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Customer Loyalty Customer Loyalty [Member] Customer Loyalty [Member] Statement [Table] Statement [Table] Long-term debt Secured Long-Term Debt, Noncurrent Current Fiscal Year End Date Current Fiscal Year End Date Derivative Instruments and Hedging Activities Disclosures [Line Items] Derivative Instruments and Hedging Activities Disclosures [Line Items] Stock repurchase program, authorized amount (up to) Stock Repurchase Program, Authorized Amount Accrued sales and use taxes Sales and Excise Tax Payable, Current Schedule of Reconciliation of U.S Federal Income Tax Statutory Rate and Effective Income Tax Rate Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Beginning Balance Ending Balance Unrecognized tax benefits Unrecognized Tax Benefits Income Tax Authority [Axis] Income Tax Authority [Axis] PEO Name PEO Name Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Preferred stock authorized (in shares) Preferred Stock, Shares Authorized Estimated future benefit payments, 2029 to 2033 Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years Buildings Building [Member] Schedule of Goodwill Schedule of Goodwill [Table Text Block] Preferred stock outstanding (in shares) Preferred Stock, Shares Outstanding Long-term purchase commitment, period Long-Term Purchase Commitment, Period Tax credits Deferred Tax Assets, Tax Credit Carryforwards Income Taxes [Line Items] Income Taxes [Line Items] Income Taxes [Line Items] Currency translation adjustments and other Goodwill, Translation and Purchase Accounting Adjustments Deductions SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction Noncurrent Income Taxes Payable Noncurrent Income Taxes Payable [Member] Noncurrent Income Taxes Payable T21 T21 Restructuring Plan [Member] T21 Restructuring Plan SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] Other, net Increase (Decrease) in Other Operating Assets and Liabilities, Net Debt instrument interest percentage Debt Instrument, Interest Rate, Stated Percentage Accounts payable and other current liabilities Accounts payable and other current liabilities Accounts Payable and Accrued Liabilities, Current Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Stockholders’ equity attributable to Avis Budget Group, Inc. Equity, Attributable to Parent Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Aggregate purchase obligations Recorded Unconditional Purchase Obligation Depreciation and amortization Deferred Tax Liabilities Depreciation And Amortization Non Current Deferred tax liabilities depreciation and amortization non current Restricted Stock Restricted Stock [Member] Accumulated amortization Finance Lease, Right-of-Use Asset, Accumulated Amortization Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Subsequent Events [Abstract] Subsequent Events [Abstract] Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Derivatives not designated as hedging instruments Not Designated as Hedging Instrument [Member] Total liabilities exclusive of liabilities under vehicle programs Total Liabilities Exclusive Of Liabilities Under Vehicle Programs Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized, excluding liabilities under vehicle programs. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future. Restructuring and Other Related Charges Restructuring and Related Activities Disclosure [Text Block] Current liabilities Liability, Defined Benefit Plan, Current Hedging Designation [Domain] Hedging Designation [Domain] Level 2 Fair Value, Inputs, Level 2 [Member] Current Income Taxes Payable Current Income Taxes Payable [Member] Current Income Taxes Payable Operating Expense Operating Expense [Member] Vehicles Vehicles Policy [Policy Text Block] Vehicles [Policy Text Block] Euro-denominated notes Euro-Denominated Notes [Member] Euro-Denominated Notes Disposal Group Classification [Domain] Disposal Group Classification [Domain] Subsidiary Equity Subsidiary Equity [Member] Subsidiary Equity Foreign currency translation Unrecognized Tax Benefits, Increase Resulting from Foreign Currency Translation Schedule of Effect of Derivatives Recognized Derivative Instruments, Gain (Loss) [Table Text Block] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Unrecognized tax benefits Unrecognized Tax Benefits, Period Increase (Decrease) Document Fiscal Period Focus Document Fiscal Period Focus Weighted average useful life (in years) Finite-Lived Intangible Asset, Useful Life Available Capacity Line of Credit Facility, Remaining Borrowing Capacity Between 3 and 4 years Lessee, Operating Lease, Liability, to be Paid, Year Four Stock-based compensation Share-Based Payment Arrangement, Noncash Expense Interest rate caps sold Sold [Member] Sold [Member] Weighted Average Weighted Average [Member] Repurchase amount Debt Instrument, Repurchase Amount Brand [Axis] Brand [Axis] Brand [Axis] Outstanding and expected to vest weighted average remaining contractual term (in years) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Expected to Vest, Weighted Average Remaining Contractual Term Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Expected to Vest, Weighted Average Remaining Contractual Term Avis Budget Rental Car Funding Program June 2028 Avis Budget Rental Car Funding Program June 2028 [Member] Avis Budget Rental Car Funding Program June 2028 Finance lease ROU assets, gross Finance Lease, Right-of-Use Asset, before Accumulated Amortization City Area Code City Area Code Investment in plan assets (in percent) Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Percentage Outstanding and expected to vest (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Expected to Vest, Number of Shares Outstanding Number of unvested equity awards for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. Product and Service [Axis] Product and Service [Axis] Earnings Per Share Earnings Per Share [Text Block] Expected number of positions eliminated Restructuring and Related Cost, Expected Number of Positions Eliminated Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration] Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration] Ownership acquired percentage Equity Method Investment, Ownership Percentage Document Fiscal Year Focus Document Fiscal Year Focus Geographical [Domain] Geographical [Domain] Net unrealized holding gains (losses), tax Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax Capitalized software Software and Software Development Costs [Member] Pension and post-retirement benefits, net of tax of $6, $(4), and $(13), respectively Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, after Tax Liability Liability [Member] Exercise Price Award Exercise Price Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Dividends paid Dividends, Common Stock, Cash Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Net income Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Long-term operating lease liabilities Deferred Tax Assets Operating, Liability, Noncurrent Deferred Tax Assets Operating, Liability, Noncurrent Income tax payments, net Income Taxes Paid, Net Currency translation adjustments, net of tax of $7, $(11) and $(20), respectively Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax Cash flow hedges: Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax [Abstract] Schedule of Reconciliation of Adjusted EBITDA to Income (Loss) Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block] Total liabilities and stockholders’ equity Liabilities and Equity Other non-current assets Other Assets, Noncurrent Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Ownership [Domain] Ownership [Domain] Risk-free interest rate Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Operating lease right-of-use assets Operating lease ROU assets Operating Lease, Right-of-Use Asset Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Vehicles, net investment in lease Vehicle, Net Investment In Lease Receivables Vehicle, Net Investment In Lease Receivables Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Foreign Current Foreign Tax Expense (Benefit) Indefinite-lived Intangible Assets [Line Items] Indefinite-Lived Intangible Assets [Line Items] Benefit obligation Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Arrangement Duration Trading Arrangement Duration Tax Liability Tax Liability [Member] Tax Liability Entity Address, City or Town Entity Address, City or Town Award Timing MNPI Considered Award Timing MNPI Considered [Flag] 6% euro-denominated Senior Notes Six Percent Euro-Denominated Senior Notes [Member] Six Percent Euro-Denominated Senior Notes Related Party Related Party [Member] Schedule of Operating Segments Schedule of Segment Reporting Information, by Segment [Table Text Block] Investment in vehicles Investment In Vehicles The cash outflow for acquisition of vehicles used in revenue generation activities. Restructuring and other related charges Restructuring expense: Restructuring Charges Net cash used in financing activities exclusive of vehicle programs Net Cash Provided By Used In Financing Activities Exclusive Of Vehicle Programs Net Cash Used In Financing Activities Exclusive Of Vehicle Programs Projected benefit obligation Defined Benefit Plan, Pension Plan with Projected Benefit Obligation in Excess of Plan Assets, Projected Benefit Obligation Sale of equity investments Income (Loss) from Equity Method Investments, Net of Dividends or Distributions Fair Value Measurements Fair Value of Financial Instruments, Policy [Policy Text Block] Derivative Instruments and Hedging Activities Disclosures [Table] Derivative Instruments and Hedging Activities Disclosures [Table] Remaining authorized repurchase amount Stock Repurchase Program, Remaining Authorized Repurchase Amount Termination Date Trading Arrangement Termination Date Common stock authorized (in shares) Common Stock, Shares Authorized Amortization expense relating to capitalized computer software Capitalized Computer Software, Amortization Accounts Payable and Other Current Liabilities Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block] Contributions from non-controlling interests Proceeds from Noncontrolling Interests Indefinite-lived Intangible Assets by Major Class [Axis] Indefinite-Lived Intangible Assets [Axis] Auditor Information [Abstract] Auditor Information [Abstract] Loss contingency, liability assumed, percent Loss Contingency, Liability Assumed, Percent Loss Contingency, Liability Assumed, Percent Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Avis Budget Rental Car Funding Program February 2026 Avis Budget Rental Car Funding Program February 2026 [Member] Avis Budget Rental Car Funding Program February 2026 Related Party Transactions [Abstract] Estimated loss Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net Avis Avis [Member] Avis [Member] Award Timing Disclosures [Line Items] Avis Budget Rental Car Funding Vehicle-backed debt due to Avis Budget Rental Car Funding Avis Budget Rental Car Funding [Member] Avis Budget Rental Car Funding Title of Individual [Domain] Title of Individual [Domain] Fair value vested in period Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Additional paid-in capital Additional Paid in Capital Vehicle depreciation and lease charges, net Vehicle depreciation and lease charges, net Cost, Depreciation Plan amendments Defined Benefit Plan, Benefit Obligation, Increase (Decrease) for Plan Amendment Restructuring Plan [Axis] Restructuring Plan [Axis] Other Other Other Debt Under Vehicle Program [Member] Other debt under the vehicle program. Deferred financing fees Vehicle Program Outstanding Debt, Deferred Finance Costs Net Vehicle Program Outstanding Debt, Deferred Finance Costs Net Americas – Debt due to Avis Budget Rental Car Funding Americas – Debt due to Avis Budget Rental Car Funding Debt Due To Rental Car Funding [Member] Debt Due to Rental Car Funding [Member] Cloud computing costs Cloud Computing Costs [Member] Cloud Computing Costs International – Debt borrowings International – Debt borrowings International Debt Borrowings [Member] International Debt Borrowings [Member] 5.750% Senior Notes Five Point Seven Five Percent Senior Notes Due 2027 [Member] Five Point Seven Five Percent Senior Notes Due 2027 Fair Value, Liability  Derivatives Derivative Liability, Subject to Master Netting Arrangement, before Offset of Collateral Taxes Income Tax, Policy [Policy Text Block] Short-term debt and current portion of long-term debt Less: Short-term debt and current portion of long-term debt Debt, Current Intangible assets amortization expense, year three Finite-Lived Intangible Asset, Expected Amortization, Year Three Insider Trading Arrangements [Line Items] AOCI Attributable to Parent, Net of Tax [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] Proceeds received on disposition of vehicles Proceeds Received On Disposition Of Vehicles The cash inflow from the sale of vehicles used in revenue generation activities. Related Party [Axis] Related Party, Type [Axis] Other Adjustments SEC Schedule, 12-09, Valuation Allowances and Reserves, Increase (Decrease) Adjustment Supplemental Balance Sheet Information Related to Leases [Table] Supplemental Balance Sheet Information Related to Leases [Table] Supplemental balance sheet information related to leases [Table] Entity Registrant Name Entity Registrant Name Payments on long-term borrowings Principal Payments On Long Term Borrowings The cash outflow for a borrowing having initial term of repayment of more than one year or the normal operating cycle, if longer; and/or the cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Award Timing Method Award Timing Method [Text Block] Total Outstanding borrowings Vehicle Program Outstanding Debt Vehicle Program Outstanding Debt Taxes on foreign operations at rates different than U.S. federal statutory rates Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent Intangible assets amortization expense, year two Finite-Lived Intangible Asset, Expected Amortization, Year Two Adjustment to Compensation, Amount Adjustment to Compensation Amount Personnel Related Employee Severance [Member] Non-controlling interests Equity, Attributable to Noncontrolling Interest Net change in short-term borrowings Proceeds from (Repayments of) Short-Term Debt Auditor Name Auditor Name Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Less: Accumulated depreciation and amortization Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Disposal Group Name [Axis] Disposal Group Name [Axis] Corporate and Other Corporate and Other [Member] Entity Central Index Key Entity Central Index Key Property leases Property [Member] Property Depreciation and amortization Deferred Tax Assets Depreciation And Amortization Non Current Deferred Tax Assets, Depreciation And Amortization, Non Current Stock-based compensation expense Share-Based Payment Arrangement, Expense Vehicle Repurchase And Guaranteed Depreciation Programs [Domain] Vehicle Repurchase And Guaranteed Depreciation Programs [Domain] Vehicle Repurchase And Guaranteed Depreciation Programs [Domain] Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Gross Carrying Amount Finite-Lived Intangible Assets, Gross Income Tax Authority [Domain] Income Tax Authority [Domain] Accrued payroll and related Employee-related Liabilities, Current Debt financing fees Payments of Financing Costs Derivatives used in net investment hedge, net of tax Derivatives used in Net Investment Hedge, Net of Tax Other Other Restructuring [Member] Name Trading Arrangement, Individual Name Schedule of Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] Pension and post-retirement benefits, tax Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, Tax Revenue Revenue from Contract with Customer, Excluding Assessed Tax Entity [Domain] Entity [Domain] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Amendment Flag Amendment Flag Legal Entity [Axis] Legal Entity [Axis] Comprehensive income: Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract] License agreements Licensing Agreements [Member] Weighted average discount rate Operating Lease, Weighted Average Discount Rate, Percent SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] Interest payments Interest Paid, Excluding Capitalized Interest, Operating Activities Cash payments for lease liabilities within financing activities: Cash Payments for Lease Liabilities in Financing Activities [Abstract] Cash Payments for Lease Liabilities in Financing Activities Business Combinations Business Combinations Policy [Policy Text Block] Long-term debt Long-Term Debt, Excluding Current Maturities Weighted average remaining lease term Finance Lease, Weighted Average Remaining Lease Term Actual return on plan assets Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss) Deferred income tax liabilities under vehicle programs, net Deferred Tax Liabilities, Net Diluted weighted average shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Term Contract With Customer, Liability, Term Contract With Customer, Liability, Term Retirement Plan Sponsor Location [Axis] Retirement Plan Sponsor Location [Axis] Property and equipment additions Property And Equipment Additions Current year acquisitions of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include land, buildings, and production equipment; or the cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. Depreciation expense Vehicle Depreciation Expense Amount of depreciation expense recorded on rental vehicles. Expenses Operating Expenses [Abstract] Company Selected Measure Amount Company Selected Measure Amount Amortization of unrecognized amounts Defined Benefit Plan, Amortization Of Unrecognized Amounts Defined benefit plan, amortization of unrecognized amounts Estimated future benefit payments, 2027 Defined Benefit Plan, Expected Future Benefit Payment, Year Four Property leases Lease, Cost [Abstract] Total assets Assets Assets Name Awards Close in Time to MNPI Disclosures, Individual Name Thereafter Finance Lease, Liability, to be Paid, after Year Five 2028 2028 Long-Term Debt, Maturity, Year Five Labor and related expense Labor and Related Expense Restructuring and Related Activities [Abstract] Restructuring and Related Activities [Abstract] Vehicle finance leases Finance Lease, Interest Payment on Liability Vested (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Non-NEOs Non-NEOs [Member] Projects in process Construction in Progress [Member] Avis Budget Rental Car Funding Program February 2028 Avis Budget Rental Car Funding Program February 2028 [Member] Avis Budget Rental Car Funding Program February 2028 Defined Benefit Plan, Plan Assets, Category [Domain] Defined Benefit Plan, Plan Assets, Category [Domain] Minimum pension liability adjustment: Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax [Abstract] Financing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Non-PEO NEO Non-PEO NEO [Member] Adjustment to Compensation: Adjustment to Compensation [Axis] Schedule of Funded Status of Pension Plans Schedule of Changes in Accumulated Postemployment Benefit Obligations [Table Text Block] Debt Instrument [Line Items] Debt Instrument [Line Items] Net tax loss carryforwards Deferred Tax Assets, Operating Loss Carryforwards Basic weighted average shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Other Other Brands [Member] Other Brands [Member] Avis Budget Rental Car Funding Program February 2027 Avis Budget Rental Car Funding Program February 2027 [Member] Avis Budget Rental Car Funding Program February 2027 Proceeds from debt securities of Avis Budget Rental Car Funding (AESOP)—related party Proceeds from Collection of Advance to Affiliate Schedule of Indefinite-Lived Intangible Assets [Table] Schedule of Indefinite-Lived Intangible Assets [Table] Revenues Revenues [Abstract] Avis Mobility Ventures LLC (AMV) Avis Mobility Ventures LLC (AMV) [Member] Avis Mobility Ventures LLC (AMV) Total lease revenues Operating Lease, Lease Income Related Party Transaction [Axis] Related Party Transaction [Axis] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Statement [Line Items] Statement [Line Items] Accrued interest payable on potential tax liabilities Unrecognized Tax Benefits, Interest on Income Taxes Accrued Operating lease liabilities Increase (Decrease) in Operating Lease Liabilities Increase (Decrease) in Operating Lease Liabilities Schedule of Debt Schedule of Debt [Table Text Block] Non-controlling Interests Noncontrolling Interest [Member]