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Debt Under Vehicle Programs and Borrowing Arrangements (Narrative) (Details) - USD ($) $ in Millions | Sep. 30, 2021 | Jun. 30, 2021 | May 31, 2021
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Debt Due To Rental Car Funding August 2026 |  |  |
Debt Instrument [Line Items] |  |  |
Asset-backed securities, at carrying value |  |  | $ 800
Avis Budget Rental Car Funding Program March 2024 |  |  |
Debt Instrument [Line Items] |  |  |
Asset-backed securities, at carrying value |  | $ 96 |
Avis Budget Rental Car Funding Program September 2024 |  |  |
Debt Instrument [Line Items] |  |  |
Asset-backed securities, at carrying value | $ 105 |  |
Avis Budget Rental Car Funding Program March 2025 |  |  |
Debt Instrument [Line Items] |  |  |
Asset-backed securities, at carrying value | $ 103 |  |
Avis Budget Rental Car Funding Program |  |  |
Debt Instrument [Line Items] |  |  |
Weighted average interest rate | 3.14% |  | 1.73%

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- Definition Investments in notes or bonds that are collateralized by a specific group of underlying assets owned by the issuer of the notes or bonds which are short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months. + References No definition available. + 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 Weighted average interest rate of debt outstanding. + References No definition available. + Details
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