Debt under Vehicle Programs and Borrowing Arrangements - Schedule Of Available Funding Under Vehicle Programs (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Total Capacity	$ 19,888
Outstanding borrowings	18,937	$ 13,809
Available Capacity	881
Outstanding Borrowings	19,007
Americas – Debt due to Avis Budget Rental Car Funding
Debt Instrument [Line Items]
Outstanding borrowings	15,502	11,322
Americas – Debt due to Avis Budget Rental Car Funding \| Affiliated Entity
Debt Instrument [Line Items]
Total Capacity	15,537
Available Capacity	35
Americas – Debt due to Avis Budget Rental Car Funding \| Affiliated Entity \| Secured Debt
Debt Instrument [Line Items]
Outstanding Borrowings	17,400
Americas – Debt borrowings
Debt Instrument [Line Items]
Total Capacity	1,234
Outstanding borrowings	1,075	598
Available Capacity	159
Americas – Debt borrowings \| Secured Debt
Debt Instrument [Line Items]
Outstanding Borrowings	1,500
International – Debt borrowings
Debt Instrument [Line Items]
Total Capacity	2,816
Outstanding borrowings	2,203	1,700
Available Capacity	613
International – Debt borrowings \| Secured Debt
Debt Instrument [Line Items]
Outstanding Borrowings	2,800
International – Finance leases
Debt Instrument [Line Items]
Total Capacity	246
Outstanding borrowings	172	176
Available Capacity	74
International – Finance leases \| Secured Debt
Debt Instrument [Line Items]
Outstanding Borrowings	200
Other
Debt Instrument [Line Items]
Total Capacity	55
Outstanding borrowings	55	$ 65
Available Capacity	$ 0

Vehicle Program Outstanding Debt

No definition available.

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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.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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