Debt Under Vehicle Programs and Borrowing Arrangements - Schedule of Debt Issued by AESOP (Details) $ in Millions	Mar. 31, 2026 USD ($)
Debt Instrument [Line Items]
Weighted Average Interest Rate	5.36%
Amount Issued	$ 922
Avis Budget Rental Car Funding Program August 2027
Debt Instrument [Line Items]
Weighted Average Interest Rate	6.36%
Amount Issued	$ 90
Avis Budget Rental Car Funding Program June 2029
Debt Instrument [Line Items]
Weighted Average Interest Rate	7.20%
Amount Issued	$ 164
Avis Budget Rental Car Funding Program August 2029
Debt Instrument [Line Items]
Weighted Average Interest Rate	4.62%
Amount Issued	$ 384
Avis Budget Rental Car Funding Program August 2031
Debt Instrument [Line Items]
Weighted Average Interest Rate	4.98%
Amount Issued	$ 284