Debt Under Vehicle Programs and Borrowing Arrangements (Narrative) (Details) - USD ($) $ in Millions	Sep. 30, 2023	Jun. 30, 2023	Apr. 30, 2023	Jan. 31, 2023
Avis Budget Rental Car Funding Program April 2028
Debt Instrument [Line Items]
Asset-backed securities, at carrying value				$ 500
Weighted average interest rate				5.36%
Avis Budget Rental Car Funding Program October 2026
Debt Instrument [Line Items]
Asset-backed securities, at carrying value				$ 350
Weighted average interest rate				5.31%
Avis Budget Rental Car Funding Program February 2027
Debt Instrument [Line Items]
Asset-backed securities, at carrying value			$ 450
Weighted average interest rate			5.67%
Avis Budget Rental Car Funding Program June 2028
Debt Instrument [Line Items]
Asset-backed securities, at carrying value			$ 550
Weighted average interest rate			5.76%
Avis Budget Rental Car Funding Program April 2027
Debt Instrument [Line Items]
Asset-backed securities, at carrying value		$ 476
Weighted average interest rate		5.91%
Avis Budget Rental Car Funding Program December 2028
Debt Instrument [Line Items]
Asset-backed securities, at carrying value		$ 526
Weighted average interest rate		5.98%
Avis Budget Rental Car Funding Program August 2027
Debt Instrument [Line Items]
Asset-backed securities, at carrying value	$ 300
Weighted average interest rate	6.09%
Avis Budget Rental Car Funding Program February 2029
Debt Instrument [Line Items]
Asset-backed securities, at carrying value	$ 700
Weighted average interest rate	6.21%