v3.26.1
Related Party Transactions - Schedule of Equity Method Investment in Balance Sheet and Statements of Comprehensive (Income) Expense (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Related Party Transaction [Line Items]          
Other (income) expense, net $ (1) $ (5) $ (7) $ (11)  
Receivables from AMV 19,589   19,589   $ 18,720
Equity method investment in AMV 375   375   403
Vehicles, net investment in lease with AMV 171   171   136
Avis Mobility Ventures LLC (AMV) | Related Party | Avis Mobility Ventures LLC (AMV)          
Related Party Transaction [Line Items]          
Other (income) expense, net 1 5 7 11  
Equity method investment in AMV 26   26   30
Avis Mobility Ventures LLC (AMV) | (Income) expense for services to AMV, net | Related Party | Avis Mobility Ventures LLC (AMV)          
Related Party Transaction [Line Items]          
Other (income) expense, net (1) 4 3 8  
Avis Mobility Ventures LLC (AMV) | (Income) loss on equity method investment in AMV, net | Related Party | Avis Mobility Ventures LLC (AMV)          
Related Party Transaction [Line Items]          
Other (income) expense, net 2 $ 1 4 $ 3  
Avis Mobility Ventures LLC (AMV) | Receivables from AMV | Related Party          
Related Party Transaction [Line Items]          
Receivables from AMV $ 7   $ 7   $ 6