v3.26.3
Related Party Transactions - Master Dealer Agreement (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Related Party Transaction [Line Items]        
Net sales and operating revenues, from related parties $ 8,040 $ 5,647 $ 21,848 $ 14,719
DriveTime Automotive Group, Inc. | Master Dealer Agreement | Related Party        
Related Party Transaction [Line Items]        
Net sales and operating revenues, from related parties 125 91 349 242
General and administrative expense $ 9 $ 7 $ 26 $ 18