v3.26.3
Related Party Transactions - Schedule of Related Party Transactions (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Commercial Finance Receivables          
Related Party Transaction [Line Items]          
Commercial finance receivables due from dealers consolidated by GM $ 18,024   $ 18,024   $ 17,365
Retail Finance Receivables          
Related Party Transaction [Line Items]          
Commercial finance receivables due from dealers consolidated by GM 76,651 $ 75,857 76,651 $ 75,857 75,404
Related Party          
Related Party Transaction [Line Items]          
Subvention receivable from GM 501   501   452
Taxes payable to GM 86   86   33
Leased vehicle subvention earned 469 461 1,436 1,313  
Related Party | Commercial Finance Receivables          
Related Party Transaction [Line Items]          
Commercial finance receivables due from dealers consolidated by GM 349   349   395
Commercial loan funding payable to GM 118   118   $ 94
Interest subvention earned 25 22 70 67  
Related Party | Retail Finance Receivables          
Related Party Transaction [Line Items]          
Interest subvention earned $ 273 $ 322 $ 835 $ 1,008