v3.26.1
GM Financial Receivables and Transactions - Finance Receivables (Details) - GM Financial - USD ($)
$ in Millions
Jun. 30, 2026
Mar. 31, 2026
Dec. 31, 2025
Jun. 30, 2025
Mar. 31, 2025
Dec. 31, 2024
Finance Receivables [Line Items]            
GM Financial receivables $ 92,189   $ 92,374      
Less: allowance for loan losses (2,866) $ (2,723) (2,725) $ (2,720) $ (2,567) $ (2,458)
GM Financial receivables, net 89,323   89,650      
Level 2            
Finance Receivables [Line Items]            
Fair value of GM Financial receivables 16,061   16,902      
Level 3            
Finance Receivables [Line Items]            
Fair value of GM Financial receivables 74,580   74,409      
Retail            
Finance Receivables [Line Items]            
GM Financial receivables 76,064   75,404 $ 77,837    
Less: allowance for loan losses (2,801)   (2,656)      
GM Financial receivables, net 73,262   72,748      
Commercial            
Finance Receivables [Line Items]            
GM Financial receivables 16,126   16,970      
Less: allowance for loan losses (65)   (68)      
GM Financial receivables, net 16,061   16,902      
Dealer cash management balance 3,400   3,400      
Commercial | Dealer Financing            
Finance Receivables [Line Items]            
GM Financial receivables 15,654   16,374      
Commercial | Other Financing            
Finance Receivables [Line Items]            
GM Financial receivables $ 472   $ 596