v3.26.3
Variable Interest Entities (Details) - USD ($)
$ in Millions
 9 Months Ended 12 Months Ended
Sep. 30, 2026
Dec. 31, 2025
Sep. 30, 2025
Consolidated [Abstract]      
Total assets $ 289,183 $ 281,284 $ 288,168
Total liabilities 224,664 218,116  
Variable Interest Entity, Not Primary Beneficiary      
Consolidated [Abstract]      
Total assets 4,100 3,600  
Total liabilities 600    
Maximum loss exposure amount 6,700 8,500  
Variable Interest Entity, Not Primary Beneficiary | Battery Cell Manufacturing Joint Ventures | Capital Addition Purchase Commitments      
Consolidated [Abstract]      
Committed capital contributions 1,900 4,000  
GM Financial      
Consolidated [Abstract]      
GM Financial receivables – current 46,453 45,266  
GM Financial receivables – non-current 44,979 44,384  
GM Financial short-term debt and current portion of long-term debt 42,939 35,012  
GM Financial long-term debt 70,005 79,018  
GM Financial | Consolidated VIE      
Consolidated [Abstract]      
Restricted cash – current 3,150 2,635  
Restricted cash – non-current 221 253  
GM Financial receivables – current 30,978 29,126  
GM Financial receivables – non-current 23,816 20,128  
GM Financial equipment on operating lease related assets 12,813 13,791  
GM Financial short-term debt and current portion of long-term debt 23,802 17,681  
GM Financial long-term debt $ 25,713 $ 29,232