v3.26.3
Inventories (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Inventory Disclosure [Abstract]    
Total productive material, supplies, and work in process $ 6,858 $ 6,405
Finished product, including service parts 8,782 8,062
Total inventories 15,640 14,467
Inventory [Line Items]    
Inventory allowance 1,700 2,400
Electric Vehicle Inventory    
Inventory [Line Items]    
Inventory allowance $ 800 $ 1,700