v3.26.1
Inventories (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Inventory Disclosure [Abstract]    
Total productive material, supplies, and work in process $ 6,782 $ 6,405
Finished product, including service parts 8,808 8,062
Total inventories 15,590 14,467
Inventory [Line Items]    
Inventory allowance 2,300 2,400
Electric Vehicle Inventory    
Inventory [Line Items]    
Inventory allowance $ 1,500 $ 1,700