Inventories (Detail) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Inventory Disclosure [Abstract]
Raw materials	$ 5,421	$ 6,026
Work in process and other	3,150	3,345
Finished manufactured goods	4,898	4,969
Goods acquired for resale	10,539	11,516
Total inventory	$ 24,008	$ 25,856