Inventories (Detail) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Inventory Disclosure [Abstract]
Raw materials	$ 6,484	$ 6,381
Work in process and other	3,365	3,464
Finished manufactured goods	5,955	5,739
Goods acquired for resale	9,695	9,782
Total inventory	$ 25,499	$ 25,366