Inventories (Tables)

9 Months Ended

Sep. 30, 2020

Inventory Disclosure [Abstract]

Schedule of inventories

Inventories are comprised of the following (in millions).

	September 30, 2020		December 31, 2019
Raw materials	$	4,705	$	4,492
Work in process and other		2,712		2,700
Finished manufactured goods		4,645		4,821
Goods acquired for resale		7,299		7,839
	$	19,361	$	19,852