Inventories (Tables)

12 Months Ended

Dec. 31, 2016

Inventory Disclosure [Abstract]

Schedule of inventories

Inventories are comprised of the following (in millions).

	December 31,
	2016		2015
Raw materials	$	2,789	$	1,852
Work in process and other		2,506		778
Finished manufactured goods		4,033		3,369
Goods acquired for resale		6,399		5,917
	$	15,727	$	11,916