Inventories (Tables)

12 Months Ended

Dec. 31, 2016

Inventory Disclosure [Abstract]

Inventories

Inventories consisted of the following (in millions):

	December 31,
	2016		2015
Raw materials	$	225	$	201
Work in process	1,608		1,529
Finished goods	912		705
Total inventories	$	2,745	$	2,435