Inventories (Tables)

12 Months Ended

Dec. 31, 2015

Inventory Disclosure [Abstract]

Inventories

Inventories consisted of the following (in millions):

	December 31,
	2015		2014
Raw materials	$	201	$	198
Work in process	1,529		1,551
Finished goods	705		898
Total inventories	$	2,435	$	2,647