Inventories (Tables)

12 Months Ended

Dec. 31, 2016

Inventory Disclosure [Abstract]

Schedule of Inventory Components

December 31,	2016		2015
Finished goods	$	625	$	672
Work-in-process		1,144		1,115
Purchased raw materials		408		425
Operating supplies		76		72
	$	2,253	$	2,284