Inventories (Tables)

12 Months Ended

Dec. 31, 2015

Inventory Disclosure [Abstract]

Schedule of Inventory Components

December 31,	2015		2014
Finished goods	$	811	$	768
Work-in-process		1,272		1,035
Bauxite and alumina		445		578
Purchased raw materials		720		508
Operating supplies		194		193
	$	3,442	$	3,082