Inventories (Tables)

3 Months Ended

Mar. 31, 2013

Inventories

Major classes of inventory

	March 31,		December 31,		March 31,
	2013		2012		2012
Finished goods	$	1,014	$	957	$	1,061
Raw materials	124		137		126
Operating supplies	40		45		50
	$	1,178	$	1,139	$	1,237