Inventories (Tables)

3 Months Ended

Mar. 31, 2012

Inventories

Major classes of inventory

	March 31,		December 31,		March 31,
	2012		2011		2011
Finished goods	$	1,061	$	891	$	932
Raw materials	126		123		114
Operating supplies	50		47		57
	$	1,237	$	1,061	$	1,103