Inventories (Tables)

3 Months Ended

Mar. 31, 2012

Inventories [Abstract]

Schedule Of Inventory Components

	March 31, 2012		December 31, 2011
Finished goods	$	586	$	537
Work-in-process		1,001		911
Bauxite and alumina		688		656
Purchased raw materials		554		532
Operating supplies		268		263
	$	3,097	$	2,899