Inventories

6 Months Ended

Jun. 30, 2011

Inventories

Inventories

F. Inventories

	June 30, 2011		December 31, 2010
Finished goods	$	581	$	470
Work-in-process		1,090		814
Bauxite and alumina		710		621
Purchased raw materials		550		401
Operating supplies		270		256
	$	3,201	$	2,562

At June 30, 2011 and December 31, 2010, the total amount of inventories valued on a last in, first out (LIFO) basis was 35% and 36%, respectively. If valued on an average-cost basis, total inventories would have been $820 and $742 higher at June 30, 2011 and December 31, 2010, respectively.