Noncontrolling Interests (Tables)

12 Months Ended

Dec. 31, 2011

Noncontrolling Interests [Abstract]

Schedule Of Noncontrolling Shareholders' Interests

December 31,	2011		2010
Alcoa World Alumina and Chemicals	$	3,324	$	3,452
Other		27		23
	$	3,351	$	3,475