Asset Retirement Obligations (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Carrying Value of Recorded AROs by Major Category

The following table details the carrying value of recorded AROs by major category (of which $75 and $76 was classified as a current liability as of December 31, 2012 and 2011, respectively):

December 31,	2012		2011
Spent pot lining disposal	$	182	$	187
Closure of bauxite residue areas		190		173
Mine reclamation		189		164
Demolition*		28		34
Landfill closure		17		17
Other		4		4
	$	610	$	579

* In 2011, AROs were recorded as a result of management’s decision to permanently shut down and demolish certain structures, each of which was previously temporarily idled for different reasons (see Note D).

Schedule of Changes in Carrying Value of Recorded AROs

The following table details the changes in the total carrying value of recorded AROs:

December 31,	2012			2011
Balance at beginning of year	$	579		$	534
Accretion expense		25			22
Payments		(81	)		(86	)
Liabilities incurred		80			115
Foreign currency translation and other		7			(6	)
Balance at end of year	$	610		$	579