Properties, Plants, and Equipment, Net (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Properties, Plants, and Equipment, Net

December 31,	2012		2011
Land and land rights, including mines	$	676	$	665
Structures:
Alumina:
Alumina refining		3,319		3,280
Bauxite mining		1,563		1,597
Primary Metals:
Aluminum smelting		4,042		3,950
Power generation		604		667
Global Rolled Products		1,232		1,204
Engineered Products and Solutions		678		648
Other		760		714
		12,198		12,060
Machinery and equipment:
Alumina:
Alumina refining		5,279		5,223
Bauxite mining		650		661
Primary Metals:
Aluminum smelting		8,114		8,266
Power generation		994		1,012
Global Rolled Products		5,174		5,059
Engineered Products and Solutions		2,415		2,252
Other		883		764
		23,509		23,237
		36,383		35,962
Less: accumulated depreciation, depletion, and amortization		19,190		18,326
		17,193		17,636
Construction work-in-progress		1,754		1,646
	$	18,947	$	19,282