Properties, Plants, and Equipment, Net

12 Months Ended

Dec. 31, 2012

H. 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

As of December 31, 2012 and 2011, the net carrying value of temporarily idled smelting assets was $325 and $166, representing 591 kmt and 353 kmt of idle capacity, respectively. Additionally, the net carrying value of permanently idled smelting assets, representing 291 kmt, was written off at the end of 2011 (see Note D). Also, the net carrying value of temporarily idled refining assets was $68 and $65 as of December 31, 2012 and 2011, representing 1,277 and 1,177 kmt of idle capacity, respectively.

- Definition

The entire disclosure for long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. This disclosure may include property plant and equipment accounting policies and methodology, a schedule of property, plant and equipment gross, additions, deletions, transfers and other changes, depreciation, depletion and amortization expense, net, accumulated depreciation, depletion and amortization expense and useful lives, income statement disclosures, assets held for sale and public utility disclosures.

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