Segment Information (Tables)

9 Months Ended

Sep. 30, 2011

Segment Information

Schedule Of Operating Results Of Reportable Segments

	Alumina			Primary Metals			Flat- Rolled Products		Engineered Products and Solutions		Total
Third quarter ended September 30, 2011
Sales:
Third-party sales	$	879		$	2,124		$	1,974	$	1,373	$	6,350
Intersegment sales		751			798			48		—		1,597
Total sales	$	1,630		$	2,922		$	2,022	$	1,373	$	7,947
Profit and loss:
Equity income (loss)	$	2		$	(4	)	$	—	$	—	$	(2	)
Depreciation, depletion, and amortization		117			137			61		40		355
Income taxes		42			21			26		67		156
After-tax operating income (ATOI)		154			110			60		138		462
Third quarter ended September 30, 2010
Sales:
Third-party sales	$	717		$	1,688		$	1,645	$	1,173	$	5,223
Intersegment sales		506			589			46		—		1,141
Total sales	$	1,223		$	2,277		$	1,691	$	1,173	$	6,364
Profit and loss:
Equity income	$	1		$	—		$	—	$	1	$	2
Depreciation, depletion, and amortization		100			142			57		37		336
Income taxes		(22	)		(3	)		26		63		64
ATOI		70			78			66		114		328
Nine months ended September 30, 2011
Sales:
Third-party sales	$	2,615		$	6,249		$	5,951	$	3,990	$	18,805
Intersegment sales		2,107			2,559			179		—		4,845
Total sales	$	4,722		$	8,808		$	6,130	$	3,990	$	23,650
Profit and loss:
Equity income (loss)	$	27		$	(4	)	$	—	$	1	$	24
Depreciation, depletion, and amortization		332			420			179		119		1,050
Income taxes		146			129			94		201		570
ATOI		482			513			240		417		1,652
Nine months ended September 30, 2010
Sales:
Third-party sales	$	2,056		$	5,100		$	4,654	$	3,369	$	15,179
Intersegment sales		1,627			1,905			132		—		3,664
Total sales	$	3,683		$	7,005		$	4,786	$	3,369	$	18,843
Profit and loss:
Equity income	$	7		$	1		$	—	$	2	$	10
Depreciation, depletion, and amortization		299			431			173		116		1,019
Income taxes		46			15			72		142		275
ATOI		236			310			167		302		1,015

Schedule Of Reconciliation Of Total Segment ATOI To Consolidated Net Income (Loss)

	Third quarter  ended September 30,						Nine months  ended September 30,
	2011			2010			2011			2010
Total segment ATOI	$	462		$	328		$	1,652		$	1,015
Unallocated amounts (net of tax):
Impact of LIFO		2			(2	)		(49	)		(19	)
Interest expense		(81	)		(91	)		(259	)		(245	)
Noncontrolling interests		(53	)		(48	)		(166	)		(104	)
Corporate expense		(76	)		(71	)		(219	)		(197	)
Restructuring and other charges		(7	)		1			(35	)		(142	)
Discontinued operations		—			—			(5	)		(8	)
Other		(75	)		(56	)		(117	)		(304	)
Consolidated net income (loss) attributable to Alcoa	$	172		$	61		$	802		$	(4	)

Schedule Of Reconciliation Of Segment Assets

	September 30, 2011		December 31, 2010
Alumina	$	9,675	$	9,967
Primary Metals		12,222		11,947
Flat-Rolled Products		5,033		4,606
Engineered Products and Solutions		5,951		5,434
Total segment assets	$	32,881	$	31,954