Segment Information (Tables)

3 Months Ended

Mar. 31, 2012

Segment Information [Abstract]

Schedule Of Operating Results And Assets Of Alcoa's Reportable Segments

	Alumina			Primary Metals			Global Rolled Products*			Engineered Products and Solutions		Total
First quarter ended March 31, 2012
Sales:
Third-party sales	$	775		$	1,944		$	1,845		$	1,390	$	5,954
Intersegment sales		617			761			44			—		1,422
Total sales	$	1,392		$	2,705		$	1,889		$	1,390	$	7,376
Profit and loss:
Equity income (loss)	$	1		$	(2	)	$	(1	)	$	—	$	(2	)
Depreciation, depletion, and amortization		114			135			57			40		346
Income taxes		(1	)		(13	)		49			72		107
After-tax operating income (ATOI)		35			10			96			155		296
First quarter ended March 31, 2011
Sales:
Third-party sales	$	810		$	1,980		$	1,892		$	1,247	$	5,929
Intersegment sales		633			839			69			—		1,541
Total sales	$	1,443		$	2,819		$	1,961		$	1,247	$	7,470
Profit and loss:
Equity income	$	3		$	1		$	—		$	1	$	5
Depreciation, depletion, and amortization		103			141			58			38		340
Income taxes		44			53			33			62		192
ATOI		142			202			81			130		555

* In the first quarter of 2012, Alcoa changed the name of the Flat-Rolled Products segment to the Global Rolled Products segment

Schedule Of Segment Reporting Information To Consolidated Net Income Attributable To Alcoa

	First quarter ended March  31,
	2012			2011
Total segment ATOI	$	296		$	555
Unallocated amounts (net of tax):
Impact of LIFO		—			(24	)
Interest expense		(80	)		(72	)
Noncontrolling interests		(5	)		(58	)
Corporate expense		(64	)		(67	)
Restructuring and other charges		(7	)		(6	)
Discontinued operations		—			(1	)
Other		(46	)		(19	)
Consolidated net income attributable to Alcoa	$	94		$	308