Segment Information (Tables)

3 Months Ended

Mar. 31, 2014

Segment Reporting [Abstract]

Schedule of Operating Results of Alcoa's Reportable Segments

The operating results of Alcoa’s reportable segments were as follows (differences between segment totals and consolidated totals are in Corporate):

	Alumina			Primary Metals			Global Rolled Products			Engineered Products and Solutions		Total
First quarter ended March 31, 2014
Sales:
Third-party sales	$	845		$	1,424		$	1,677		$	1,443	$	5,389
Intersegment sales		510			734			43			—		1,287
Total sales	$	1,355		$	2,158		$	1,720		$	1,443	$	6,676
Profit and loss:
Equity loss	$	(5	)	$	(28	)	$	(5	)	$	—	$	(38	)
Depreciation, depletion, and amortization		97			124			58			40		319
Income taxes		40			(11	)		34			91		154
After-tax operating income (ATOI)		92			(15	)		59			189		325
First quarter ended March 31, 2013
Sales:
Third-party sales	$	826		$	1,758		$	1,779		$	1,423	$	5,786
Intersegment sales		595			727			51			—		1,373
Total sales	$	1,421		$	2,485		$	1,830		$	1,423	$	7,159
Profit and loss:
Equity income (loss)	$	1		$	(9	)	$	(4	)	$	—	$	(12	)
Depreciation, depletion, and amortization		109			135			57			40		341
Income taxes		14			1			39			84		138
ATOI		58			39			81			173		351

Schedule of Segment ATOI to Consolidated Net (Loss) Income Attributable to Alcoa

The following table reconciles total segment ATOI to consolidated net (loss) income attributable to Alcoa:

	First quarter ended March 31,
	2014			2013
Total segment ATOI	$	325		$	351
Unallocated amounts (net of tax):
Impact of LIFO		(7	)		(2	)
Interest expense		(78	)		(75	)
Noncontrolling interests		19			(21	)
Corporate expense		(67	)		(67	)
Restructuring and other charges		(321	)		(5	)
Other		(49	)		(32	)
Consolidated net (loss) income attributable to Alcoa	$	(178	)	$	149