Segment Information (Tables)

9 Months Ended

Sep. 30, 2017

Segment Reporting [Abstract]

Schedule of Operating Results of Arconic's Reportable Segments

The operating results of Arconic’s reportable segments were as follows:

	Engineered				Transportation
	Products and		Global Rolled		and Construction		Combined
	Solutions		Products		Solutions		Segment
Third quarter ended
September 30, 2017
Sales:
Third-party sales	$	1,476	$	1,234	$	517	$	3,227
Intersegment sales		—		36		—		36
Total sales	$	1,476	$	1,270	$	517	$	3,263
Profit and loss:
Depreciation and amortization		68		52		13		133
Adjusted EBITDA		312		140		83		535
Third quarter ended
September 30, 2016
Sales:
Third-party sales	$	1,406	$	1,285	$	450	$	3,141
Intersegment sales		—		30		—		30
Total sales	$	1,406	$	1,315	$	450	$	3,171
Profit and loss:
Depreciation and amortization		63		52		12		127
Adjusted EBITDA		296		143		76		515

	Engineered				Transportation
	Products and		Global Rolled		and Construction		Combined
	Solutions		Products		Solutions		Segment
Nine months ended
September 30, 2017
Sales:
Third-party sales	$	4,445	$	3,751	$	1,467	$	9,663
Intersegment sales		—		107		—		107
Total sales	$	4,445	$	3,858	$	1,467	$	9,770
Profit and loss:
Depreciation and amortization		198		153		37		388
Adjusted EBITDA		928		475		237		1,640
Nine months ended
September 30, 2016
Sales:
Third-party sales	$	4,320	$	3,785	$	1,346	$	9,451
Intersegment sales		—		88		—		88
Total sales	$	4,320	$	3,873	$	1,346	$	9,539
Profit and loss:
Depreciation and amortization		190		152		35		377
Adjusted EBITDA		930		461		216		1,607

Schedule of Combined Segment Adjusted EBITDA to Net Income Attributable to Arconic

The following table reconciles Combined segment adjusted EBITDA to Net income attributable to Arconic:

	Third quarter ended September 30,						Nine months ended September 30,
	2017			2016			2017			2016
Combined segment adjusted EBITDA	$	535		$	515		$	1,640		$	1,607
Unallocated amounts:
Depreciation and amortization		(140	)		(136	)		(410	)		(402	)
Restructuring and other charges		(19	)		(3	)		(118	)		(33	)
Impact of LIFO		(48	)		(1	)		(78	)		(26	)
Metal price lag		2			4			43			10
Corporate expense		(42	)		(113	)		(224	)		(304	)
Other		(17	)		(29	)		(56	)		(62	)
Operating income	$	271		$	237		$	797		$	790
Other income, net		1			11			526			40
Interest expense		(100	)		(126	)		(398	)		(371	)
Income from continuing operations before income taxes	$	172		$	122		$	925		$	459
Provision for income taxes		(53	)		(56	)		(272	)		(230	)
Discontinued operations		—			100			—			88
Net income attributable to Arconic	$	119		$	166		$	653		$	317