Separation Transaction and Discontinued Operations (Tables)

12 Months Ended

Dec. 31, 2017

Discontinued Operations and Disposal Groups [Abstract]

Summary of Discontinued Operations in Financial Statements

The results of operations of Alcoa Corporation were presented as discontinued operations in the Statement of Consolidated Operations as summarized below:

	Ten months ended October 31,			Year ended  December 31,
	2016			2015
Sales	$	6,752		$	10,121
Cost of goods sold (exclusive of expenses below)	5,655			7,965
Selling, general administrative, and other expenses	164			214
Research and development	28			69
Provision for depreciation, depletion and amortization	593			772
Restructuring and other charges	102			981
Interest expense	28			25
Other (income) expenses, net	(75		)	30
Income from discontinued operations before income taxes	257			65
Provision for income taxes	73			106
Income (loss) from discontinued operations after income taxes	184			(41		)
Less: Net income from discontinued operations attributable to noncontrolling interests	63			124
Net income (loss) from discontinued operations	$	121		$	(165	)

Disposal Groups, Including Discontinued Operations, Schedule Of Depreciation, Depletion, And Amortization

The following table presents depreciation, depletion and amortization, restructuring and other charges, and purchases of property, plant and equipment of the discontinued operations related to Alcoa Corporation:

For the year ended December 31,	2016		2015
Depreciation, depletion and amortization	$	593	$	772
Restructuring and other charges	$	102	$	981
Capital expenditures	$	298	$	391