Restructuring and Other Charges, Net (Tables)

12 Months Ended

Dec. 31, 2019

Restructuring And Related Activities [Abstract]

Schedule of Restructuring and Other Charges, Net

Restructuring and other charges, net for each year in the three-year period ended December 31, 2019 were comprised of the following:

	2019			2018			2017
Loss on divestitures	$	446		$	—		$	—
Asset impairments		225			18			40
Settlements and/or curtailments related to retirement benefits (N)		119			331			8
Asset retirement obligations (Q)		75			5			10
Environmental remediation (R)		69			2			8
Severance and employee termination costs		51			2			15
Allowance on value-added tax credits (T)		—			107			—
Power contract payments – non-recurring		—			62			244
Legal matter in Italy		—			—			(22	)
Other		52			48			49
Reversals of previously recorded layoff and other costs		(6	)		(48	)		(43	)
Restructuring and other charges, net	$	1,031		$	527		$	309

Schedule of Restructuring and Other Charges, Net by Reportable Segments, Pretax

Alcoa Corporation does not include Restructuring and other charges, net in the results of its reportable segments. The impact of allocating such charges to segment results would have been as follows:

	2019		2018		2017
Bauxite	$	5	$	1	$	2
Alumina		272		112		3
Aluminum		611		102		51
Segment total		888		215		56
Corporate		143		312		253
Total Restructuring and other charges, net	$	1,031	$	527	$	309

Activity and Reserve Balances for Restructuring Charges

Activity and reserve balances for restructuring charges were as follows:

	Severance and employee termination costs			Other costs			Total
Balances at December 31, 2016	$	38		$	28		$	66
Restructuring charges, net		15			50			65
Cash payments		(30	)		(43	)		(73	)
Reversals and other		(12	)		(1	)		(13	)
Balances at December 31, 2017		11			34			45
Restructuring charges, net		2			109			111
Cash payments		(7	)		(95	)		(102	)
Reversals and other		(1	)		(6	)		(7	)
Balances at December 31, 2018		5			42			47
Restructuring charges, net		51			161			212
Cash payments		(19	)		(99	)		(118	)
Reversals and other		(2	)		(2	)		(4	)
Balances at December 31, 2019	$	35		$	102		$	137