Restructuring and Other Charges, Net (Tables)

3 Months Ended

Mar. 31, 2019

Restructuring And Related Activities [Abstract]

Schedule Of Restructuring Charges, Net Before Income Tax Not Allocated To Reportable Segment

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:

	First quarter ended March 31,
	2019		2018
Bauxite	$	1	$	—
Alumina		1		(1	)
Aluminum		107		5
Segment total		109		4
Corporate		4		(23	)
Total Restructuring and other charges, net	$	113	$	(19	)

Activity Related to Layoff Costs and Other Costs Included Within Restructuring Reserve

The activity related to layoff costs and other costs included within the restructuring reserve balances is as follows:

	Layoff costs			Other costs			Total
Balance at December 31, 2017	$	11		$	34		$	45
Cash payments		(7	)		(95	)		(102	)
Restructuring and other charges, net		2			117			119
Other(1)		(1	)		(14	)		(15	)
Balance at December 31, 2018		5			42			47
Cash payments		(3	)		(11	)		(14	)
Restructuring and other charges, net		2			28			30
Other(1)		—			(2	)		(2	)
Balance at March 31, 2019	$	4		$	57		$	61

⁽¹⁾ Other includes reversals of previously recorded restructuring charges, the effects of foreign currency translation, and reclassifications to other reserves, primarily asset retirement obligations and environmental remediation obligations.