Restructuring and Other Charges, Net (Tables)

3 Months Ended

Mar. 31, 2022

Restructuring And Related Activities [Abstract]

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:

	First quarter ended March 31,
	2022			2021
Bauxite	$	58		$	—
Alumina		—			—
Aluminum		68			15
Segment total		126			15
Corporate		(1	)		(8	)
Total Restructuring and other charges, net	$	125		$	7

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
Balance at December 31, 2020	$	6		$	57		$	63
Restructuring and other charges, net		1			80			81
Cash payments		(4	)		(25	)		(29	)
Reversals and other		—			(22	)		(22	)
Balance at December 31, 2021		3			90			93
Restructuring and other charges, net		—			68			68
Cash payments		(1	)		(4	)		(5	)
Balance at March 31, 2022	$	2		$	154		$	156