Restructuring and Other Charges, Net (Tables)

12 Months Ended

Dec. 31, 2024

Restructuring and Related Activities [Abstract]

Schedule of Restructuring and Other Charges, Net

Restructuring and other charges, net were comprised of the following:

	2024			2023			2022
Other costs	$	264		$	36		$	(7	)
Severance and employee termination costs		44			11			1
Asset retirement obligations (R)		44			41			34
Environmental remediation (S)		5			27			21
Asset impairments		5			50			58
Settlements and/or curtailments related to retirement benefits (O)		(1	)		21			632
Reversals of previously recorded charges		(20	)		(2	)		(122	)
Loss on divestitures	—			—				79
Restructuring and other charges, net	$	341		$	184		$	696

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:

	2024		2023		2022
Alumina	$	287	$	8	$	(27	)
Aluminum		—		169		82
Segment total		287		177		55
Corporate		54		7		641
Total Restructuring and other charges, net	$	341	$	184	$	696

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, 2021	$	3		$	90		$	93
Restructuring charges, net		1			73			74
Cash payments		(2	)		(37	)		(39	)
Reversals and other		(1	)		(10	)		(11	)
Balances at December 31, 2022		1			116			117
Restructuring charges, net		11			55			66
Cash payments		(6	)		(118	)		(124	)
Reversals and other		—			4			4
Balances at December 31, 2023		6			57			63
Restructuring charges, net		44			264			308
Cash payments		(38	)		(145	)		(183	)
Reversals and other		1			(8	)		(7	)
Balances at December 31, 2024	$	13		$	168		$	181