Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Goodwill which is Included in Other Noncurrent Assets

Goodwill, which is included in Other noncurrent assets on the accompanying Consolidated Balance Sheet, was as follows:

December 31,	2023		2022
Alumina	$	4	$	4
Aluminum		—		—
Corporate(1)		142		141
	$	146	$	145

The carrying value of Corporate’s goodwill is net of accumulated impairment losses of $742 as of both December 31, 2023 and 2022. As of December 31, 2023, the $142 of goodwill reflected in Corporate is allocated to Alcoa Corporation's Alumina reportable segment for purposes of impairment testing (see Note B). This goodwill is reflected in Corporate for segment reporting purposes because it is not included in management’s assessment of performance by the reportable segment. Changes in the carrying amount of goodwill were attributable to foreign currency translation as of December 31, 2023 and 2022.

Other Intangible Assets

Other intangible assets, which are included in Other noncurrent assets on the accompanying Consolidated Balance Sheet, were as follows:

	2023							2022
December 31,	Gross carrying amount		Accumulated amortization			Net carrying amount		Gross carrying amount		Accumulated amortization			Net carrying amount
Computer software	$	207	$	(194	)	$	13	$	206	$	(202	)	$	4
Patents and licenses		25		(10	)		15		25		(9	)		16
Other intangibles		21		(12	)		9		20		(11	)		9
Total other intangible assets	$	253	$	(216	)	$	37	$	251	$	(222	)	$	29