v3.23.1

Restructuring and Other Charges - Restructuring and Other Charges by Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges (E)	$ 0	$ 5
Operating segments
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges (E)	0	1
Operating segments | Rolled Products
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges (E)	0	0
Operating segments | Building and Construction Systems
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges (E)	0	0
Operating segments | Extrusions
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges (E)	0	(1)
Corporate, Non-Segment
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges (E)	$ 0	$ 4

X

- Definition

Restructuring, Settlement And Impairment Provisions, Including Gain (Loss) On Disposition Of Assets And Business

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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