v3.22.0.1

Summary of Significant Accounting Policies - Schedule of Weighted-Average Useful Lives of Properties, Plants, and Equipment (Details)	12 Months Ended
	Dec. 31, 2021
Structures | Rolled Products
Property, Plant and Equipment [Line Items]
Weighted-average useful lives	33 years
Structures | Building and Construction Systems
Property, Plant and Equipment [Line Items]
Weighted-average useful lives	25 years
Structures | Extrusions
Property, Plant and Equipment [Line Items]
Weighted-average useful lives	32 years
Machinery and equipment | Rolled Products
Property, Plant and Equipment [Line Items]
Weighted-average useful lives	22 years
Machinery and equipment | Building and Construction Systems
Property, Plant and Equipment [Line Items]
Weighted-average useful lives	18 years
Machinery and equipment | Extrusions
Property, Plant and Equipment [Line Items]
Weighted-average useful lives	20 years

X

- 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

No definition available.

+ Details

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X

- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

+ Details

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X

- Details

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X

- Details

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X

- Details

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X

- Details

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X

- Details

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Data Type:	na
Balance Type:
Period Type: