v3.22.0.1

Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2021

Accounting Policies [Abstract]

Schedule of Weighed-Average Useful Lives of Properties, Plants, and Equipment

The following table details the weighted-average useful lives of structures and machinery and equipment by reporting segment (numbers in years):

			Structures						Machinery and equipment
Rolled Products			33						22
Building and Construction Systems			25						18
Extrusions			32						20

December 31,						2021						2020
Land and land rights						$	22					$	23
Structures:
Rolled Products						1,107						1,095
Building and Construction Systems						96						95
Extrusions						150						150
Other						152						153
						1,505						1,493
Machinery and equipment:
Rolled Products						4,816						4,787
Building and Construction Systems						203						205
Extrusions						523						520
Other						291						279
						5,833						5,791
						7,360						7,307
Less: accumulated depreciation and amortization						4,878						4,697
						2,482						2,610
Construction work-in-progress						169						102
						$	2,651					$	2,712

Schedule of Weighted-Average Useful Lives of Software and Other Intangible Assets by Reportable Segment

The following table details the weighted-average useful lives of software and other intangible assets by reporting segment (numbers in years):

			Software						Other intangible assets
Rolled Products			7						15
Building and Construction Systems			4						20
Extrusions			4						10

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

December 31, 2021						Gross carrying amount						Accumulated amortization						Net carrying amount
Computer software						$	555					$	(523)					$	32
Patents and licenses						27						(27)						—
Other						21						(15)						6
Total other intangible assets						$	603					$	(565)					$	38

December 31, 2020						Gross carrying amount						Accumulated amortization						Net carrying amount
Computer software						$	550					$	(510)					$	40
Patents and licenses						28						(28)						—
Other						21						(14)						7
Total other intangible assets						$	599					$	(552)					$	47

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Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(13))
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-Name Accounting Standards Codification
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Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment.

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-Publisher FASB
-Name Accounting Standards Codification
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