Loss Contingency, Number of Former Executives

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- Definition

Total costs accrued as of the balance sheet date for environmental loss contingencies.

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- Definition

Amount of expense for newly incurred environmental loss contingencies. Includes, but is not limited to, remediation expense and interest accretion.

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- Definition

Amount of foreign currency translation gain (loss) which decreases (increases) the accrual for environmental loss contingencies.

+ References

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- Definition

Amount of cash outflow to settle environmental loss contingencies.

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Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable in twelve months or in the next operating cycle if longer.

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- Definition

Number of plaintiffs that have filed claims pertaining to a loss contingency.

+ References

No definition available.

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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.

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No definition available.

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Contingencies and Commitments (Details)			1 Months Ended	3 Months Ended
Contingencies and Commitments (Details)	Jun. 06, 2019 plaintiff	Sep. 15, 2017 executive	Jun. 30, 2019 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Site Contingency [Line Items]
Environmental remediation				$ 208,000,000
Environmental remediation, current				81,000,000	$ 83,000,000
Environmental remediation, additions				1
Environmental remediation, payments				2,000,000
Environmental remediation, foreign currency translation				1
Behrens v. Arconic
Site Contingency [Line Items]
Number of plaintiffs \| plaintiff	247
Sullivan v. Arconic
Site Contingency [Line Items]
Number of former executives \| executive		3
Massena West, NY
Site Contingency [Line Items]
Environmental remediation				$ 170,000,000	$ 171,000,000
Environmental remediation, additions			$ 25,000,000