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Subsequent Events | 12 Months Ended
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Dec. 31, 2019
Subsequent Events [Abstract] |
Subsequent Events | Subsequent Events Management evaluated all activity of Arconic and concluded that no subsequent events have occurred that would require recognition in the Consolidated Financial Statements or disclosure in the Notes to the Consolidated Financial Statements, except as noted below: See Note K for details of an amendment to remove GRP from the sale of receivables program. See Note S for details of the divestiture of the Company's aluminum rolling mill in Itapissuma, Brazil. See Note U for updates on the planned Separation of Arconic. On February 25, 2020, the Company announced that its current Chief Executive Officer, John C. Plant, and Tolga Oal, who currently serves as President of the Company’s Engineered Structures business unit, will serve as Co-Chief Executive Officers of the Company following the Separation of Arconic. Until the Separation of Arconic, Mr. Plant will continue to serve as sole Chief Executive Officer of the Company and Mr. Oal will hold the title of Co-Chief Executive Officer Designate. Mr. Plant will serve as Executive Chairman of the Board of Directors of Howmet Aerospace following the Separation of Arconic.

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- Definition The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 855 -URI http://asc.fasb.org/topic&trid=2122774 + Details
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