v3.20.2

Restructuring and Other Charges (Tables) | 6 Months Ended
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Jun. 30, 2020
Restructuring and Related Activities [Abstract] |
Schedule of Restructuring Reserve by Segment | Arconic Corporation does not include Restructuring and other charges in the results of its reportable segments. The impact of allocating such charges to segment results would have been as follows:
|  | Second quarter ended June 30, |  |  |  | Six months ended June 30, |  |
|  | 2020 | ​ | 2019 | ​ | 2020 | ​ | 2019
Rolled Products |  | $ | 7 |  |  | $ | 2 |  |  | $ | 16 |  |  | $ | 8 |
Building and Construction Systems |  | 5 |  |  | 24 |  |  | 6 |  |  | 29 |
Extrusions |  | 3 |  |  | — |  |  | (28) |  |  | — |
Segment total |  | 15 |  |  | 26 |  |  | (6) |  |  | 37 |
Corporate |  | 62 |  |  | 12 |  |  | 64 |  |  | 3 |
|  | $ | 77 |  |  | $ | 38 |  |  | $ | 58 |  |  | $ | 40 |
Schedule of Restructuring Reserve | Activity and reserve balances for restructuring charges were as follows:
​ | Layoff costs | ​ | Other costs | ​ | Total
Reserve balances at December 31, 2018 | $ | 1 |  |  | $ | 3 |  |  | $ | 4 |
Cash payments | (12) |  |  | (3) |  |  | (15) |
Restructuring charges | 30 |  |  | 2 |  |  | 32 |
Other(1) | 1 |  |  | (1) |  |  | — |
Reserve balances at December 31, 2019 | 20 |  |  | 1 |  |  | 21 |
Separation-related adjustments(2) | 2 |  |  | — |  |  | 2 |
Cash payments | (11) |  |  | (2) |  |  | (13) |
Restructuring charges | 25 |  |  | 2 |  |  | 27 |
Other(1) | (7) |  |  | — |  |  | (7) |
Reserve balances at June 30, 2020(3) | $ | 29 |  |  | $ | 1 |  |  | $ | 30 |
_____________________ ​ (1) Other includes reversals of previously recorded restructuring charges and the effects of foreign currency translation.​ (2) Represents liabilities transferred from ParentCo on April 1, 2020 in connection with the Separation (see Note A).​ (3) The remaining reserves are expected to be paid in cash during the remainder of 2020, with the exception of $7 that is expected to be paid in 2021 related to special termination benefits.​

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- Definition Schedule of Restructuring Reserve by Segment + References No definition available. + Details
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- Definition Tabular disclosure of an entity's restructuring reserve that occurred during the period associated with the exit from or disposal of business activities or restructurings for each major type of cost. This element may also include a description of any reversal and other adjustment made during the period to the amount of an accrued liability for restructuring activities. This element may be used to encapsulate the roll forward presentations of an entity's restructuring reserve by type of cost and in total, and explanation of changes that occurred in the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)(2)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
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