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Restructuring and Other Charges (Tables) | 12 Months Ended
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Dec. 31, 2018
Restructuring and Related Activities [Abstract] |
Schedule of Restructuring and Other Charges | Restructuring and other charges for each year in the three-year period ended December 31, 2018 were comprised of the following:
| 2018 |  | 2017 |  | 2016
Asset impairments | $ | 13 |  |  | $ | 58 |  |  | $ | 80 |
Layoff costs | 20 |  |  | 64 |  |  | 68 |
Pension and Other postretirement benefits - net settlement and curtailment charges | 91 |  |  | — |  |  | 2 |
Net (gain) loss on divestitures of assets and businesses (T) | (109 | ) |  | 57 |  |  | 3 |
Other | 13 |  |  | (3 | ) |  | 27 |
Reversals of previously recorded layoff costs | (19 | ) |  | (11 | ) |  | (25 | )
Restructuring and other charges | $ | 9 |  |  | $ | 165 |  |  | $ | 155 |
Schedule of Restructuring and Other Charges by Reportable Segments, Pretax | Activity and reserve balances for restructuring charges were as follows:
| Layoff costs |  | Other exit costs |  | Total
Reserve balances at December 31, 2015 | $ | 84 |  |  | $ | 9 |  |  | $ | 93 |
2016 |  |  |  |  |
Cash payments | (73 | ) |  | (13 | ) |  | (86 | )
Restructuring charges | 70 |  |  | 27 |  |  | 97 |
Other(1) | (31 | ) |  | (14 | ) |  | (45 | )
Reserve balances at December 31, 2016 | $ | 50 |  |  | $ | 9 |  |  | $ | 59 |
2017 |  |  |  |  |
Cash payments | $ | (59 | ) |  | $ | (6 | ) |  | $ | (65 | )
Restructuring charges | 64 |  |  | 1 |  |  | 65 |
Other(2) | 1 |  |  | (2 | ) |  | (1 | )
Reserve balances at December 31, 2017 | $ | 56 |  |  | $ | 2 |  |  | $ | 58 |
2018 |  |  |  |  |
Cash payments | $ | (47 | ) |  | $ | (2 | ) |  | $ | (49 | )
Restructuring charges | 111 |  |  | 13 |  |  | 124 |
Other(3) | (110 | ) |  | 2 |  |  | (108 | )
Reserve balances at December 31, 2018 | $ | 10 |  |  | $ | 15 |  |  | $ | 25 |
(1) | In 2016, Other for layoff costs included reversals of previously recorded restructuring charges of $25, effects of foreign currency translation and other of $4, and a reclassification of $2 in pension costs, as the impact was reflected in Arconic’s separate liability for Accrued pension benefits. Other for other exit costs included reclassifications of $8 in asset retirement and $2 in environmental obligations, as the impacts were reflected in Arconic’s separate liabilities for asset retirement obligations and environmental remediation, and a reclassification of $4 in legal obligations, as the impact was included in Arconic’s separate liability for legal costs.
(2) | In 2017, Other for layoff costs included a reclassification of a stock awards reversal of $13, offset by reversals of previously recorded restructuring charges of $11 and foreign currency translation of $1.
(3) | In 2018, Other for layoff costs included reclassifications of $119 in pension costs and a $28 credit in postretirement benefits, as the impacts were reflected in Arconic's separate liabilities for Accrued pension benefits and Accrued postretirement benefits, and reversals of previously recorded restructuring charges of $19

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- Definition Tabular disclosure of the entity restructuring charges before income tax by reportable segment had such charges been included in the entity's segment results. + References No definition available. + Details
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- Definition Tabular disclosure of costs incurred for restructuring including, but not limited to, exit and disposal activities, remediation, implementation, integration, asset impairment, and charges against earnings from the write-down of assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.P.3) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140864-122747 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 3: 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) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
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