XML 125 R68.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Restructuring and Other Charges - Activity and Reserve Balances for Restructuring Charges (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | Jun. 30, 2019 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Restructuring Reserve [Roll Forward] |  |  |  |  |
Restructuring reserve beginning balance |  |  | $ 25 | $ 58 | $ 59
Cash payments |  |  | (79) | (49) | (65)
Restructuring charges |  |  | 630 | 124 | 65
Other |  |  | (542) | (108) | (1)
Restructuring reserve ending balance | $ 34 |  | 34 | 25 | 58
Restructuring and other charges |  |  | 620 | 9 | 165
Gain (loss) on disposition of assets, before tax |  |  | (7) | (10) | 513
Layoff costs |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Restructuring reserve beginning balance |  |  | 10 | 56 | 50
Cash payments |  |  | (74) | (47) | (59)
Restructuring charges |  |  | 56 | 111 | 64
Other |  |  | 39 | (110) | 1
Restructuring reserve ending balance | 31 |  | 31 | 10 | 56
Restructuring and other charges |  |  | (10) |  |
Other exit costs |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Restructuring reserve beginning balance |  |  | 15 | 2 | 9
Cash payments |  |  | (5) | (2) | (6)
Restructuring charges |  |  | 574 | 13 | 1
Other |  |  | (581) | 2 | (2)
Restructuring reserve ending balance | 3 |  | 3 | 15 | 2
Restructuring and other charges |  |  | 26 | 19 | 69
Reclassification of a stock awards reversal |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Restructuring and other charges |  |  |  |  | 13
Reversal of prior restructuring charges |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Restructuring and other charges |  |  | 10 | 19 | 11
Effects of foreign currency translation and other |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Restructuring charges foreign currency translation |  |  |  |  | 1
Reclassification of pension costs |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Restructuring and other charges |  |  |  | 119 |
Credit in post-retirement costs |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Restructuring and other charges |  |  |  | 28 |
Elimination Of Life Insurance Benefits |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Restructuring and other charges |  |  | (58) |  |
Other, Pension Settlement Cost |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Restructuring and other charges |  |  | 9 |  |
Impairment Of Disks |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Restructuring and other charges |  | $ 428 | 428 |  |
Asset Impairment Associated With The Sale Of Business |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Restructuring and other charges |  |  | 112 |  |
Impairment For Trade Name Intangible Asset And Fixed Assets |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Restructuring and other charges |  |  | 25 |  |
Other Exit Cost Lease Termination Loss |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Restructuring and other charges |  |  | 12 |  |
Other Exit Costs, Other, Accelerated Depreciation |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Restructuring and other charges |  |  | 9 |  |
Impairment Of A Cost Method Investment |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Restructuring and other charges |  |  | 5 |  |
Other Miscellaneous Charges |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Restructuring and other charges |  |  | 1 |  | $ 12
Other Exit Costs, Reclassification Of Lease Exit Costs |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Restructuring and other charges |  |  | (9) |  |
Texarkana, Texas Rolling Mill |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Gain (loss) on disposition of assets, before tax | $ 20 |  | $ 20 | $ 154 |

X
- Definition Restructuring reserve period expenses. + References No definition available. + Details
Name: | arnc_RestructuringReservePeriodExpenses
Namespace Prefix: | arnc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 + Details
Name: | us-gaap_GainLossOnDispositionOfAssets1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -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://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 17 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3367-108585 + Details
Name: | us-gaap_PaymentsForRestructuring
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. + 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 -Subparagraph (b) -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 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 Reference 4: 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)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
Name: | us-gaap_RestructuringCharges
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. + 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)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
Name: | us-gaap_RestructuringReserve
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of expense (reversal of expense) which increases (decreases) the restructuring reserve from an adjustment to a previously accrued restructuring liability. + 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) -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
Name: | us-gaap_RestructuringReserveAccrualAdjustment1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_RestructuringReserveRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of foreign currency translation gain (loss) which decreases (increases) the restructuring reserve. + 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
Name: | us-gaap_RestructuringReserveTranslationAdjustment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=us-gaap_EmployeeSeveranceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=arnc_OtherExitCostsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=arnc_EmployeeSeveranceCostsStockAwardReversalsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=arnc_EmployeeSeveranceReversalOfPriorRestructuringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=arnc_EmployeeSeveranceCostEffectsOfForeignCurrencyTranslationAndOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=arnc_EmployeeSeveranceCostReclassificationOfPensionCostsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=arnc_EmployeeSeveranceCostsCreditInPostRetirementCostsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=arnc_EliminationOfLifeInsuranceBenefitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=arnc_OtherPensionSettlementCostMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=arnc_ImpairmentOfDisksMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=arnc_AssetImpairmentAssociatedWithTheSaleOfBusinessMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=arnc_ImpairmentForTradeNameIntangibleAssetAndFixedAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=arnc_OtherExitCostLeaseTerminationLossMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=arnc_OtherExitCostsOtherAcceleratedDepreciationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=arnc_ImpairmentOfACostMethodInvestmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=arnc_OtherMiscellaneousChargesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=arnc_OtherExitCostsReclassificationOfLeaseExitCostsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=arnc_TexarkanaTexasRollingMillMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |