XML 67 R114.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Debt - Credit Facilities (Details) |  |  |  | 12 Months Ended
--- | --- | --- | --- | ---
Jun. 29, 2018 | Sep. 16, 2016 USD ($) | Jul. 25, 2014 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) extension | Dec. 31, 2017
Debt Instrument [Line Items] |  |  |  |  |  |
Maximum borrowing capacity |  |  |  | $ 640,000,000 |  |
Arconic |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Proceeds from lines of credit |  |  |  | 400,000,000 |  |
Line of credit facility, repayment |  |  |  | $ 600,000,000 | $ 810,000,000 |
Weighted-average interest rate |  |  |  | 3.70% | 3.30% | 2.60%
Weighted-average maturity days |  |  |  | 49 days | 46 days | 46 days
Maximum |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Applicable margin on LIBOR loans |  |  |  | 1.50% |  |
Minimum |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Applicable margin on LIBOR loans |  |  |  | 0.50% |  |
Revolving Credit Agreement |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Revolving credit facility, term | 5 years | 5 years | 5 years |  |  |
Revolving Credit Agreement | Prior to Amendment |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Line of credit facility, outstanding borrowings |  |  | $ 4,000 |  |  |
Revolving Credit Agreement | After Amendment |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Line of credit facility, outstanding borrowings |  | $ 3,000 |  |  |  |
Maximum increase in borrowing capacity |  | $ 500,000,000 |  |  |  |
Ratio of indebtedness to consolidated EBITDA |  | 450.00% |  |  |  |
Ratio of indebtedness to consolidated EBITDA, after December 31, 2019 |  |  |  | 400.00% |  |
Consolidated Net Debt to consolidated EBITDA ratio |  |  |  | 350.00% |  |
Number of extensions allowable under terms of the Credit Facility | extension |  |  |  |  | 2 |
Extension of maturity period | 1 year |  |  |  |  |
Amount of principal indebtedness that would cause default |  |  |  | $ 100,000,000 |  |
Revolving Credit Agreement | Maximum |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Fees paid to maintain credit facility |  |  |  | 0.25% |  |
Revolving Credit Agreement | Letter of Credit | After Amendment |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Line of credit facility, outstanding borrowings |  | $ 1,000 |  |  |  |
Senior Unsecured Revolving Credit Facility |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Line of credit facility, outstanding borrowings |  |  |  | $ 0 | $ 0 |
Amounts borrowed under the credit agreement |  |  |  | $ 0 | $ 0 |

X
- Definition Applicable margin on LIBOR loans. + References No definition available. + Details
Name: | arnc_ApplicableMarginOnLiborLoans
Namespace Prefix: | arnc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Debt covenants net leverage ratio. + References No definition available. + Details
Name: | arnc_DebtCovenantsNetLeverageRatio
Namespace Prefix: | arnc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Debt Covenants Net Leverage Ratio After Year Four + References No definition available. + Details
Name: | arnc_DebtCovenantsNetLeverageRatioAfterYearFour
Namespace Prefix: | arnc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Debt covenants net leverage ratio after year three. + References No definition available. + Details
Name: | arnc_DebtCovenantsNetLeverageRatioAfterYearThree
Namespace Prefix: | arnc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Debt Instrument, Number of Extensions + References No definition available. + Details
Name: | arnc_DebtInstrumentNumberofExtensions
Namespace Prefix: | arnc_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Debt Weighted Average Maturity Term + References No definition available. + Details
Name: | arnc_DebtWeightedAverageMaturityTerm
Namespace Prefix: | arnc_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Extended additional maturity period. + References No definition available. + Details
Name: | arnc_ExtendedAdditionalMaturityPeriod
Namespace Prefix: | arnc_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line of credit facility, term. + References No definition available. + Details
Name: | arnc_LineOfCreditFacilityTerm
Namespace Prefix: | arnc_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line of Credit Facility, Maximum Increase in Borrowing Capacity + References No definition available. + Details
Name: | arnc_LineofCreditFacilityMaximumIncreaseinBorrowingCapacity
Namespace Prefix: | arnc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Minimum Indebtedness for Other Principal Amounts + References No definition available. + Details
Name: | arnc_MinimumIndebtednessforOtherPrincipalAmounts
Namespace Prefix: | arnc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Weighted average interest rate, outstanding borrowings. + References No definition available. + Details
Name: | arnc_WeightedAverageInterestRateOutstandingBorrowings
Namespace Prefix: | arnc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- 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. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 + Details
Name: | us-gaap_LineOfCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used. + References No definition available. + Details
Name: | us-gaap_LineOfCreditFacilityCommitmentFeePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
Name: | us-gaap_ProceedsFromLinesOfCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585 + Details
Name: | us-gaap_ProceedsFromLongTermLinesOfCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
Name: | us-gaap_RepaymentsOfLinesOfCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=srt_ParentCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=arnc_RevolvingCreditAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LoanRestructuringModificationAxis=arnc_PriorToAmendmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LoanRestructuringModificationAxis=arnc_AfterAmendmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=us-gaap_LetterOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=arnc_SeniorUnsecuredRevolvingCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |