Table: Schedule of Defined Benefit Plans Disclosures [Table]

Line Label Object Class Period Type Balance Name
1 Schedule of Defined Benefit Plans Disclosures [Table] [Table]

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 us-gaap:ScheduleOfDefinedBenefitPlansDisclosuresTable
2 Legal Entity [Axis] [Axis]

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 dei:LegalEntityAxis
3 Consolidated Entity [Domain] [Domain]

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 dei:EntityDomain
4 Defined Benefit Plans and Other Postretirement Benefit Plan [Axis] [Axis]

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 us-gaap:DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
5 Defined Benefit Plans and Other Postretirement Benefit Plan, All Plans [Domain] [Domain]

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 us-gaap:DefinedBenefitPlansDomain
6 Pension Plans, Defined Benefit [Member] [Member]

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 us-gaap:PensionPlansDefinedBenefitMember
7 United States Pension Plans of US Entity, Defined Benefit [Member] [Member]

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 us-gaap:UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember
8 Domestic Pension Plans of Foreign Entity, Defined Benefit [Member] [Member]

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 us-gaap:DomesticPensionPlansOfForeignEntityDefinedBenefitMember
9 Foreign Pension Plans, Defined Benefit [Member] [Member]

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 us-gaap:ForeignPensionPlansDefinedBenefitMember
10 Other Postretirement Benefit Plans, Defined Benefit [Member] [Member]

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 us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember
11 United States Postretirement Benefit Plans of US Entity, Defined Benefit [Member] [Member]

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 us-gaap:UnitedStatesPostretirementBenefitPlansOfUSEntityDefinedBenefitMember
12 Domestic Postretirement Benefit Plans of Foreign Entity, Defined Benefit [Member] [Member]

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 us-gaap:DomesticPostretirementBenefitPlansOfForeignEntityDefinedBenefitMember
13 Foreign Postretirement Benefit Plans, Defined Benefit [Member] [Member]

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 us-gaap:ForeignPostretirementBenefitPlansDefinedBenefitMember
14 Supplemental Employee Retirement Plans, Defined Benefit [Member] [Member]

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 us-gaap:SupplementalEmployeeRetirementPlanDefinedBenefitMember
15 Other Pension Plans, Defined Benefit [Member] [Member]

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 us-gaap:OtherPensionPlansDefinedBenefitMember
16 Other Pension Plans, Postretirement or Supplemental Plans, Defined Benefit [Member] [Member]

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 us-gaap:OtherPensionPlansPostretirementOrSupplementalPlansDefinedBenefitMember
17 Defined Benefit Plan Asset Category [Axis] [Axis]

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 us-gaap:DefinedBenefitPlanByPlanAssetCategoriesAxis
18 Plan Asset Category, All Categories [Domain] [Domain]

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 us-gaap:PlanAssetCategoriesDomain
19 Cash and Cash Equivalents [Member] [Member]

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 us-gaap:CashAndCashEquivalentsMember
20 Equity Securities [Member] [Member]

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 us-gaap:EquitySecuritiesMember
21 Equity Securities, Industry [Member] [Member]

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 us-gaap:EquitySecuritiesIndustryMember
22 Equity Securities, Entity Size [Member] [Member]

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 us-gaap:EquitySecuritiesEntitySizeMember
23 Equity Securities, Investment Objective [Member] [Member]

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 us-gaap:EquitySecuritiesInvestmentObjectiveMember
24 Equity Securities, Other [Member] [Member]

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 us-gaap:EquitySecuritiesOtherMember
25 Debt Securities [Member] [Member]

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 us-gaap:DebtSecuritiesMember
26 US Treasury and Government [Member] [Member]

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 us-gaap:USTreasuryAndGovernmentMember
27 US Treasury Securities [Member] [Member]

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 us-gaap:USTreasurySecuritiesMember
28 US Government Agencies Debt Securities [Member] [Member]

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 us-gaap:USGovernmentAgenciesDebtSecuritiesMember
29 US Government-sponsored Enterprises Debt Securities [Member] [Member]

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 us-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMember
30 US States and Political Subdivisions Debt Securities [Member] [Member]

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 us-gaap:USStatesAndPoliticalSubdivisionsMember
31 Foreign Government Debt Securities [Member] [Member]

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 us-gaap:ForeignGovernmentDebtSecuritiesMember
32 Corporate Debt Securities [Member] [Member]

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*

 us-gaap:CorporateDebtSecuritiesMember
33 Domestic Corporate Debt Securities [Member] [Member]

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 us-gaap:DomesticCorporateDebtSecuritiesMember
34 Foreign Corporate Debt Securities [Member] [Member]

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*

 us-gaap:ForeignCorporateDebtSecuritiesMember
35 Commercial Paper, Not Included with Cash and Cash Equivalents [Member] [Member]

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 us-gaap:CommercialPaperNotIncludedWithCashAndCashEquivalentsMember
36 Convertible Debt Securities [Member] [Member]

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 us-gaap:ConvertibleDebtSecuritiesMember
37 Asset-backed Securities [Member] [Member]

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 us-gaap:AssetBackedSecuritiesMember
38 Collateralized Mortgage Backed Securities [Member] [Member]

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 us-gaap:MortgageBackedSecuritiesMember
39 Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] [Member]

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 us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember
40 Mortgage-backed Securities, Issued by Private Enterprises [Member] [Member]

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 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
41 Asset-backed Securities, Securitized Loans and Receivables [Member] [Member]

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*

 us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMember
42 Interest-Only-Strip [Member] [Member]

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 us-gaap:InterestOnlyStripMember
43 Principal-Only-Strip [Member] [Member]

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 us-gaap:PrincipalOnlyStripMember
44 Structured Finance [Member] [Member]

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 us-gaap:StructuredFinanceMember
45 Derivative [Member] [Member]

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 us-gaap:DerivativeMember
46 Interest Rate Contract [Member] [Member]

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 us-gaap:InterestRateContractMember
47 Foreign Exchange Contract [Member] [Member]

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 us-gaap:ForeignExchangeContractMember
48 Cross Currency Interest Rate Contract [Member] [Member]

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 us-gaap:CrossCurrencyInterestRateContractMember
49 Equity Contract [Member] [Member]

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 us-gaap:EquityContractMember
50 Commodity Contract [Member] [Member]

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 us-gaap:CommodityContractMember
51 Credit Risk Contract [Member] [Member]

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 us-gaap:CreditRiskContractMember
52 Other Contract [Member] [Member]

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 us-gaap:OtherContractMember
53 Money Market Funds [Member] [Member]

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 us-gaap:MoneyMarketFundsMember
54 Equity Funds [Member] [Member]

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 us-gaap:EquityFundsMember
55 Fixed Income Funds [Member] [Member]

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 us-gaap:FixedIncomeFundsMember
56 Exchange Traded Funds [Member] [Member]

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 us-gaap:ExchangeTradedFundsMember
57 Private Equity Funds [Member] [Member]

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 us-gaap:PrivateEquityFundsMember
58 Private Equity Funds, Domestic [Member] [Member]

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 us-gaap:PrivateEquityFundsDomesticMember
59 Private Equity Funds, Foreign [Member] [Member]

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 us-gaap:PrivateEquityFundsForeignMember
60 Hedge Funds [Member] [Member]

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 us-gaap:HedgeFundsMember
61 Hedge Funds, Equity [Member] [Member]

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 us-gaap:HedgeFundsEquityMember
62 Hedge Funds, Event Driven [Member] [Member]

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 us-gaap:HedgeFundsEventDrivenMember
63 Hedge Funds, Global Opportunity [Member] [Member]

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 us-gaap:HedgeFundsGlobalOpportunityMember
64 Hedge Funds, Multi-strategy [Member] [Member]

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 us-gaap:HedgeFundsMultistrategyMember
65 Real Estate [Member] [Member]

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 us-gaap:RealEstateMember
66 Commercial Real Estate [Member] [Member]

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 us-gaap:CommercialRealEstateMember
67 Residential Real Estate [Member] [Member]

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 us-gaap:ResidentialRealEstateMember
68 Venture Capital Funds [Member] [Member]

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 us-gaap:VentureCapitalFundsMember
69 Defined Benefit Plan, Fair Value of Plan Assets Measurement Basis [Axis] [Axis]

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 us-gaap:DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis
70 Fair Value Plan Asset Measurement, All [Domain] [Domain]

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 us-gaap:FairValuePlanAssetMeasurementDomain
71 Fair Value, Inputs, Level 1 [Member] [Member]

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 us-gaap:FairValueInputsLevel1Member
72 Fair Value, Inputs, Level 2 [Member] [Member]

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 us-gaap:FairValueInputsLevel2Member
73 Fair Value, Inputs, Level 3 [Member] [Member]

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 us-gaap:FairValueInputsLevel3Member
74 Netting and Collateral [Member] [Member]

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 us-gaap:NettingAndCollateralMember
75 Defined Benefit Plan Disclosure [Line Items] [Line Items]

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 us-gaap:DefinedBenefitPlanDisclosureLineItems
76 Schedule of Defined Benefit Plans Disclosures [Table Text Block] [Concept] Text Block (HTML) For Period

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 us-gaap:ScheduleOfDefinedBenefitPlansDisclosuresTextBlock
77 Defined Benefit Plan Disclosure [Hierarchy] [Abstract]

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 added:DefinedBenefitPlanDisclosureHierarchy
78 Defined Benefit Plan, Unfunded Plan [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanUnfundedPlan
79 Defined Benefit Plan, Accumulated Benefit Obligation [Concept] Monetary As Of Credit us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
80 Defined Benefit Plan, Estimated Future Employer Contributions in Next Fiscal Year [Concept] Monetary As Of Debit us-gaap:DefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYear
81 Defined Benefit Plan, Estimated Future Employer Contributions in Next Fiscal Year, Description [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYearDescription
82 Defined Benefit Plan, Estimated Amount of Plan Participants' Future Benefits Covered by Insurance Contracts Issued by Employer or Related Parties [Concept] Monetary As Of Debit us-gaap:DefinedBenefitPlanEstimatedAmountOfPlanParticipantsFutureBenefitsCoveredByInsuranceContractsIssuedByEmployerOrRelatedParties
83 Defined Benefit Plan, Significant Transactions Between Employer or Related Parties and Plan During Year [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanSignificantTransactionsBetweenEmployerOrRelatedPartiesAndPlanDuringYear
84 Defined Benefit Plan, Alternative Method Used to Amortize Prior Service Amounts [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanAlternativeMethodUsedToAmortizePriorServiceAmounts
85 Defined Benefit Plan, Alternative Method Used to Amortize Net Gains and Losses [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanAlternativeMethodUsedToAmortizeNetGainsAndLosses
86 Defined Benefit Plan, Pension, Method to Determine Vested Benefit Obligation [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanPensionMethodToDetermineVestedBenefitObligation
87 Defined Benefit Plan, Description of any Substantive Commitment Used as Basis for Accounting for Benefit Obligation [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanDescriptionOfAnySubstantiveCommitmentUsedAsBasisForAccountingForBenefitObligation
88 Defined Benefit Plan, Explanation of Significant Change in Benefit Obligation or Plan Assets Not Apparent from Other Required Disclosures [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanExplanationOfSignificantChangeInBenefitObligationOrPlanAssetsNotApparentFromOtherRequiredDisclosures
89 Defined Benefit Plan, Amount and Timing of Assets Expected to be Returned to Employer During Following 12 Month Period [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanAmountAndTimingOfAssetsExpectedToBeReturnedToEmployerDuringFollowing12MonthPeriod
90 Defined Benefit Plan, Measurement Date [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanMeasurementDate
91 Defined Benefit Plan, Other Information [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanOtherInformation
92 Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] [Abstract]

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 us-gaap:DefinedBenefitPlanChangeInBenefitObligationRollForward
93 Defined Benefit Plan, Benefit Obligation, Beginning Balance [Concept] Monetary As Of Credit us-gaap:DefinedBenefitPlanBenefitObligation
94 Defined Benefit Plan, Benefit Obligation, Period Increase (Decrease) [Roll Up] [Abstract]

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 added:DefinedBenefitPlanBenefitObligationPeriodIncreaseDecreaseRollUp
95 Defined Benefit Plan, Service Cost [Concept] Monetary For Period Debit us-gaap:DefinedBenefitPlanServiceCost
96 Defined Benefit Plan, Interest Cost [Concept] Monetary For Period Debit us-gaap:DefinedBenefitPlanInterestCost
97 Defined Benefit Plan, Contributions by Plan Participants [Concept] Monetary For Period Credit us-gaap:DefinedBenefitPlanContributionsByPlanParticipants
98 Defined Benefit Plan, Actuarial Net (Gains) Losses [Concept] Monetary For Period Debit us-gaap:DefinedBenefitPlanActuarialNetGainsLosses
99 Defined Benefit Plan, Foreign Currency Exchange Rate Changes, Benefit Obligation [Concept] Monetary For Period Credit us-gaap:DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation
100 Defined Benefit Plan, Benefits Paid [Concept] Monetary For Period Debit us-gaap:DefinedBenefitPlanBenefitsPaid
101 Defined Benefit Plan, Gross Prescription Drug Subsidy Receipts Received [Concept] Monetary For Period Credit us-gaap:DefinedBenefitPlanGrossPrescriptionDrugSubsidyReceiptsReceived
102 Defined Benefit Plan, Plan Amendments [Concept] Monetary For Period Credit us-gaap:DefinedBenefitPlanPlanAmendments
103 Defined Benefit Plan, Business Combinations and Acquisitions, Benefit Obligation [Concept] Monetary For Period Credit us-gaap:DefinedBenefitPlanBusinessCombinationsAndAcquisitionsBenefitObligation
104 Defined Benefit Plan, Divestitures, Benefit Obligation [Concept] Monetary For Period Debit us-gaap:DefinedBenefitPlanDivestituresBenefitObligation
105 Defined Benefit Plan, Curtailments [Concept] Monetary For Period Debit us-gaap:DefinedBenefitPlanCurtailments
106 Defined Benefit Plan, Settlements, Benefit Obligation [Concept] Monetary For Period Debit us-gaap:DefinedBenefitPlanSettlementsBenefitObligation
107 Defined Benefit Plan, Special Termination Benefits [Concept] Monetary For Period Credit us-gaap:DefinedBenefitPlanSpecialTerminationBenefits
108 Defined Benefit Plan, Benefit Obligation, Period Increase (Decrease), Total [Concept] Monetary For Period

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 us-gaap:DefinedBenefitPlanBenefitObligationPeriodIncreaseDecrease
109 Defined Benefit Plan, Benefit Obligation, Ending Balance [Concept] Monetary As Of Credit us-gaap:DefinedBenefitPlanBenefitObligation
110 Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] [Abstract]

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*

 us-gaap:DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward
111 Defined Benefit Plan, Fair Value of Plan Assets, Beginning Balance [Concept] Monetary As Of Debit us-gaap:DefinedBenefitPlanFairValueOfPlanAssets
112 Defined Benefit Plan, Fair Value of Plan Assets, Period Increase (Decrease) [Roll Up] [Abstract]

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*

 added:DefinedBenefitPlanFairValuePlanAssetsPeriodIncreaseDecreaseRollUp
113 Defined Benefit Plan, Actual Return on Plan Assets [Roll Up] [Abstract]

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*

 us-gaap:DefinedBenefitPlanActualReturnOnPlanAssetsAbstract
114 Defined Benefit Plan, Actual Return on Plan Assets Still Held [Concept] Monetary For Period Debit us-gaap:DefinedBenefitPlanActualReturnOnPlanAssetsStillHeld
115 Defined Benefit Plan, Actual Return on Plan Assets Sold During Period [Concept] Monetary For Period Debit us-gaap:DefinedBenefitPlanActualReturnOnPlanAssetsSoldDuringPeriod
116 Defined Benefit Plan, Actual Return on Plan Assets, Total [Concept] Monetary For Period Debit us-gaap:DefinedBenefitPlanActualReturnOnPlanAssets
117 Defined Benefit Plan, Foreign Currency Exchange Rate Changes, Plan Assets [Concept] Monetary For Period Debit us-gaap:DefinedBenefitPlanForeignCurrencyExchangeRateChangesPlanAssets
118 Defined Benefit Plan, Contributions by Employer [Concept] Monetary For Period Debit us-gaap:DefinedBenefitPlanContributionsByEmployer
119 Defined Benefit Plan, Contributions by Plan Participants [Concept] Monetary For Period Credit us-gaap:DefinedBenefitPlanContributionsByPlanParticipants
120 Defined Benefit Plan, Benefits Paid [Concept] Monetary For Period Debit us-gaap:DefinedBenefitPlanBenefitsPaid
121 Defined Benefit Plan, Purchases, Sales, and Settlements [Roll Up] [Abstract]

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*

 us-gaap:DefinedBenefitPlanPurchasesSalesAndSettlementsAbstract
122 Defined Benefit Plan, Business Combinations and Acquisitions, Plan Assets [Concept] Monetary For Period Debit us-gaap:DefinedBenefitPlanBusinessCombinationsAndAcquisitionsPlanAssets
123 Defined Benefit Plan, Divestitures, Plan Assets [Concept] Monetary For Period Credit us-gaap:DefinedBenefitPlanDivestituresPlanAssets
124 Defined Benefit Plan, Settlements, Plan Assets [Concept] Monetary For Period Credit us-gaap:DefinedBenefitPlanSettlementsPlanAssets
125 Defined Benefit Plan, Purchases, Sales, and Settlements, Total [Concept] Monetary For Period Debit us-gaap:DefinedBenefitPlanPurchasesSalesAndSettlements
126 Defined Benefit Plan, Transfers Between Measurement Levels [Concept] Monetary For Period Debit us-gaap:DefinedBenefitPlanTransfersBetweenMeasurementLevels
127 Defined Benefit Plan, Fair Value of Plan Assets, Period Increase (Decrease), Total [Concept] Monetary For Period

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 us-gaap:DefinedBenefitPlanFairValueOfPlanAssetsPeriodIncreaseDecrease
128 Defined Benefit Plan, Fair Value of Plan Assets, Ending Balance [Concept] Monetary As Of Debit us-gaap:DefinedBenefitPlanFairValueOfPlanAssets
129 Defined Benefit Plan, Funded Status of Plan [Roll Up] [Abstract]

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*

 us-gaap:DefinedBenefitPlanFundedStatusOfPlanAbstract
130 Defined Benefit Plan, Fair Value of Plan Assets [Concept] Monetary As Of Debit us-gaap:DefinedBenefitPlanFairValueOfPlanAssets
131 Defined Benefit Plan, Benefit Obligation [Concept] Monetary As Of Credit us-gaap:DefinedBenefitPlanBenefitObligation
132 Defined Benefit Plan, Funded Status of Plan, Total [Concept] Monetary As Of Debit us-gaap:DefinedBenefitPlanFundedStatusOfPlan
133 Defined Benefit Plan, Amounts Recognized in Balance Sheet [Roll Up] [Abstract]

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*

 us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheetAbstract
134 Defined Benefit Plan, Assets for Plan Benefits [Roll Up] [Abstract]

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*

 us-gaap:DefinedBenefitPlanAssetsForPlanBenefitsAbstract
135 Defined Benefit Plan, Current Assets [Concept] Monetary As Of Debit us-gaap:DefinedBenefitPlanCurrentAssets
136 Defined Benefit Plan, Assets for Plan Benefits, Noncurrent [Concept] Monetary As Of Debit us-gaap:DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent
137 Defined Benefit Plan, Assets for Plan Benefits, Total [Concept] Monetary As Of Debit us-gaap:DefinedBenefitPlanAssetsForPlanBenefitsCurrentAndNoncurrent
138 Pension and Other Postretirement Defined Benefit Plans, Liabilities [Roll Up] [Abstract]

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*

 us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansNoncurrentLiabilitiesAbstract
139 Pension and Other Postretirement Defined Benefit Plans, Current Liabilities [Concept] Monetary As Of Credit us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities
140 Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent [Concept] Monetary As Of Credit us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
141 Pension and Other Postretirement Defined Benefit Plans, Liabilities, Total [Concept] Monetary As Of Credit us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent
142 Defined Benefit Plan, Amounts Recognized in Balance Sheet, Total [Concept] Monetary As Of Debit us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheet
143 Defined Benefit Plan, before Adoption of FAS 158 Recognition Provisions, Disclosures [Hierarchy] [Abstract]

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 us-gaap:DefinedBenefitPlanBeforeAdoptionOfSFAS158RecognitionProvisionsDisclosuresAbstract
144 Defined Benefit Plan, before Adoption of FAS 158 Recognition Provisions, Net Amount Recognized [Roll Up] [Abstract]

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*

 us-gaap:DefinedBenefitPlanBeforeAdoptionOfSFAS158RecognitionProvisionsNetAmountRecognizedAbstract
145 Defined Benefit Plan, Funded Status of Plan [Concept] Monetary As Of Debit us-gaap:DefinedBenefitPlanFundedStatusOfPlan
146 Defined Benefit Plan, before Adoption of FAS 158 Recognition Provisions, Net Transition Obligations (Assets), Not yet Recognized [Concept] Monetary As Of Credit us-gaap:DefinedBenefitPlanBeforeAdoptionOfSFAS158RecognitionProvisionsNetTransitionObligationsAssetsNotYetRecognized
147 Defined Benefit Plan, before Adoption of FAS 158 Recognition Provisions, Net Prior Service Costs (Credits), Not yet Recognized [Concept] Monetary As Of Credit us-gaap:DefinedBenefitPlanBeforeAdoptionOfSFAS158RecognitionProvisionsNetPriorServiceCostsCreditsNotYetRecognized
148 Defined Benefit Plan, before Adoption of FAS 158 Recognition Provisions, Net (Gains) Losses, Not yet Recognized [Concept] Monetary As Of Debit us-gaap:DefinedBenefitPlanBeforeAdoptionOfSFAS158RecognitionProvisionsNetGainsLossesNotYetRecognized
149 Defined Benefit Plan, before Adoption of FAS 158 Recognition Provisions, Minimum Pension Liability Adjustment [Concept] Monetary As Of Credit us-gaap:DefinedBenefitPlanBeforeAdoptionOfSFAS158RecognitionProvisionsMinimumPensionLiabilityAdjustment
150 Defined Benefit Plan, before Adoption of FAS 158 Recognition Provisions, Net Amount Recognized, Total [Concept] Monetary As Of Debit us-gaap:DefinedBenefitPlanBeforeAdoptionOfSFAS158RecognitionProvisionsNetAmountRecognized
151 Defined Benefit Plan, before Adoption of FAS 158 Recognition Provisions, Amounts Recognized in Balance Sheet [Roll Up] [Abstract]

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*

 us-gaap:DefinedBenefitPlanBeforeAdoptionOfSFAS158RecognitionProvisionsAmountsRecognizedInBalanceSheetAbstract
152 Defined Benefit Plan, before Adoption of FAS 158 Recognition Provisions, Prepaid Benefit Cost [Concept] Monetary As Of Debit us-gaap:DefinedBenefitPlanBeforeAdoptionOfSFAS158RecognitionProvisionsPrepaidBenefitCost
153 Defined Benefit Plan, before Adoption of FAS 158 Recognition Provisions, Accrued Benefit Liability [Concept] Monetary As Of Credit us-gaap:DefinedBenefitPlanBeforeAdoptionOfSFAS158RecognitionProvisionsAccruedBenefitLiability
154 Defined Benefit Plan, before Adoption of FAS 158 Recognition Provisions, Intangible Asset [Concept] Monetary As Of Debit us-gaap:DefinedBenefitPlanBeforeAdoptionOfSFAS158RecognitionProvisionsIntangibleAsset
155 Pension and Other Postretirement Benefit Plans, before Adoption of FAS 158 Recognition Provisions, Accumulated Other Comprehensive Income (Loss) [Concept] Monetary As Of Debit us-gaap:DefinedBenefitPlanBeforeAdoptionOfSFAS158RecognitionProvisionsAccumulatedOtherComprehensiveIncome
156 Defined Benefit Plan, before Adoption of FAS 158 Recognition Provisions, Amounts Recognized in Balance Sheet, Total [Concept] Monetary As Of Debit us-gaap:DefinedBenefitPlanBeforeAdoptionOfSFAS158RecognitionProvisionsAmountsRecognizedInBalanceSheet
157 Defined Benefit Plan, before Adoption of FAS 158 Recognition Provisions, Material Gain (Loss) Not Recognized in Current Fiscal Year [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanBeforeAdoptionOfSFAS158RecognitionProvisionsMaterialGainLossNotRecognizedInCurrentFiscalYear
158 Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Hierarchy] [Abstract]

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*

 us-gaap:DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeAbstract
159 Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, before Tax, [Roll Up] [Abstract]

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*

 us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPeriodIncreaseDecreaseAbstract
160 Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss), Net Gain (Loss), before Tax [Roll Up] [Abstract]

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*

 us-gaap:DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeNetGainLossBeforeTaxAbstract
161 Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, before Tax [Concept] Monetary For Period Debit us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax
162 Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, before Tax [Concept] Monetary For Period Credit us-gaap:OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostBeforeTax
163 Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss), Net Gain (Loss), before Tax, Total [Concept] Monetary For Period Debit us-gaap:DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeNetGainLossBeforeTax
164 Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss), Net Prior Service Cost (Credit), before Tax [Roll Up] [Abstract]

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*

 us-gaap:DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTaxAbstract
165 Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Prior Service Cost (Credit) Arising During Period, before Tax [Concept] Monetary For Period Debit us-gaap:OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostCreditArisingDuringPeriodBeforeTax
166 Other Comprehensive Income (Loss), Amortization, Pension and Other Postretirement Benefit Plans, Net Prior Service Cost (Credit) Recognized in Net Periodic Benefit Cost, before Tax [Concept] Monetary For Period Credit us-gaap:OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostCreditRecognizedInNetPeriodicBenefitCostBeforeTax
167 Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss), Net Prior Service Cost (Credit), before Tax, Total [Concept] Monetary For Period Debit us-gaap:DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax
168 Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Transition Asset (Obligation), Recognized in Net Periodic Benefit Cost, before Tax [Concept] Monetary For Period Credit us-gaap:OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlanNetTransitionAssetObligationRecognizedInNetPeriodicBenefitCostBeforeTax
169 Other Comprehensive Income (Loss), Minimum Pension Liability Net Adjustment, before Tax [Concept] Monetary For Period Debit us-gaap:OtherComprehensiveIncomeMinimumPensionLiabilityNetAdjustmentBeforeTax
170 Other Comprehensive Income (Loss), Finalization of Pension and Non-Pension Postretirement Plan Valuation, before Tax [Concept] Monetary For Period Debit us-gaap:OtherComprehensiveIncomeFinalizationOfPensionAndNonPensionPostretirementPlanValuationBeforeTax
171 Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, before Tax, Total [Concept] Monetary For Period

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 us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPeriodIncreaseDecrease
172 Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), before Tax [Roll Up] [Abstract]

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 us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTaxAbstract
173 Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Gains (Losses), before Tax [Concept] Monetary As Of Credit us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax
174 Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Prior Service Cost (Credit), before Tax [Concept] Monetary As Of Debit us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax
175 Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Transition Assets (Obligations), before Tax [Concept] Monetary As Of Credit us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetTransitionAssetsObligationsBeforeTax
176 Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Minimum Pension Liability, before Tax [Concept] Monetary As Of Debit us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeMinimumPensionLiabilityBeforeTax
177 Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), before Tax, Total [Concept] Monetary As Of Debit us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax
178 Pension and Other Postretirement Benefit Plans, Amounts that Will be Amortized from Accumulated Other Comprehensive Income (Loss) in Next Fiscal Year [Roll Up] [Abstract]

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 us-gaap:DefinedBenefitPlanAmountsThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYearAbstract
179 Defined Benefit Plan, Amortization of Net Gains (Losses) [Concept] Monetary For Period Debit us-gaap:DefinedBenefitPlanAmortizationOfNetGainsLosses
180 Defined Benefit Plan, Amortization of Net Prior Service Cost (Credit) [Concept] Monetary For Period Credit us-gaap:DefinedBenefitPlanAmortizationOfNetPriorServiceCostCredit
181 Defined Benefit Plan, Amortization of Net Transition Asset (Obligation) [Concept] Monetary For Period Debit us-gaap:DefinedBenefitPlanAmortizationOfNetTransitionAssetObligation
182 Pension and Other Postretirement Benefit Plans, Amounts that Will be Amortized from Accumulated Other Comprehensive Income (Loss) in Next Fiscal Year, Total [Concept] Monetary For Period Credit us-gaap:DefinedBenefitPlanAmountsThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYear
183 Defined Benefit Plan, Plans with Benefit Obligations in Excess of Plan Assets [Hierarchy] [Abstract]

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 us-gaap:DefinedBenefitPlanPlansWithBenefitObligationsInExcessOfPlanAssetsAbstract
184 Defined Benefit Plan, Plans with Benefit Obligations in Excess of Plan Assets, Aggregate Benefit Obligation [Concept] Monetary As Of Credit us-gaap:DefinedBenefitPlanPlansWithBenefitObligationsInExcessOfPlanAssetsAggregateBenefitObligation
185 Defined Benefit Plan, Plans with Benefit Obligations in Excess of Plan Assets, Aggregate Fair Value of Plan Assets [Concept] Monetary As Of Debit us-gaap:DefinedBenefitPlanPlansWithBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets
186 Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets [Hierarchy] [Abstract]

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 us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAbstract
187 Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets, Aggregate Projected Benefit Obligation [Concept] Monetary As Of Credit us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation
188 Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets, Aggregate Accumulated Benefit Obligation [Concept] Monetary As Of Credit us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation
189 Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets, Aggregate Fair Value of Plan Assets [Concept] Monetary As Of Debit us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets
190 Defined Benefit Plan, Net Periodic Benefit Cost [Roll Up] [Abstract]

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*

 us-gaap:DefinedBenefitPlanNetPeriodicBenefitCostAbstract
191 Defined Benefit Plan, Service Cost [Concept] Monetary For Period Debit us-gaap:DefinedBenefitPlanServiceCost
192 Defined Benefit Plan, Interest Cost [Concept] Monetary For Period Debit us-gaap:DefinedBenefitPlanInterestCost
193 Defined Benefit Plan, Expected Return on Plan Assets [Concept] Monetary For Period Credit us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets
194 Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments [Roll Up] [Abstract]

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 us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToSettlementsAndCurtailmentsAbstract
195 Defined Benefit Plan, Recognized Net (Gain) Loss Due to Settlements [Concept] Monetary For Period Debit us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToSettlements
196 Defined Benefit Plan, Recognized Net Gain (Loss) Due to Curtailments [Concept] Monetary For Period Credit us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments
197 Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments, Total [Concept] Monetary For Period Debit us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToSettlementsAndCurtailments
198 Defined Benefit Plan, Amortization of Gains (Losses) [Concept] Monetary For Period Credit us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses
199 Defined Benefit Plan, Amortization of Transition Obligations (Assets) [Concept] Monetary For Period Debit us-gaap:DefinedBenefitPlanAmortizationOfTransitionObligationsAssets
200 Defined Benefit Plan, Amortization of Prior Service Cost (Credit) [Concept] Monetary For Period Debit us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit
201 Defined Benefit Plan, Other Costs [Concept] Monetary For Period Debit us-gaap:DefinedBenefitPlanOtherCosts
202 Defined Benefit Plan, Net Periodic Benefit Cost, Total [Concept] Monetary For Period Debit us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost
203 Defined Benefit Plan, Assumptions Used in Calculations [Hierarchy] [Abstract]

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 us-gaap:DefinedBenefitPlanAssumptionsUsedInCalculationsAbstract
204 Defined Benefit Plan, Assumptions Used in Calculations, Narrative Description [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanAssumptionsUsedInCalculationsNarrativeDescription
205 Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Hierarchy] [Abstract]

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 us-gaap:DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingBenefitObligationAbstract
206 Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate [Concept] Perdent As Of

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 us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate
207 Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate Support, Methodology and Source Data [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRateSupportMethodologyAndSourceData
208 Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate Support, Bond Indices [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRateSupportBondIndices
209 Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase [Concept] Perdent As Of

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 us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease
210 Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Hierarchy] [Abstract]

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 us-gaap:DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingNetPeriodicBenefitCostAbstract
211 Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate [Concept] Perdent For Period

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 us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate
212 Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate Support, Methodology and Source Data [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRateSupportMethodologyAndSourceData
213 Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate Support, Bond Indices [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRateSupportBondIndices
214 Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets [Concept] Perdent For Period

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 us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets
215 Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase [Concept] Perdent For Period

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 us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease
216 Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Change Due to Subsequent Interim Measurement [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostChangeDueToSubsequentInterimMeasurement
217 Defined Benefit Plan, Information about Plan Assets [Hierarchy] [Abstract]

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 us-gaap:DefinedBenefitPlanInformationAboutPlanAssetsAbstract
218 Defined Benefit Plan, Investment Policies and Strategies Narrative Description [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanInvestmentPoliciesAndStrategiesNarrativeDescription
219 Defined Benefit Plan, Investment Strategies, Investment Fund Category [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanInvestmentStrategiesInvestmentFundCategory
220 Defined Benefit Plan, Plan Assets at Fair Value, Valuation Techniques and Inputs [Abstract] [Abstract]

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*

 us-gaap:DefinedBenefitPlanPlanAssetsAtFairValueValuationTechniquesAndInputsAbstract
221 Defined Benefit Plan, Plan Assets at Fair Value, Valuation Techniques and Inputs [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanPlanAssetsAtFairValueValuationTechniquesAndInputs
222 Defined Benefit Plan, Plan Assets at Fair Value, Valuation Techniques [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanPlanAssetsAtFairValueValuationTechniques
223 Defined Benefit Plan, Plan Assets at Fair Value, Valuation Inputs [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanPlanAssetsAtFairValueValuationInputs
224 Defined Benefit Plan, Plan Assets at Fair Value, Valuation Techniques and Inputs, Changes [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanPlanAssetsAtFairValueValuationTechniquesAndInputsChanges
225 Defined Benefit Plan, Target Allocation Percentage [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanTargetAllocationPercentage
226 Defined Benefit Plan, Investment Goals [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanInvestmentGoals
227 Defined Benefit Plan, Risk Management Practices [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanRiskManagementPractices
228 Defined Benefit Plan, Significant Concentrations of Risk [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanSignificantConcentrationsOfRisk
229 Defined Benefit Plan, Permitted Investments [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanPermittedInvestments
230 Defined Benefit Plan, Prohibited Investments [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanProhibitedInvestments
231 Defined Benefit Plan, Derivatives Use [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanDerivativesUse
232 Defined Benefit Plan, Diversification [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanDiversification
233 Defined Benefit Plan, Relationship Between Plan Assets and Benefit Obligations [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanRelationshipBetweenPlanAssetsAndBenefitObligations
234 Defined Benefit Plan, Actual Plan Asset Allocations [Roll Up] [Abstract]

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 us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocationsAbstract
235 Defined Benefit Plan, Debt Securities [Concept] Perdent As Of

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 us-gaap:DefinedBenefitPlanDebtSecurities
236 Defined Benefit Plan, Equity Securities [Concept] Perdent As Of

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 us-gaap:DefinedBenefitPlanEquitySecurities
237 Defined Benefit Plan, Real Estate [Concept] Perdent As Of

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 us-gaap:DefinedBenefitPlanRealEstate
238 Defined Benefit Plan, Other Plan Assets [Concept] Perdent As Of

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 us-gaap:DefinedBenefitPlanOtherPlanAssets
239 Defined Benefit Plan, Actual Plan Asset Allocations, Total [Concept] Perdent As Of

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 us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocations
240 Defined Benefit Plan, Assets, Target Allocations [Hierarchy] [Abstract]

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 us-gaap:DefinedBenefitPlanAssetsTargetAllocationsAbstract
241 Defined Benefit Plan, Target Allocation Percentages of Assets, Debt Securities [Hierarchy] [Abstract]

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 us-gaap:DefinedBenefitPlanTargetAllocationPercentagesOfAssetsDebtSecuritiesAbstract
242 Defined Benefit Plan, Target Allocation Percentage of Assets, Debt Securities [Concept] Perdent For Period

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 us-gaap:DefinedBenefitPlanTargetAllocationPercentageOfAssetsDebtSecurities
243 Defined Benefit Plan, Target Allocation Percentage of Assets, Debt Securities, Range Minimum [Concept] Perdent For Period

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 us-gaap:DefinedBenefitPlanTargetAllocationPercentageOfAssetsDebtSecuritiesRangeMinimum
244 Defined Benefit Plan, Target Allocation Percentage of Assets, Debt Securities, Range Maximum [Concept] Perdent For Period

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 us-gaap:DefinedBenefitPlanTargetAllocationPercentageOfAssetsDebtSecuritiesRangeMaximum
245 Defined Benefit Plan, Target Allocation Percentages of Assets, Equity Securities [Hierarchy] [Abstract]

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 us-gaap:DefinedBenefitPlanTargetAllocationPercentagesOfAssetsEquitySecuritiesAbstract
246 Defined Benefit Plan, Target Allocation Percentage of Assets, Equity Securities [Concept] Perdent For Period

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 us-gaap:DefinedBenefitPlanTargetAllocationPercentageOfAssetsEquitySecurities
247 Defined Benefit Plan, Target Allocation Percentage of Assets, Equity Securities, Range Minimum [Concept] Perdent For Period

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 us-gaap:DefinedBenefitPlanTargetAllocationPercentageOfAssetsEquitySecuritiesRangeMinimum
248 Defined Benefit Plan, Target Allocation Percentage of Assets, Equity Securities, Range Maximum [Concept] Perdent For Period

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 us-gaap:DefinedBenefitPlanTargetAllocationPercentageOfAssetsEquitySecuritiesRangeMaximum
249 Defined Benefit Plan, Target Allocation Percentages of Assets, Real Estate [Hierarchy] [Abstract]

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 us-gaap:DefinedBenefitPlanTargetAllocationPercentagesOfAssetsRealEstateAbstract
250 Defined Benefit Plan, Target Allocation Percentage of Assets, Real Estate [Concept] Perdent For Period

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 us-gaap:DefinedBenefitPlanTargetAllocationPercentageOfAssetsRealEstate
251 Defined Benefit Plan, Target Allocation Percentage of Assets, Real Estate, Range Minimum [Concept] Perdent For Period

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 us-gaap:DefinedBenefitPlanTargetAllocationPercentageOfAssetsRealEstateRangeMinimum
252 Defined Benefit Plan, Target Allocation Percentage of Assets, Real Estate, Range Maximum [Concept] Perdent For Period

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 us-gaap:DefinedBenefitPlanTargetAllocationPercentageOfAssetsRealEstateRangeMaximum
253 Defined Benefit Plan, Target Allocation Percentages of Assets, Other [Hierarchy] [Abstract]

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 us-gaap:DefinedBenefitPlanTargetAllocationPercentagesOfAssetsOtherAbstract
254 Defined Benefit Plan, Target Allocation Percentage of Assets, Other [Concept] Perdent For Period

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 us-gaap:DefinedBenefitPlanTargetAllocationPercentageOfAssetsOther
255 Defined Benefit Plan, Target Allocation Percentage of Assets, Other, Range Minimum [Concept] Perdent For Period

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 us-gaap:DefinedBenefitPlanTargetAllocationPercentageOfAssetsOtherRangeMinimum
256 Defined Benefit Plan, Target Allocation Percentage of Assets, Other, Range Maximum [Concept] Perdent For Period

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 us-gaap:DefinedBenefitPlanTargetAllocationPercentageOfAssetsOtherRangeMaximum
257 Defined Benefit Plan, Narrative Description of Basis Used to Determine Overall Expected Long-term Rate-of-Return on Assets Assumption [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanNarrativeDescriptionOfBasisUsedToDetermineOverallExpectedLongTermRateOfReturnOnAssetsAssumption
258 Defined Benefit Plan, Additional Disclosures about Plan Assets [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanAdditionalDisclosuresAboutPlanAssets
259 Defined Benefit Plan, Type of Employer and Related Party Securities Included in Plan Assets [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanTypeOfEmployerAndRelatedPartySecuritiesIncludedInPlanAssets
260 Defined Benefit Plan, Amount of Employer and Related Party Securities Included in Plan Assets [Concept] Monetary As Of Debit us-gaap:DefinedBenefitPlanAmountOfEmployerAndRelatedPartySecuritiesIncludedInPlanAssets
261 Defined Benefit Plan, Number of Shares of Equity Securities Issued by Employer and Related Parties Included in Plan Assets [Concept] Shares As Of

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 us-gaap:DefinedBenefitPlanNumberOfSharesOfEquitySecuritiesIssuedByEmployerAndRelatedPartiesIncludedInPlanAssets
262 Defined Benefit Plan, Estimated Future Benefit Payments [Hierarchy] [Abstract]

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 us-gaap:DefinedBenefitPlanEstimatedFutureBenefitPaymentsAbstract
263 Defined Benefit Plan, Estimated Future Benefit Payments Description [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanEstimatedFutureBenefitPaymentsDescription
264 Defined Benefit Plan, Expected Future Benefit Payments in Year One [Concept] Monetary As Of Debit us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearOne
265 Defined Benefit Plan, Expected Future Benefit Payments in Year Two [Concept] Monetary As Of Debit us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearTwo
266 Defined Benefit Plan, Expected Future Benefit Payments in Year Three [Concept] Monetary As Of Debit us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearThree
267 Defined Benefit Plan, Expected Future Benefit Payments in Year Four [Concept] Monetary As Of Debit us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearFour
268 Defined Benefit Plan, Expected Future Benefit Payments in Year Five [Concept] Monetary As Of Debit us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearFive
269 Defined Benefit Plan, Expected Future Benefit Payments in Five Fiscal Years Thereafter [Concept] Monetary As Of Debit us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsInFiveFiscalYearsThereafter
270 Defined Benefit Plan, Estimated Future Employer Contributions in Current Fiscal Year [Hierarchy] [Abstract]

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 added:DefinedBenefitPlanEstimatedFutureEmployerContributionsInCurrentFiscalYearHierarchy
271 Defined Benefit Plan, Estimated Future Employer Contributions in Current Fiscal Year [Concept] Monetary As Of Debit us-gaap:DefinedBenefitPlanEstimatedFutureEmployerContributionsInCurrentFiscalYear
272 Defined Benefit Plan, Estimated Future Employer Contributions in Current Fiscal Year, Description [Concept] Text/String For Period

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273 Defined Benefit Plan, Assumed Health Care Cost Trend Rates [Hierarchy] [Abstract]

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 us-gaap:DefinedBenefitPlanAssumedHealthCareCostTrendRatesAbstract
274 Defined Benefit Plan, Health Care Cost Trend Rate Assumed for Next Fiscal Year [Concept] Perdent For Period

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 us-gaap:DefinedBenefitPlanHealthCareCostTrendRateAssumedForNextFiscalYear
275 Defined Benefit Plan, Description of Direction and Pattern of Change for Assumed Health Care Cost Trend Rate [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanDescriptionOfDirectionAndPatternOfChangeForAssumedHealthCareCostTrendRate
276 Defined Benefit Plan, Ultimate Health Care Cost Trend Rate [Concept] Perdent For Period

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 us-gaap:DefinedBenefitPlanUltimateHealthCareCostTrendRate
277 Defined Benefit Plan, Year that Rate Reaches Ultimate Trend Rate [Concept] Year As Of

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 us-gaap:DefinedBenefitPlanYearThatRateReachesUltimateTrendRate
278 Defined Benefit Plan, Effect of One-Percentage Point Change in Assumed Health Care Cost Trend Rates [Hierarchy] [Abstract]

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 us-gaap:DefinedBenefitPlanEffectOfOnePercentagePointChangeInAssumedHealthCareCostTrendRatesAbstract
279 Defined Benefit Plan, Effect of One Percentage Point Increase on Service and Interest Cost Components [Concept] Monetary For Period Debit us-gaap:DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents
280 Defined Benefit Plan, Effect of One Percentage Point Decrease on Service and Interest Cost Components [Concept] Monetary For Period Debit us-gaap:DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents
281 Defined Benefit Plan, Effect of One Percentage Point Increase on Accumulated Postretirement Benefit Obligation [Concept] Monetary For Period Credit us-gaap:DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation
282 Defined Benefit Plan, Effect of One Percentage Point Decrease on Accumulated Postretirement Benefit Obligation [Concept] Monetary For Period Credit us-gaap:DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation
283 Defined Benefit Plan, Special or Contractual Termination Benefits During Period [Hierarchy] [Abstract]

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 us-gaap:DefinedBenefitPlanSpecialOrContractualTerminationBenefitsDuringPeriodAbstract
284 Defined Benefit Plan, Description of Nature of Event Resulting in Special or Contractual Termination Benefits Recognized During Period [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanDescriptionOfNatureOfEventResultingInSpecialOrContractualTerminationBenefitsRecognizedDuringPeriod
285 Defined Benefit Plan, Cost of Providing Special or Contractual Termination Benefits Recognized During Period [Concept] Monetary For Period Debit us-gaap:DefinedBenefitPlanCostOfProvidingSpecialOrContractualTerminationBenefitRecognizedDuringPeriod
286 Defined Benefit Plan, Plan Amendment [Hierarchy] [Abstract]

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 us-gaap:DefinedBenefitPlanPlanAmendmentAbstract
287 Defined Benefit Plan, Description of Plan Amendment [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanDescriptionOfPlanAmendment
288 Defined Benefit Plan, Effect of Plan Amendment on Accumulated Benefit Obligation [Concept] Monetary As Of Credit us-gaap:DefinedBenefitPlanEffectOfPlanAmendmentOnAccumulatedBenefitObligation
289 Defined Benefit Plan, Effect of Plan Amendment on Net Periodic Benefit Cost [Concept] Monetary As Of Credit us-gaap:DefinedBenefitPlanEffectOfPlanAmendmentOnNetPeriodicBenefitCost
290 Defined Benefit Plan, Settlements and Curtailments [Hierarchy] [Abstract]

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 us-gaap:DefinedBenefitPlanSettlementsAndCurtailmentsAbstract
291 Defined Benefit Plan, Description of Settlements and Curtailments [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanDescriptionOfSettlementsAndCurtailments
292 Defined Benefit Plan, Effect of Settlements and Curtailments on Accumulated Benefit Obligation [Concept] Monetary As Of Credit us-gaap:DefinedBenefitPlanEffectOfSettlementsAndCurtailmentsOnAccumulatedBenefitObligation
293 Defined Benefit Plan, Government's Rights to Plan Assets in Event of Plan Termination [Concept] Text/String For Period

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 us-gaap:DefinedBenefitPlanGovernmentsRightsToPlanAssetsInEventOfPlanTermination
294 Defined Benefit Plan, Government's Rights to Plan Assets in Event of Plan Termination, Amount [Concept] Monetary As Of Debit us-gaap:DefinedBenefitPlanGovernmentsRightsToPlanAssetsInEventOfPlanTerminationAmount