XML 94 R80.htm IDEA: XBRL DOCUMENT v2.4.1.9
Retirement Benefits (Plan Target and Actual Asset Allocation) (Details)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Equity securities | All Pension Benefit Plans    
Defined Benefit Plan Disclosure [Line Items]    
Target Mix: 41.00%us-gaap_DefinedBenefitPlanTargetPlanAssetAllocations
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= us-gaap_EquitySecuritiesMember
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55.00%us-gaap_DefinedBenefitPlanTargetPlanAssetAllocations
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= us-gaap_EquitySecuritiesMember
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_PensionPlansDefinedBenefitMember
Actual Mix: 43.00%us-gaap_DefinedBenefitPlanWeightedAverageAssetAllocations
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= us-gaap_EquitySecuritiesMember
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
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55.00%us-gaap_DefinedBenefitPlanWeightedAverageAssetAllocations
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/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_PensionPlansDefinedBenefitMember
Equity securities | Postretirement Health Care Benefits Plan    
Defined Benefit Plan Disclosure [Line Items]    
Target Mix: 37.00%us-gaap_DefinedBenefitPlanTargetPlanAssetAllocations
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= us-gaap_EquitySecuritiesMember
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
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57.00%us-gaap_DefinedBenefitPlanTargetPlanAssetAllocations
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= us-gaap_EquitySecuritiesMember
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember
Actual Mix: 20.00%us-gaap_DefinedBenefitPlanWeightedAverageAssetAllocations
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= us-gaap_EquitySecuritiesMember
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
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58.00%us-gaap_DefinedBenefitPlanWeightedAverageAssetAllocations
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= us-gaap_EquitySecuritiesMember
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember
Fixed income securities | All Pension Benefit Plans    
Defined Benefit Plan Disclosure [Line Items]    
Target Mix: 44.00%us-gaap_DefinedBenefitPlanTargetPlanAssetAllocations
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= us-gaap_FixedIncomeSecuritiesMember
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
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43.00%us-gaap_DefinedBenefitPlanTargetPlanAssetAllocations
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/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
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Actual Mix: 44.00%us-gaap_DefinedBenefitPlanWeightedAverageAssetAllocations
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_FixedIncomeSecuritiesMember
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
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42.00%us-gaap_DefinedBenefitPlanWeightedAverageAssetAllocations
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= us-gaap_FixedIncomeSecuritiesMember
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_PensionPlansDefinedBenefitMember
Fixed income securities | Postretirement Health Care Benefits Plan    
Defined Benefit Plan Disclosure [Line Items]    
Target Mix: 42.00%us-gaap_DefinedBenefitPlanTargetPlanAssetAllocations
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_FixedIncomeSecuritiesMember
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
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42.00%us-gaap_DefinedBenefitPlanTargetPlanAssetAllocations
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/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
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Actual Mix: 20.00%us-gaap_DefinedBenefitPlanWeightedAverageAssetAllocations
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= us-gaap_FixedIncomeSecuritiesMember
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
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40.00%us-gaap_DefinedBenefitPlanWeightedAverageAssetAllocations
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/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
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Cash and other investments | All Pension Benefit Plans    
Defined Benefit Plan Disclosure [Line Items]    
Target Mix: 15.00%us-gaap_DefinedBenefitPlanTargetPlanAssetAllocations
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
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/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
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2.00%us-gaap_DefinedBenefitPlanTargetPlanAssetAllocations
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= us-gaap_CashAndCashEquivalentsMember
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
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Actual Mix: 13.00%us-gaap_DefinedBenefitPlanWeightedAverageAssetAllocations
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/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
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3.00%us-gaap_DefinedBenefitPlanWeightedAverageAssetAllocations
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Cash and other investments | Postretirement Health Care Benefits Plan    
Defined Benefit Plan Disclosure [Line Items]    
Target Mix: 21.00%us-gaap_DefinedBenefitPlanTargetPlanAssetAllocations
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
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/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
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1.00%us-gaap_DefinedBenefitPlanTargetPlanAssetAllocations
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/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
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Actual Mix: 60.00%us-gaap_DefinedBenefitPlanWeightedAverageAssetAllocations
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/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
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2.00%us-gaap_DefinedBenefitPlanWeightedAverageAssetAllocations
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/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
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