XML 114 R102.htm IDEA: XBRL DOCUMENT v2.4.1.9
Pension and Other Postretirement Benefit Plans - Recurring Fair Value Measures (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Pension [Member]      
Recurring Fair Value Measures [Line Items]      
Fair Value of Assets $ 544.2us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_PensionPlansDefinedBenefitMember		 $ 501.6us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_PensionPlansDefinedBenefitMember		 $ 460.1us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
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Pension [Member] | Level 1 [Member]      
Recurring Fair Value Measures [Line Items]      
Fair Value of Assets 120.4us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
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Pension [Member] | Level 2 [Member]      
Recurring Fair Value Measures [Line Items]      
Fair Value of Assets 351.6us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
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Pension [Member] | Level 3 [Member]      
Recurring Fair Value Measures [Line Items]      
Fair Value of Assets 72.2us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
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Pension [Member] | U.S. Large-cap [Member]      
Recurring Fair Value Measures [Line Items]      
Fair Value of Assets 88.5us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
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Recurring Fair Value Measures [Line Items]      
Fair Value of Assets 32.1us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
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Pension [Member] | U.S. Large-cap [Member] | Level 2 [Member]      
Recurring Fair Value Measures [Line Items]      
Fair Value of Assets 56.4us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
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Pension [Member] | U.S. Large-cap [Member] | Level 3 [Member]      
Recurring Fair Value Measures [Line Items]      
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Pension [Member] | U.S. Mid-cap Growth [Member]      
Recurring Fair Value Measures [Line Items]      
Fair Value of Assets 37.5us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
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Pension [Member] | U.S. Mid-cap Growth [Member] | Level 1 [Member]      
Recurring Fair Value Measures [Line Items]      
Fair Value of Assets 13.6us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
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Pension [Member] | U.S. Mid-cap Growth [Member] | Level 2 [Member]      
Recurring Fair Value Measures [Line Items]      
Fair Value of Assets 23.9us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
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Pension [Member] | U.S. Mid-cap Growth [Member] | Level 3 [Member]      
Recurring Fair Value Measures [Line Items]      
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Pension [Member] | U.S. Small-cap [Member]      
Recurring Fair Value Measures [Line Items]      
Fair Value of Assets 38.3us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
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Pension [Member] | U.S. Small-cap [Member] | Level 1 [Member]      
Recurring Fair Value Measures [Line Items]      
Fair Value of Assets 13.9us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
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Pension [Member] | U.S. Small-cap [Member] | Level 2 [Member]      
Recurring Fair Value Measures [Line Items]      
Fair Value of Assets 24.4us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
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Pension [Member] | U.S. Small-cap [Member] | Level 3 [Member]      
Recurring Fair Value Measures [Line Items]      
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Pension [Member] | International [Member]      
Recurring Fair Value Measures [Line Items]      
Fair Value of Assets 92.0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
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Pension [Member] | International [Member] | Level 1 [Member]      
Recurring Fair Value Measures [Line Items]      
Fair Value of Assets 46.1us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
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Pension [Member] | International [Member] | Level 2 [Member]      
Recurring Fair Value Measures [Line Items]      
Fair Value of Assets 45.9us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
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Pension [Member] | International [Member] | Level 3 [Member]      
Recurring Fair Value Measures [Line Items]      
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Pension [Member] | Debt Securities - Mutual Funds [Member]      
Recurring Fair Value Measures [Line Items]      
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Recurring Fair Value Measures [Line Items]      
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Recurring Fair Value Measures [Line Items]      
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Recurring Fair Value Measures [Line Items]      
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Recurring Fair Value Measures [Line Items]      
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Recurring Fair Value Measures [Line Items]      
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[1] The underlying investments classified under U.S. Equity Securities consist of money market funds (Level 1) and actively-managed funds (Level 2), which are combined with futures, and settle daily, to achieve the returns of the U.S. Equity Securities Large-cap, Mid-cap Growth, and Small-cap funds. Our exposure with respect to these investments includes both the futures and the underlying investments.
[2] The underlying investments classified under U.S. Equity Securities consist of mutual funds (Level 1).