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Benefit Plans and Other Postretirement Benefits (Details 3) (U.S. plans, Pension Benefits)
Dec. 31, 2014
Equity securities  
Defined Benefit Plan Disclosure  
Plan asset allocations, assumptions (as a percent) 60.00%aph_DefinedBenefitPlanWeightedAverageAssetAllocationsAssumption
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_EquitySecuritiesMember
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember
Expected long-term return on assets, assumptions (as a percent) 9.00%aph_DefinedBenefitPlanExpectedLongTermRateOfReturnOnAssetsAssumption
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_EquitySecuritiesMember
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember
Fixed income securities  
Defined Benefit Plan Disclosure  
Plan asset allocations, assumptions (as a percent) 40.00%aph_DefinedBenefitPlanWeightedAverageAssetAllocationsAssumption
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_FixedIncomeFundsMember
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember
Expected long-term return on assets, assumptions (as a percent) 7.00%aph_DefinedBenefitPlanExpectedLongTermRateOfReturnOnAssetsAssumption
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_FixedIncomeFundsMember
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember