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Reportable Business Segments (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended
Mar. 31, 2015
segment
Mar. 31, 2014
Reportable Business Segments    
Number of reportable business segments 2us-gaap_NumberOfReportableSegments  
Segment reporting information    
Net sales $ 1,327.1us-gaap_SalesRevenueGoodsNet $ 1,246.1us-gaap_SalesRevenueGoodsNet
Segment operating income 260.2us-gaap_OperatingIncomeLoss 232.1us-gaap_OperatingIncomeLoss
Interconnect Products and Assemblies    
Segment reporting information    
Segment operating income 271.0us-gaap_OperatingIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= aph_InterconnectProductsAndAssembliesMember		 242.8us-gaap_OperatingIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= aph_InterconnectProductsAndAssembliesMember
Cable Products and Solutions    
Segment reporting information    
Segment operating income 10.2us-gaap_OperatingIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= aph_CableProductsAndSolutionsMember		 10.6us-gaap_OperatingIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= aph_CableProductsAndSolutionsMember
Operating Segment    
Segment reporting information    
Net sales 1,327.1us-gaap_SalesRevenueGoodsNet
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember		 1,246.1us-gaap_SalesRevenueGoodsNet
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
Segment operating income 281.2us-gaap_OperatingIncomeLoss
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember		 253.4us-gaap_OperatingIncomeLoss
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
Operating Segment | Interconnect Products and Assemblies    
Segment reporting information    
Net sales 1,242.7us-gaap_SalesRevenueGoodsNet
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= aph_InterconnectProductsAndAssembliesMember		 1,159.1us-gaap_SalesRevenueGoodsNet
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= aph_InterconnectProductsAndAssembliesMember
Operating Segment | Cable Products and Solutions    
Segment reporting information    
Net sales 84.4us-gaap_SalesRevenueGoodsNet
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= aph_CableProductsAndSolutionsMember		 87.0us-gaap_SalesRevenueGoodsNet
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= aph_CableProductsAndSolutionsMember
Intersegment    
Segment reporting information    
Net sales 7.4us-gaap_SalesRevenueGoodsNet
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember		 6.4us-gaap_SalesRevenueGoodsNet
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember
Intersegment | Interconnect Products and Assemblies    
Segment reporting information    
Net sales 2.3us-gaap_SalesRevenueGoodsNet
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember
/ us-gaap_StatementBusinessSegmentsAxis
= aph_InterconnectProductsAndAssembliesMember		 1.1us-gaap_SalesRevenueGoodsNet
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember
/ us-gaap_StatementBusinessSegmentsAxis
= aph_InterconnectProductsAndAssembliesMember
Intersegment | Cable Products and Solutions    
Segment reporting information    
Net sales $ 5.1us-gaap_SalesRevenueGoodsNet
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember
/ us-gaap_StatementBusinessSegmentsAxis
= aph_CableProductsAndSolutionsMember		 $ 5.3us-gaap_SalesRevenueGoodsNet
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember
/ us-gaap_StatementBusinessSegmentsAxis
= aph_CableProductsAndSolutionsMember