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Segment Information (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Segment Reporting Information [Line Items]    
Net sales $ 809.7us-gaap_SalesRevenueNet $ 759.5us-gaap_SalesRevenueNet
Operating Income 105.0us-gaap_OperatingIncomeLoss 104.8us-gaap_OperatingIncomeLoss
Operating Income as a % of Net Sales 13.00%hubb_OperatingIncomePercentageOfSales 13.80%hubb_OperatingIncomePercentageOfSales
Electrical    
Segment Reporting Information [Line Items]    
Net sales 569.7us-gaap_SalesRevenueNet
/ us-gaap_StatementBusinessSegmentsAxis
= hubb_ElectricalMember		 538.8us-gaap_SalesRevenueNet
/ us-gaap_StatementBusinessSegmentsAxis
= hubb_ElectricalMember
Operating Income 63.4us-gaap_OperatingIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= hubb_ElectricalMember		 68.1us-gaap_OperatingIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= hubb_ElectricalMember
Operating Income as a % of Net Sales 11.10%hubb_OperatingIncomePercentageOfSales
/ us-gaap_StatementBusinessSegmentsAxis
= hubb_ElectricalMember		 12.60%hubb_OperatingIncomePercentageOfSales
/ us-gaap_StatementBusinessSegmentsAxis
= hubb_ElectricalMember
Power    
Segment Reporting Information [Line Items]    
Net sales 240.0us-gaap_SalesRevenueNet
/ us-gaap_StatementBusinessSegmentsAxis
= hubb_PowerMember		 220.7us-gaap_SalesRevenueNet
/ us-gaap_StatementBusinessSegmentsAxis
= hubb_PowerMember
Operating Income $ 41.6us-gaap_OperatingIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= hubb_PowerMember		 $ 36.7us-gaap_OperatingIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= hubb_PowerMember
Operating Income as a % of Net Sales 17.30%hubb_OperatingIncomePercentageOfSales
/ us-gaap_StatementBusinessSegmentsAxis
= hubb_PowerMember		 16.60%hubb_OperatingIncomePercentageOfSales
/ us-gaap_StatementBusinessSegmentsAxis
= hubb_PowerMember