Annual report pursuant to Section 13 and 15(d)

Quarterly Data (unaudited) Quarterly Data (unaudited) (Details)

v2.4.1.9
Quarterly Data (unaudited) Quarterly Data (unaudited) (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified
3 Months Ended 12 Months Ended
Dec. 31, 2014
Sep. 27, 2014
Jun. 28, 2014
Mar. 29, 2014
Dec. 31, 2013
Sep. 28, 2013
Jun. 29, 2013
Mar. 30, 2013
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Quarterly Financial Information Disclosure [Abstract]                      
Net sales $ 938.6us-gaap_SalesRevenueNet $ 932.1us-gaap_SalesRevenueNet $ 1,073.1us-gaap_SalesRevenueNet $ 894.9us-gaap_SalesRevenueNet $ 826.8us-gaap_SalesRevenueNet $ 824.4us-gaap_SalesRevenueNet $ 1,033.4us-gaap_SalesRevenueNet $ 915.1us-gaap_SalesRevenueNet $ 3,838.7us-gaap_SalesRevenueNet $ 3,599.7us-gaap_SalesRevenueNet $ 3,416.8us-gaap_SalesRevenueNet
Gross margin 230.0us-gaap_GrossProfit [1] 259.2us-gaap_GrossProfit [1] 304.3us-gaap_GrossProfit [1] 243.3us-gaap_GrossProfit [1] 194.8us-gaap_GrossProfit [1] 227.6us-gaap_GrossProfit [1] 289.8us-gaap_GrossProfit [1] 237.1us-gaap_GrossProfit [1] 1,036.8us-gaap_GrossProfit [1] 949.3us-gaap_GrossProfit [1]  
Pension settlement charge - lump sum payout 27.9us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1 0us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1 0us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1 0us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1         27.9us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1 0us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1 0us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1
Restructuring, exit and impairment charges 0.2bc_RestructuringExitAndImpairmentCharges 0.9bc_RestructuringExitAndImpairmentCharges 3.1bc_RestructuringExitAndImpairmentCharges 0bc_RestructuringExitAndImpairmentCharges 5.8bc_RestructuringExitAndImpairmentCharges 2.6bc_RestructuringExitAndImpairmentCharges 2.5bc_RestructuringExitAndImpairmentCharges 5.6bc_RestructuringExitAndImpairmentCharges 4.2bc_RestructuringExitAndImpairmentCharges 16.5bc_RestructuringExitAndImpairmentCharges 25.4bc_RestructuringExitAndImpairmentCharges
Impairment of equity method investment (20.2)us-gaap_EquityMethodInvestmentOtherThanTemporaryImpairment 0us-gaap_EquityMethodInvestmentOtherThanTemporaryImpairment 0us-gaap_EquityMethodInvestmentOtherThanTemporaryImpairment 0us-gaap_EquityMethodInvestmentOtherThanTemporaryImpairment         (20.2)us-gaap_EquityMethodInvestmentOtherThanTemporaryImpairment 0us-gaap_EquityMethodInvestmentOtherThanTemporaryImpairment 0us-gaap_EquityMethodInvestmentOtherThanTemporaryImpairment
Loss on early extinguishment of debt (0.1)us-gaap_GainsLossesOnExtinguishmentOfDebt 0us-gaap_GainsLossesOnExtinguishmentOfDebt 0us-gaap_GainsLossesOnExtinguishmentOfDebt 0us-gaap_GainsLossesOnExtinguishmentOfDebt (0.1)us-gaap_GainsLossesOnExtinguishmentOfDebt (0.3)us-gaap_GainsLossesOnExtinguishmentOfDebt (32.3)us-gaap_GainsLossesOnExtinguishmentOfDebt (0.1)us-gaap_GainsLossesOnExtinguishmentOfDebt (0.1)us-gaap_GainsLossesOnExtinguishmentOfDebt (32.8)us-gaap_GainsLossesOnExtinguishmentOfDebt (16.3)us-gaap_GainsLossesOnExtinguishmentOfDebt
Net earnings (loss) from continuing operations (2.3)us-gaap_IncomeLossFromContinuingOperations 61.0us-gaap_IncomeLossFromContinuingOperations 87.1us-gaap_IncomeLossFromContinuingOperations 49.1us-gaap_IncomeLossFromContinuingOperations 578.7us-gaap_IncomeLossFromContinuingOperations 57.2us-gaap_IncomeLossFromContinuingOperations 78.3us-gaap_IncomeLossFromContinuingOperations 42.6us-gaap_IncomeLossFromContinuingOperations 194.9us-gaap_IncomeLossFromContinuingOperations 756.8us-gaap_IncomeLossFromContinuingOperations 124.6us-gaap_IncomeLossFromContinuingOperations
Net earnings (loss) from discontinued operations, net of tax (2.0)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax 43.4us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax 1.5us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax 7.9us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax 2.5us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax 0.6us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax 2.1us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax 7.2us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax 50.8us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax 12.4us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax (74.6)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax
Net earnings (loss) $ (4.3)us-gaap_NetIncomeLoss $ 104.4us-gaap_NetIncomeLoss $ 88.6us-gaap_NetIncomeLoss $ 57.0us-gaap_NetIncomeLoss $ 581.2us-gaap_NetIncomeLoss $ 57.8us-gaap_NetIncomeLoss $ 80.4us-gaap_NetIncomeLoss $ 49.8us-gaap_NetIncomeLoss $ 245.7us-gaap_NetIncomeLoss $ 769.2us-gaap_NetIncomeLoss $ 50.0us-gaap_NetIncomeLoss
Basic earnings (loss) per common share                      
Net earnings (loss) from continuing operations (in dollars per share) $ (0.03)us-gaap_IncomeLossFromContinuingOperationsPerBasicShare $ 0.65us-gaap_IncomeLossFromContinuingOperationsPerBasicShare $ 0.93us-gaap_IncomeLossFromContinuingOperationsPerBasicShare $ 0.53us-gaap_IncomeLossFromContinuingOperationsPerBasicShare $ 6.30us-gaap_IncomeLossFromContinuingOperationsPerBasicShare $ 0.63us-gaap_IncomeLossFromContinuingOperationsPerBasicShare $ 0.86us-gaap_IncomeLossFromContinuingOperationsPerBasicShare $ 0.47us-gaap_IncomeLossFromContinuingOperationsPerBasicShare $ 2.08us-gaap_IncomeLossFromContinuingOperationsPerBasicShare $ 8.30us-gaap_IncomeLossFromContinuingOperationsPerBasicShare $ 1.39us-gaap_IncomeLossFromContinuingOperationsPerBasicShare
Net earnings (loss) from discontinued operations (in dollars per share) $ (0.02)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare $ 0.46us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare $ 0.02us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare $ 0.08us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare $ 0.03us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare $ 0.00us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare $ 0.02us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare $ 0.08us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare $ 0.55us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare $ 0.13us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare $ (0.83)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare
Net earnings (in dollars per share) $ (0.05)us-gaap_EarningsPerShareBasic $ 1.11us-gaap_EarningsPerShareBasic $ 0.95us-gaap_EarningsPerShareBasic $ 0.61us-gaap_EarningsPerShareBasic $ 6.33us-gaap_EarningsPerShareBasic $ 0.63us-gaap_EarningsPerShareBasic $ 0.88us-gaap_EarningsPerShareBasic $ 0.55us-gaap_EarningsPerShareBasic $ 2.63us-gaap_EarningsPerShareBasic $ 8.43us-gaap_EarningsPerShareBasic $ 0.56us-gaap_EarningsPerShareBasic
Diluted earnings (loss) per common share                      
Net earnings (loss) from continuing operations (in dollars per share) $ (0.03)us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare $ 0.64us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare $ 0.92us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare $ 0.52us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare $ 6.13us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare $ 0.61us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare $ 0.84us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare $ 0.46us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare $ 2.05us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare $ 8.07us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare $ 1.35us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare
Net earnings (loss) from discontinued operations (in dollars per share) $ (0.02)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare $ 0.46us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare $ 0.01us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare $ 0.08us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare $ 0.03us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare $ 0.00us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare $ 0.02us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare $ 0.07us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare $ 0.53us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare $ 0.13us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare $ (0.81)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
Net earnings (in dollars per share) $ (0.05)us-gaap_EarningsPerShareDiluted $ 1.10us-gaap_EarningsPerShareDiluted $ 0.93us-gaap_EarningsPerShareDiluted $ 0.60us-gaap_EarningsPerShareDiluted $ 6.16us-gaap_EarningsPerShareDiluted $ 0.61us-gaap_EarningsPerShareDiluted $ 0.86us-gaap_EarningsPerShareDiluted $ 0.53us-gaap_EarningsPerShareDiluted $ 2.58us-gaap_EarningsPerShareDiluted $ 8.20us-gaap_EarningsPerShareDiluted $ 0.54us-gaap_EarningsPerShareDiluted
Dividends declared $ 0.125us-gaap_CommonStockDividendsPerShareDeclared $ 0.125us-gaap_CommonStockDividendsPerShareDeclared $ 0.10us-gaap_CommonStockDividendsPerShareDeclared $ 0.10us-gaap_CommonStockDividendsPerShareDeclared $ 0.10us-gaap_CommonStockDividendsPerShareDeclared $ 0.00us-gaap_CommonStockDividendsPerShareDeclared $ 0.00us-gaap_CommonStockDividendsPerShareDeclared $ 0.00us-gaap_CommonStockDividendsPerShareDeclared $ 0.45us-gaap_CommonStockDividendsPerShareDeclared $ 0.10us-gaap_CommonStockDividendsPerShareDeclared $ 0.05us-gaap_CommonStockDividendsPerShareDeclared
Common Stock Price [Abstract]                      
High $ 51.94bc_StockMarketPriceHigh $ 44.90bc_StockMarketPriceHigh $ 46.53bc_StockMarketPriceHigh $ 46.74bc_StockMarketPriceHigh $ 46.48bc_StockMarketPriceHigh $ 40.76bc_StockMarketPriceHigh $ 35.40bc_StockMarketPriceHigh $ 37.23bc_StockMarketPriceHigh $ 51.94bc_StockMarketPriceHigh $ 46.48bc_StockMarketPriceHigh  
Low $ 39.29bc_StockMarketPriceLow $ 39.55bc_StockMarketPriceLow $ 38.95bc_StockMarketPriceLow $ 40.13bc_StockMarketPriceLow $ 39.09bc_StockMarketPriceLow $ 32.36bc_StockMarketPriceLow $ 30.42bc_StockMarketPriceLow $ 30.92bc_StockMarketPriceLow $ 38.95bc_StockMarketPriceLow $ 30.42bc_StockMarketPriceLow  
[1] Gross margin is defined as Net sales less Cost of sales as presented in the Consolidated Statements of Operations.