Consolidated Statements of Income (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended	6 Months Ended
Dec. 27, 2014	Dec. 28, 2013	Dec. 27, 2014	Dec. 28, 2013
Net sales	$ 1,071.7us-gaap_SalesRevenueNet	$ 979.0us-gaap_SalesRevenueNet	$ 2,023.1us-gaap_SalesRevenueNet	$ 1,912.4us-gaap_SalesRevenueNet
Cost of sales	687.9us-gaap_CostOfGoodsAndServicesSold	618.3us-gaap_CostOfGoodsAndServicesSold	1,317.6us-gaap_CostOfGoodsAndServicesSold	1,195.4us-gaap_CostOfGoodsAndServicesSold
Gross profit	383.8us-gaap_GrossProfit	360.7us-gaap_GrossProfit	705.5us-gaap_GrossProfit	717.0us-gaap_GrossProfit
Operating expenses
Distribution	14.8us-gaap_ProductionAndDistributionCosts	14.0us-gaap_ProductionAndDistributionCosts	29.2us-gaap_ProductionAndDistributionCosts	27.2us-gaap_ProductionAndDistributionCosts
Research and Development	53.2us-gaap_ResearchAndDevelopmentExpense	37.5us-gaap_ResearchAndDevelopmentExpense	89.8us-gaap_ResearchAndDevelopmentExpense	69.8us-gaap_ResearchAndDevelopmentExpense
Selling	44.9us-gaap_SellingAndMarketingExpense	47.3us-gaap_SellingAndMarketingExpense	95.3us-gaap_SellingAndMarketingExpense	97.6us-gaap_SellingAndMarketingExpense
Administration	84.1us-gaap_GeneralAndAdministrativeExpense	154.4us-gaap_GeneralAndAdministrativeExpense	165.5us-gaap_GeneralAndAdministrativeExpense	233.2us-gaap_GeneralAndAdministrativeExpense
Write-off of in-process research and development	0	6.0	0	6.0
Restructuring	2.4us-gaap_RestructuringCharges	14.9us-gaap_RestructuringCharges	4.2us-gaap_RestructuringCharges	17.0us-gaap_RestructuringCharges
Total operating expenses	199.4us-gaap_OperatingExpenses	274.1us-gaap_OperatingExpenses	384.0us-gaap_OperatingExpenses	450.8us-gaap_OperatingExpenses
Operating Income	184.4us-gaap_OperatingIncomeLoss	86.6us-gaap_OperatingIncomeLoss	321.5us-gaap_OperatingIncomeLoss	266.2us-gaap_OperatingIncomeLoss
Interest expense, net	30.8us-gaap_InterestIncomeExpenseNet	29.7us-gaap_InterestIncomeExpenseNet	56.7us-gaap_InterestIncomeExpenseNet	51.1us-gaap_InterestIncomeExpenseNet
Other expense, net	59.3us-gaap_OtherNonoperatingIncomeExpense	4.1us-gaap_OtherNonoperatingIncomeExpense	61.9us-gaap_OtherNonoperatingIncomeExpense	5.1us-gaap_OtherNonoperatingIncomeExpense
Loss on extinguishment of debt	9.6	165.8	9.6	165.8
Income (loss) before income taxes	84.7	(113.0)	193.3	44.2
Income tax expense (benefit)	14.5us-gaap_IncomeTaxExpenseBenefit	(27.0)us-gaap_IncomeTaxExpenseBenefit	26.8us-gaap_IncomeTaxExpenseBenefit	18.9us-gaap_IncomeTaxExpenseBenefit
Net income (loss)	$ 70.2us-gaap_NetIncomeLoss	$ (86.0)us-gaap_NetIncomeLoss	$ 166.5us-gaap_NetIncomeLoss	$ 25.3us-gaap_NetIncomeLoss
Earnings Per Share [Abstract]
Basic earnings (loss) per share	$ 0.52us-gaap_EarningsPerShareBasic	$ (0.87)us-gaap_EarningsPerShareBasic	$ 1.23us-gaap_EarningsPerShareBasic	$ 0.26us-gaap_EarningsPerShareBasic
Diluted earnings (loss) per share	$ 0.51us-gaap_EarningsPerShareDiluted	$ (0.87)us-gaap_EarningsPerShareDiluted	$ 1.23us-gaap_EarningsPerShareDiluted	$ 0.26us-gaap_EarningsPerShareDiluted
Weighted average shares outstanding
Basic	136.3	98.7	135.1	96.4
Diluted	136.8	98.7	135.6	96.9
Dividends declared per share	$ 0.105	$ 0.09	$ 0.21	$ 0.18

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