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Operations and Summary of Significant Accounting Policies - Stock Compensation Allocation (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Allocated Share-based Compensation Expense $ (10.6)us-gaap_AllocatedShareBasedCompensationExpense $ 34.9us-gaap_AllocatedShareBasedCompensationExpense $ 37.0us-gaap_AllocatedShareBasedCompensationExpense
Cost of Goods Sold      
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Allocated Share-based Compensation Expense (0.9)us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_CostOfSalesMember
2.3us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_CostOfSalesMember
2.4us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_CostOfSalesMember
Selling, General and Administrative Expenses      
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Allocated Share-based Compensation Expense $ (9.7)us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_SellingGeneralAndAdministrativeExpensesMember
$ 32.6us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_SellingGeneralAndAdministrativeExpensesMember
$ 34.6us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_SellingGeneralAndAdministrativeExpensesMember