Income Taxes (Schedule of Income Taxes Payable) (Details) - USD ($) $ in Millions	Dec. 29, 2017	Dec. 30, 2016
Operating Loss Carryforwards [Line Items]
Other income tax liabilities	$ 94.1	$ 70.4
Total income taxes payable	109.9	172.1
Accrued and Other Current Liabilities
Operating Loss Carryforwards [Line Items]
Income taxes payable	15.8	101.7
Other Income Tax Liabilities
Operating Loss Carryforwards [Line Items]
Other income tax liabilities	$ 94.1	$ 70.4