Income Taxes (Schedule of Income Taxes Payable) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 27, 2019	Dec. 28, 2018
Operating Loss Carryforwards [Line Items]
Document Period End Date	Dec. 27, 2019
Other income tax liabilities	$ 227.1	$ 228.0
Total income taxes payable	242.1	253.0
Accrued and Other Current Liabilities
Operating Loss Carryforwards [Line Items]
Income taxes payable	15.0	25.0
Other Income Tax Liabilities
Operating Loss Carryforwards [Line Items]
Other income tax liabilities	$ 227.1	$ 228.0