Business and Summary of Significant Accounting Policies Advertising Costs (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015
Advertising Expense	$ 189.8	$ 180.8	$ 158.5
Prepaid Expenses [Member]
Prepaid Advertising	$ 1.2	$ 4.5