Financial Instruments and Risk Management (Financial Assets and Liabilities Measured at Fair Value) (Details) - Quoted Prices with Other Observable Inputs (Level 2) [Member] - USD ($) $ in Millions	Jun. 18, 2016	Jan. 02, 2016	Jun. 20, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps asset	$ 0.0	$ 0.2	$ 0.0
Interest rate swaps liability	13.6	3.9	0.4
Hedge [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign exchange contracts asset	1.2	6.7	2.4
Foreign exchange contracts liability	3.1	0.0	2.0
Non-hedge [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign exchange contracts asset	0.0	0.5	0.0
Foreign exchange contracts liability	$ 0.1	$ 0.1	$ 0.0