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, unless otherwise specified	Sep. 06, 2014	Dec. 28, 2013	Sep. 07, 2013
Quoted Prices with Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign exchange contracts asset	$ 4.5	$ 1.7	$ 0
Interest rate swap asset	0.4	0.9	4.7
Foreign exchange contracts liability	$ 0.1	$ 2.3	$ 0.2