Financial Instruments (Details 2) - USD ($) $ in Millions	Jul. 04, 2015	Jan. 03, 2015
Derivatives, Fair Value
Asset	$ 4.5	$ 10.3
Liability	3.6	11.7
Long-term retirement benefits and other liabilities
Derivatives, Fair Value
Liability	0.1	0.2
Foreign exchange contracts | Other current assets
Derivatives, Fair Value
Asset	4.5	10.3
Foreign exchange contracts | Other accrued liabilities
Derivatives, Fair Value
Liability	2.9	10.5
Commodity contracts | Other accrued liabilities
Derivatives, Fair Value
Liability	$ 0.6	$ 1.0