Goodwill and Other Intangible Assets (Other Intangible Assets) (Details) (USD $) In Millions, unless otherwise specified	0 Months Ended	12 Months Ended	0 Months Ended
	Jan. 03, 2012	Dec. 31, 2014	Jan. 03, 2013	Jan. 03, 2014	Jan. 05, 2015
Other Intangible Assets [Line Items]
Up-front payment	$ 63.0
Contingent payment period	4 years
Additional contingent cash payment	84.0
Conditional payment amount accrued		33.4
After One Year of Meeting Supply Target [Member]
Other Intangible Assets [Line Items]
Conditional payment, amount paid			34.0
After Two Year of Meeting Supply Target [Member]
Other Intangible Assets [Line Items]
Conditional payment, amount paid				16.7
After Year Four of Meeting Supply Target [Member]
Other Intangible Assets [Line Items]
Additional contingent cash payment		16.7
Subsequent Event [Member] | After Year Three of Meeting Supply Target [Member]
Other Intangible Assets [Line Items]
Conditional payment, amount paid					$ 16.7