Business Combinations (Separately Recognized Transactions) (Details) - USD ($) $ in Millions	9 Months Ended
	Oct. 02, 2015	Jan. 02, 2015
Business Acquisition [Line Items]
Goodwill	$ 2,083.7	$ 2,085.8
Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Fair value of total purchase consideration	111.0
Net tangible assets acquired	5.4
Identifiable intangible assets	52.8
Deferred income taxes	(8.9)
Goodwill	$ 61.7