Fair Value Measurements, Level 3 Reconciliation (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
Contingent Consideration [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	$ 33.7	$ 4.6	$ 20.1	$ 1.7
Additions	0	12.9	0	15.8
Payments	(0.7)	(0.7)	(0.7)	(1.0)
Change in fair value included in earnings	(0.1)	0	13.5	0.3
Ending Balance	32.9	16.8	32.9	16.8
Auction Rate Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	4.2	4.3	4.3	4.3
Sale of securities	0	0	(0.1)	0
Ending Balance	$ 4.2	$ 4.3	$ 4.2	$ 4.3