Business Acquisitions, Goodwill and Acquired Intangible Assets (Other Acquired Intangible Assets) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 28, 2014	Dec. 29, 2013
Schedule of Acquired Intangible Assets by Major Class [Line Items]
Gross carrying amount	$ 338.6	$ 309.6
Accumulated amortization	166.8	141.2
Net carrying amount	171.8	168.4
Total other acquired intangible assets, gross carrying amount	444.4	412.1
Total other acquired intangible assets, accumulated amortization	166.8	141.2
Total other acquired intangible assets, net carrying amount	277.6	270.9
Proprietary technology
Schedule of Acquired Intangible Assets by Major Class [Line Items]
Gross carrying amount	202.8	191.3
Accumulated amortization	99.7	82.5
Net carrying amount	103.1	108.8
Customer list/relationships
Schedule of Acquired Intangible Assets by Major Class [Line Items]
Gross carrying amount	117.6	100.5
Accumulated amortization	51.0	42.7
Net carrying amount	66.6	57.8
Patents
Schedule of Acquired Intangible Assets by Major Class [Line Items]
Gross carrying amount	0.7	0.7
Accumulated amortization	0.6	0.6
Net carrying amount	0.1	0.1
Noncompete agreements
Schedule of Acquired Intangible Assets by Major Class [Line Items]
Gross carrying amount	0.9	0.9
Accumulated amortization	0.9	0.9
Net carrying amount	0	0
Trademarks
Schedule of Acquired Intangible Assets by Major Class [Line Items]
Gross carrying amount	3.4	3.3
Accumulated amortization	1.9	1.7
Net carrying amount	1.5	1.6
Backlog
Schedule of Acquired Intangible Assets by Major Class [Line Items]
Gross carrying amount	13.2	12.9
Accumulated amortization	12.7	12.8
Net carrying amount	0.5	0.1
Trademarks
Schedule of Acquired Intangible Assets by Major Class [Line Items]
Other acquired intangible assets not subject to amortization	$ 105.8	$ 102.5