Segment Information (Segment Results) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 28, 2014 Business_Segments	Mar. 29, 2013
Segment Reporting Information [Line Items]
Number of segments reported	5
Sales	$ 4,662.7	$ 4,444.7
Operating profit	788.9	730.9
Test & Measurement
Segment Reporting Information [Line Items]
Sales	871.0	855.4
Operating profit	192.7	187.3
Environmental
Segment Reporting Information [Line Items]
Sales	768.7	725.3
Operating profit	145.6	135.1
Life Sciences & Diagnostics
Segment Reporting Information [Line Items]
Sales	1,659.6	1,567.4
Operating profit	219.7	199.3
Dental
Segment Reporting Information [Line Items]
Sales	509.7	479.8
Operating profit	75.5	62.9
Industrial Technologies
Segment Reporting Information [Line Items]
Sales	853.7	816.8
Operating profit	191.7	170.9
Other
Segment Reporting Information [Line Items]
Sales	0	0
Operating profit	$ (36.3)	$ (24.6)