Segment Information (Segment Results) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 26, 2014	Sep. 27, 2013	Sep. 26, 2014 Business_Segments	Sep. 27, 2013
Segment Reporting Information [Line Items]
Number of segments reported			5
Sales:	$ 4,870.3	$ 4,669.1	$ 14,496.6	$ 13,851.3
Operating Profit:	865.8	812.4	2,544.0	2,386.9
Test & Measurement
Segment Reporting Information [Line Items]
Sales:	821.0	808.6	2,548.5	2,519.0
Operating Profit:	143.8	155.0	494.3	520.7
Environmental
Segment Reporting Information [Line Items]
Sales:	914.1	828.7	2,558.8	2,380.8
Operating Profit:	186.2	171.6	515.6	485.6
Life Sciences & Diagnostics
Segment Reporting Information [Line Items]
Sales:	1,741.2	1,675.1	5,190.8	4,916.8
Operating Profit:	272.8	246.8	775.2	686.8
Dental
Segment Reporting Information [Line Items]
Sales:	528.4	510.2	1,566.2	1,504.7
Operating Profit:	91.2	82.2	244.6	223.9
Industrial Technologies
Segment Reporting Information [Line Items]
Sales:	865.6	846.5	2,632.3	2,530.0
Operating Profit:	210.1	191.7	619.3	566.7
Other
Segment Reporting Information [Line Items]
Operating Profit:	$ (38.3)	$ (34.9)	$ (105.0)	$ (96.8)