Segment Information (Sales By Major Product Group) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Oct. 02, 2015	Jul. 03, 2015	Apr. 03, 2015	Dec. 31, 2014	Sep. 26, 2014	Jun. 27, 2014	Mar. 28, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Sales	$ 5,884.8	$ 5,023.4	$ 4,960.2	$ 4,694.7	$ 5,224.2	$ 4,707.1	$ 4,783.5	$ 4,439.2	$ 20,563.1	$ 19,154.0	$ 18,283.1
Analytical and physical instrumentation
Sales									5,760.6	5,778.6	5,443.6
Medical and dental products
Sales									10,962.8	9,381.6	8,958.0
Motion and industrial automation controls
Sales									1,407.0	1,554.5	1,559.1
Product identification
Sales									1,571.6	1,611.2	1,551.5
All other
Sales									$ 861.1	$ 828.1	$ 770.9