Segment Information (Segment Results) (Details) - USD ($) $ in Millions	3 Months Ended
Apr. 03, 2020	Mar. 29, 2019	Dec. 31, 2019
Segment Reporting Information [Line Items]
Sales	$ 4,343.1	$ 4,220.2
Operating profit	697.5	719.7
Identifiable assets	68,930.3		$ 62,081.6
Other
Segment Reporting Information [Line Items]
Operating profit	(119.2)	(67.0)
Identifiable assets	4,711.1		20,376.3
Life Sciences \| Operating segments
Segment Reporting Information [Line Items]
Sales	1,650.4	1,626.9
Operating profit	325.6	309.0
Identifiable assets	44,765.7		22,381.3
Diagnostics \| Operating segments
Segment Reporting Information [Line Items]
Sales	1,627.0	1,536.8
Operating profit	251.2	233.1
Identifiable assets	14,508.4		14,442.2
Environmental & Applied Solutions \| Operating segments
Segment Reporting Information [Line Items]
Sales	1,065.7	1,056.5
Operating profit	239.9	$ 244.6
Identifiable assets	$ 4,945.1		$ 4,881.8

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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