Discontinued Operations (Components Of Income Related To Discontinued Operations) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 27, 2019	Jun. 28, 2019	Mar. 29, 2019	Dec. 31, 2018	Sep. 28, 2018	Jun. 29, 2018	Mar. 30, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Discontinued Operation, Income (Loss) from Discontinued Operation Disclosures
Sales									$ 2,610.1	$ 2,844.5	$ 2,810.9
Cost of sales									(1,177.2)	(1,242.7)	(1,189.7)
Selling, general and administrative expenses									(1,094.6)	(1,081.1)	(1,030.7)
Research and development expenses									(151.4)	(172.0)	(172.4)
Other income, net									1.7	2.7	0.1
Interest expense									(9.1)	(20.5)	(22.6)
Income from discontinued operations before income taxes									179.5	330.9	395.6
Gain on disposition of Envista before income taxes									451.1	0.0	0.0
Earnings from discontinued operations before income taxes									630.6	330.9	395.6
Income taxes									(41.4)	(86.3)	(75.7)
Earnings from discontinued operations, net of income taxes									589.2	244.6	319.9
Net earnings attributable to noncontrolling interest									(13.3)	0.0	0.0
Net earnings from discontinued operations attributable to common stockholders	$ 482.2	$ 37.3	$ 54.9	$ 1.5	$ 63.0	$ 63.4	$ 81.0	$ 37.2	$ 575.9	$ 244.6	$ 319.9