Discontinued Operations (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Oct. 02, 2020	Sep. 27, 2019	Oct. 02, 2020	Sep. 27, 2019
Discontinued Operations and Disposal Groups [Abstract]
Sales		$ 659.3		$ 2,031.1
Cost of sales		(292.3)		(907.4)
Selling, general and administrative expenses		(272.2)		(869.7)
Research and development expenses		(36.3)		(119.3)
Other income		0.2		1.6
Interest expense		(2.3)		(6.0)
Earnings from discontinued operations before income taxes		56.4		130.3
Income taxes		(13.2)		(30.7)
Net earnings, net of income taxes		43.2		99.6
Net earnings attributable to noncontrolling interest		(5.9)		(5.9)
Earnings from discontinued operations, net of income taxes	$ 0.0	$ 37.3	$ 0.0	$ 93.7

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