Consolidated and Combined Statements of Earnings and Comprehensive Income - USD ($) shares in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Sales	$ 2,704,600,000	$ 2,772,100,000	$ 2,665,900,000
Cost of sales	(1,516,500,000)	(1,581,300,000)	(1,530,800,000)
Gross profit	1,188,100,000	1,190,800,000	1,135,100,000
Operating costs:
Selling, general and administrative expenses	(508,400,000)	(491,300,000)	(499,300,000)
Research and development expenses	(126,200,000)	(136,400,000)	(136,200,000)
Impairment of goodwill	(85,300,000)	0	0
Operating profit	468,200,000	563,100,000	499,600,000
Non-operating income (expenses), net:
Interest (expense) income, net	(10,000,000.0)	3,300,000	8,400,000
Other non-operating income (expense), net	2,100,000	(600,000)	(700,000)
Earnings before income taxes	460,300,000	565,800,000	507,300,000
Provision for income taxes	(118,300,000)	(129,300,000)	(121,800,000)
Net earnings	$ 342,000,000.0	$ 436,500,000	$ 385,500,000
Net earnings per share:
Net earnings per share, Basic (in dollars per share)	$ 2.03	$ 2.59	$ 2.29
Net earnings per share, Diluted (in dollars per share)	$ 2.02	$ 2.59	$ 2.29
Average common stock and common equivalent shares outstanding:
Average common stock and common equivalent shares outstanding, Basic (in shares)	168.4	168.4	168.4
Average common stock and common equivalent shares outstanding, Diluted (in shares)	169.4	168.4	168.4
Other comprehensive income (loss), net of income taxes:
Foreign currency translation adjustments	$ 44,600,000	$ 22,400,000	$ (33,500,000)
Other adjustments	500,000	0	1,000,000.0
Total other comprehensive income (loss), net of income taxes	45,100,000	22,400,000	(32,500,000)
Comprehensive income	387,100,000	458,900,000	353,000,000.0
Sales of products
Sales	2,459,900,000	2,484,000,000.0	2,408,100,000
Cost of sales	(1,326,800,000)	(1,349,300,000)	(1,328,200,000)
Sales of services
Sales	244,700,000	288,100,000	257,800,000
Cost of sales	$ (189,700,000)	$ (232,000,000.0)	$ (202,600,000)