Condensed Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Condensed Consolidated Statements of Income
Net sales	$ 2,323.4	$ 2,100.6	$ 6,172.9	$ 6,074.4
Cost of sales	1,588.5	1,438.7	4,274.4	4,137.1
Gross profit	734.9	661.9	1,898.5	1,937.3
Acquisition-related expenses	0.0	0.0	0.0	25.4
Selling, general and administrative expenses	259.1	248.3	748.4	722.5
Operating income	475.8	413.6	1,150.1	1,189.4
Interest expense	(28.0)	(29.7)	(87.1)	(89.5)
Loss on early extinguishment of debt	0.0	(14.3)	0.0	(14.3)
Other income, net	1.0	4.5	3.4	7.6
Income before income taxes	448.8	374.1	1,066.4	1,093.2
Provision for income taxes	(99.3)	(91.8)	(213.3)	(250.0)
Net income	349.5	282.3	853.1	843.2
Less: Net income attributable to noncontrolling interests	(2.9)	(2.0)	(6.7)	(6.9)
Net income attributable to Amphenol Corporation	$ 346.6	$ 280.3	$ 846.4	$ 836.3
Net income per common share - Basic (in dollars per share)	$ 1.16	$ 0.95	$ 2.84	$ 2.81
Weighted average common shares outstanding - Basic (in shares)	298.8	296.6	297.6	297.6
Net income per common share - Diluted (in dollars per share)	$ 1.12	$ 0.92	$ 2.76	$ 2.72
Weighted average common shares outstanding - Diluted (in shares)	308.2	306.2	306.2	307.8