Condensed Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Condensed Consolidated Statements of Income
Net sales	$ 2,653.9	$ 1,987.5	$ 5,031.0	$ 3,849.5
Cost of sales	1,810.7	1,383.7	3,460.3	2,685.9
Gross profit	843.2	603.8	1,570.7	1,163.6
Acquisition-related expenses	55.4	0.0	55.4	0.0
Selling, general and administrative expenses	311.6	246.4	574.3	489.3
Operating income	476.2	357.4	941.0	674.3
Interest expense	(29.1)	(30.2)	(57.7)	(59.0)
Other (expense) income, net	0.0	1.3	(0.4)	2.4
Income from continuing operations before income taxes	447.1	328.5	882.9	617.7
Provision for income taxes	(78.1)	(68.0)	(182.2)	(114.0)
Net income from continuing operations	369.0	260.5	700.7	503.7
Less: Net income from continuing operations attributable to noncontrolling interests	(1.8)	(2.8)	(4.0)	(3.9)
Net income from continuing operations attributable to Amphenol Corporation	367.2	257.7	696.7	499.8
Income from discontinued operations attributable to Amphenol Corporation, net of income taxes of ($0.3)	2.6	0.0	2.6	0.0
Net income attributable to Amphenol Corporation	$ 369.8	$ 257.7	$ 699.3	$ 499.8
Net income per common share - Basic, Continuing operations (in dollars per share)	$ 0.61	$ 0.43	$ 1.17	$ 0.84
Net income per common share - Basic, Discontinued operations, net of income taxes (in dollars per share)	0	0	0	0
Net income per common share - Basic (in dollars per share)	$ 0.62	$ 0.43	$ 1.17	$ 0.84
Weighted average common shares outstanding - Basic (in shares)	597.4	593.3	597.9	594.1
Net income per common share - Diluted, Continuing operations (in dollars per share)	$ 0.59	$ 0.42	$ 1.12	$ 0.82
Net income per common share - Diluted, Discontinued operations, net of income taxes (in dollars per share)	0	0	0	0
Net income per common share - Diluted (in dollars per share)	$ 0.59	$ 0.42	$ 1.12	$ 0.82
Weighted average common shares outstanding - Diluted (in shares)	623.8	608.0	623.9	610.5