Condensed Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Condensed Consolidated Statements of Income
Net sales	$ 2,377.1	$ 1,862.0
Cost of sales	1,649.6	1,302.2
Gross profit	727.5	559.8
Selling, general and administrative expenses	262.7	242.9
Operating income	464.8	316.9
Interest expense	(28.6)	(28.8)
Other (expense) income, net	(0.3)	1.1
Income before income taxes	435.9	289.2
Provision for income taxes	(104.1)	(46.0)
Net income	331.8	243.2
Less: Net income attributable to noncontrolling interests	(2.2)	(1.1)
Net income attributable to Amphenol Corporation	$ 329.6	$ 242.1
Net income per common share - Basic (in dollars per share)	$ 0.55	$ 0.41
Weighted average common shares outstanding - Basic (in shares)	598.5	594.9
Net income per common share - Diluted (in dollars per share)	$ 0.53	$ 0.40
Weighted average common shares outstanding - Diluted (in shares)	624.1	612.9