Condensed Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Net sales	$ 2,015.3	$ 1,981.4	$ 3,973.8	$ 3,848.3
Cost of sales	1,367.7	1,336.6	2,698.4	2,596.6
Gross profit	647.6	644.8	1,275.4	1,251.7
Acquisition-related expenses	8.9	0.0	25.4	0.0
Selling, general and administrative expenses	239.2	236.6	474.3	466.6
Operating income	399.5	408.2	775.7	785.1
Interest expense	(30.0)	(26.0)	(59.7)	(50.5)
Other income, net	0.1	0.1	3.1	2.4
Income before income taxes	369.6	382.3	719.1	737.0
Provision for income taxes	(78.7)	(94.5)	(158.3)	(180.9)
Net income	290.9	287.8	560.8	556.1
Less: Net income attributable to noncontrolling interests	(2.5)	(3.0)	(4.8)	(5.7)
Net income attributable to Amphenol Corporation	$ 288.4	$ 284.8	$ 556.0	$ 550.4
Net income per common share - Basic (in dollars per share)	$ 0.97	$ 0.95	$ 1.87	$ 1.82
Weighted average common shares outstanding - Basic (in shares)	298.0	300.8	298.1	302.3
Net income per common share - Diluted (in dollars per share)	$ 0.93	$ 0.91	$ 1.80	$ 1.75
Weighted average common shares outstanding - Diluted (in shares)	308.7	312.3	308.7	314.2