Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Earnings Per Share
Net income attributable to Amphenol Corporation shareholders	$ 206.5	$ 179.0	$ 363.2	$ 358.8
Basic weighted average common shares outstanding	308.2	308.9	307.9	309.5
Effect of dilutive stock options (in shares)	7.2	8.0	6.9	7.9
Diluted weighted average common shares outstanding	315.4	316.9	314.8	317.4
Earnings per share attributable to Amphenol Corporation shareholders:
Basic (in dollars per share)	$ 0.67	$ 0.58	$ 1.18	$ 1.16
Diluted (in dollars per share)	$ 0.65	$ 0.56	$ 1.15	$ 1.13
Anti-dilutive stock options, excluded from the computations of earning per share	8.2	1.7	10.0	2.7