Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Earnings Per Share
Net income attributable to Amphenol Corporation shareholders (in dollars)	$ 204.5	$ 182.2	$ 563.3	$ 515.6
Basic weighted average common shares outstanding	308,853,642	313,284,242	309,262,335	314,183,699
Effect of dilutive stock options (in shares)	7,032,954	7,352,163	7,646,756	7,334,337
Dilutive weighted average common shares outstanding	315,886,596	320,636,405	316,909,091	321,518,036
Earnings per share attributable to Amphenol Corporation shareholders:
Basic (in dollars per share)	$ 0.66	$ 0.58	$ 1.82	$ 1.64
Diluted (in dollars per share)	$ 0.65	$ 0.57	$ 1.78	$ 1.60
Anti-dilutive stock options, excluded from the computations of earning per share	9,388,150	6,169,900	5,033,840	4,695,200