Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Earnings Per Share
Net income attributable to Amphenol Corporation shareholders (in dollars)	$ 179.0	$ 174.9	$ 358.8	$ 333.4
Basic weighted average common shares outstanding	308,899,937	314,229,370	309,470,068	314,640,882
Effect of dilutive stock options (in shares)	7,978,163	7,352,900	7,958,745	7,325,276
Dilutive weighted average common shares outstanding	316,878,100	321,582,270	317,428,813	321,966,158
Earnings per share attributable to Amphenol Corporation shareholders:
Basic (in dollars per share)	$ 0.58	$ 0.56	$ 1.16	$ 1.06
Diluted (in dollars per share)	$ 0.56	$ 0.54	$ 1.13	$ 1.03
Anti-dilutive stock options, excluded from the computations of earning per share	1,671,550	2,951,100	2,738,857	4,056,342