Earnings Per Share (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Earnings Per Share
Net income attributable to Amphenol Corporation (in dollars)	$ 179.8	$ 158.5
Basic weighted average common shares outstanding	310,046,534	315,056,964
Effect of dilutive stock options (in shares)	7,939,111	7,297,348
Dilutive weighted average common shares outstanding	317,985,645	322,354,312
Earnings per share attributable to Amphenol Corporation shareholders:
Basic (in dollars per share)	$ 0.58us-gaap_EarningsPerShareBasic	$ 0.50us-gaap_EarningsPerShareBasic
Diluted (in dollars per share)	$ 0.57us-gaap_EarningsPerShareDiluted	$ 0.49us-gaap_EarningsPerShareDiluted
Anti-dilutive stock options, excluded from the computations of earning per share	3,146,450	5,529,266

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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