Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
Mar. 31, 2016	Mar. 31, 2015
Earnings Per Share
Net income attributable to Amphenol Corporation shareholders (in dollars)	$ 156.6	$ 179.8
Basic weighted average common shares outstanding	307.6	310.0
Effect of dilutive stock options (in shares)	6.6	8.0
Diluted weighted average common shares outstanding	314.2	318.0
Earnings per share attributable to Amphenol Corporation shareholders:
Basic (in dollars per share)	$ 0.51	$ 0.58
Diluted (in dollars per share)	$ 0.50	$ 0.57
Anti-dilutive stock options, excluded from the computations of earning per share	11.0	3.1

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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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period).

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