Changes in Equity and Noncontrolling Interests (Tables)

3 Months Ended

Mar. 31, 2016

Changes in Equity and Noncontrolling Interests

Rollforward of consolidated changes in equity

A rollforward of consolidated changes in equity for the three months ended March 31, 2016 is as follows:

	Amphenol Corporation Shareholders
	Common Stock									Accumulated Other
	Shares (in millions)		Amount		Additional Paid- In Capital		Retained Earnings			Comprehensive Loss			Treasury Stock			Noncontrolling Interests			Total Equity
Balance as of December 31, 2015	308.0		$	0.3	$	783.3	$	2,804.4		$	(349.5	)	$	—		$	39.9		$	3,278.4
Net income							156.6									1.8			158.4
Other comprehensive income (loss)										52.1						0.3			52.4
Distributions to shareholders of noncontrolling interests																(4.0		)	(4.0		)
Purchase of treasury stock													(49.2		)				(49.2		)
Retirement of treasury stock	(1.0	)					(49.2		)				49.2						—
Stock options exercised, including tax benefit	0.7				19.6														19.6
Dividends declared							(43.0		)										(43.0		)
Stock-based compensation expense					11.6														11.6
Balance as of March 31, 2016	307.7		$	0.3	$	814.5	$	2,868.8		$	(297.4	)	$	—		$	38.0		$	3,424.2

A rollforward of consolidated changes in equity for the three months ended March 31, 2015 is as follows:

	Amphenol Corporation Shareholders
	Common Stock									Accumulated Other
	Shares (in millions)		Amount		Additional Paid- In Capital		Retained Earnings			Comprehensive Loss			Treasury Stock			Noncontrolling Interests			Total Equity
Balance as of December 31, 2014	309.9		$	0.3	$	659.4	$	2,453.5		$	(205.8	)	$	—		$	30.5		$	2,937.9
Net income							179.8									2.0			181.8
Other comprehensive income (loss)										(65.7		)				—			(65.7		)
Distributions to shareholders of noncontrolling interests																(3.2		)	(3.2		)
Purchase of treasury stock													(62.2		)				(62.2		)
Retirement of treasury stock	(1.1	)					(62.2		)				62.2						—
Stock options exercised, including tax benefit	0.6				19.3														19.3
Dividends declared							(38.8		)										(38.8		)
Stock-based compensation expense					10.1														10.1
Balance as of March 31, 2015	309.4		$	0.3	$	688.8	$	2,532.3		$	(271.5	)	$	—		$	29.3		$	2,979.2