The following table shows the calculation of basic and diluted net earnings per common share under the two-class method:

	Three Months Ended
	March 31,
(In millions, except per share amounts)	2016			2015
Basic Net Earnings Per Common Share:
Numerator
Net earnings available to common stockholders	$	91.9		$	97.2
Distributed and allocated undistributed net loss to non- vested restricted stockholders		(0.6	)		(0.6	)
Distributed and allocated undistributed net earnings to common stockholders		91.3			96.6
Distributed net earnings - dividends paid to common stockholders		(25.4	)		(27.3	)
Allocation of undistributed net earnings to common stockholders	$	65.9		$	69.3
Denominator
Weighted average number of common shares outstanding - basic		195.2			208.9
Basic net earnings per common share:
Distributed net earnings to common stockholders	$	0.13		$	0.13
Allocated undistributed net earnings to common stockholders		0.34			0.33
Basic net earnings per common share:	$	0.47		$	0.46
Diluted Net Earnings Per Common Share:
Numerator
Distributed and allocated undistributed net earnings to common stockholders	$	91.3		$	96.6
Add: Allocated undistributed net earnings to unvested restricted stockholders		0.4			0.5
Less: Undistributed net earnings (loss) reallocated to non- vested restricted stockholders		(0.4	)		(0.5	)
Net earnings available to common stockholders - diluted	$	91.3		$	96.6
Denominator
Weighted average number of common shares outstanding - basic		195.2			208.9
Effect of contingently issuable shares		0.5			1.2
Effect of unvested restricted stock units		0.7			0.8
Weighted average number of common shares outstanding - diluted under two-class		196.4			210.9
Effect of unvested restricted stock - participating security		0.6			0.8
Weighted average number of common shares outstanding - diluted under treasury stock		197.0			211.7
Diluted net earnings per common share	$	0.46		$	0.46