Net Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2017

Earnings Per Share [Abstract]

Calculations of net earnings per share basic and diluted

The calculations of net earnings per share – basic and net earnings per share – diluted were as follows:

	3 Months Ended				6 Months Ended
	June 30,				June 30,
	2017		2016		2017		2016
Net earnings available to common shareholders	$	117.0	$	115.4	$	191.4	$	187.1
Weighted-average common shares outstanding (in millions)
Weighted-average common shares outstanding - basic	67.4		71.6		67.5		72.2
Effect of dilutive securities - stock options	0.2		0.3		0.2		0.3
Effect of other share-based awards	0.4		0.4		0.6		0.4
Weighted-average common shares outstanding - diluted	68.0		72.3		68.3		72.9
Net earnings per share - basic	$	1.74	$	1.61	$	2.83	$	2.59
Net earnings per share - diluted	$	1.72	$	1.60	$	2.80	$	2.57