Net Earnings Per Share (Tables)

9 Months Ended

Sep. 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				9 Months Ended
	September 30,				September 30,
	2017		2016		2017		2016
Net earnings available to common shareholders	$	137.7	$	129.2	$	329.1	$	316.3
Weighted-average common shares outstanding (in millions)
Weighted-average common shares outstanding - basic	66.8		68.4		67.3		70.9
Effect of dilutive securities - stock options	0.2		0.2		0.2		0.2
Effect of other share-based awards	0.6		0.4		0.6		0.5
Weighted-average common shares outstanding - diluted	67.6		69.0		68.1		71.6
Net earnings per share - basic	$	2.06	$	1.89	$	4.89	$	4.46
Net earnings per share - diluted	$	2.04	$	1.87	$	4.84	$	4.42