Net Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2014

Net Earnings Per Share [Abstract]

Net earnings per share

The calculation of net earnings per share — basic was as follows:

Year Ended December 31	2014		2013		2012
Net earnings available to common shareholders	$	427.6	$	288.0	$	197.6
Weighted-average common shares outstanding (in millions)		79.5		78.0		79.5
Net earnings per share — basic	$	5.38	$	3.69	$	2.49
The calculation of net earnings per share — diluted was as follows:
Year Ended December 31		2014		2013		2012
Net earnings available to common shareholders	$	427.6	$	288.0	$	197.6
Weighted-average common shares outstanding (in millions)		79.5		78.0		79.5
Effect of dilutive securities — stock options (in millions)		0.6		0.8		0.3
Effect of other share-based awards (in millions)		0.6		0.8		0.3
		80.7		79.6		80.1
Net earnings per share — diluted	$	5.30	$	3.62	$	2.47

Number, exercise prices and weighted-average remaining life of antidilutive awards

The number, exercise prices and weighted-average remaining life of these antidilutive awards were as follows:

	2014		2013		2012
Shares (in thousands)		692		995		4,257
Exercise price ranges		$76–$93		$67–$93		$40–$93
Weighted-average remaining life		4.1 years		5.2 years		4.8 years