EARNINGS PER SHARE

3 Months Ended

Mar. 31, 2013

Earnings Per Share [Abstract]

EARNINGS PER SHARE

EARNINGS PER SHARE

The numerator for basic and diluted earnings per share is net earnings attributable to shareholders reduced by dividends and undistributed earnings attributable to unvested shares. The denominator for basic earnings per share is the weighted-average shares outstanding during the period. The denominator for diluted earnings per share is the weighted-average shares outstanding adjusted for the effect of dilutive stock options and performance share awards.

The following table presents the calculation of basic and diluted earnings per share: 

	Three Months Ended March 31,
(In millions, except per share data)	2013			2012
Basic earnings per share:
Weighted-average shares outstanding	202.7			203.9
Net earnings attributable to shareholders	$	172.5		$	164.2
Dividends and undistributed earnings attributable to unvested shares	(0.4		)	(0.4		)
Net earnings attributable to shareholders used for basic earnings per share calculation	$	172.1		$	163.8
Net earnings attributable to shareholders per share	$	0.85		$	0.80
Diluted earnings per share:
Weighted-average shares outstanding	202.7			203.9
Incremental shares outstanding assuming the exercise/vesting of dilutive stock options/performance shares	0.5			0.7
Weighted-average shares — diluted	203.2			204.6
Net earnings attributable to shareholders	$	172.5		$	164.2
Dividends and undistributed earnings attributable to unvested shares	(0.4		)	(0.4		)
Net earnings attributable to shareholders used for diluted earnings per share calculation	$	172.1		$	163.8
Net earnings attributable to shareholders per share	$	0.85		$	0.80

Potential shares outstanding from all stock-based awards were 3.1 million and 3.1 million as of March 31, 2013 and 2012, respectively, of which 2.6 million and 2.4 million were not included in the diluted earnings per share calculation for the three months ended March 31, 2013 and 2012, respectively.