Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2014

Earnings Per Share [Abstract]

Denominator for Basic and Diluted Earnings Per Share

The denominator for basic and diluted earnings per share for the three months ended March 31, 2014 and 2013 is as follows:

	Three Months Ended   March 31
	2014	2013
Denominator for basic earnings per share – weighted-average shares	284.9	303.2
Effect of dilutive securities – employee stock options, non-vested restricted stock awards and convertible debentures	7.7	2.7
Denominator for diluted earnings per share	292.6	305.9