Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2021

Earnings Per Share [Abstract]

Denominator for Basic and Diluted Earnings Per Share

The denominator for basic and diluted earnings per share for the three and six months ended June 30, 2021 and 2020 is as follows:

	Three Months Ended   June 30		Six Months Ended   June 30
	2021	2020	2021	2020
Denominator for basic earnings per share – weighted-average shares	244.5	252.2	244.8	252.3
Effect of dilutive securities – employee stock options, nonvested restricted stock awards and convertible debentures	2.9	3.2	3.0	3.6
Denominator for diluted earnings per share	247.4	255.4	247.8	255.9