Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2019

Earnings Per Share [Abstract]

Denominator For Basic And Diluted Earnings Per Share

The denominator for basic and diluted earnings per share at December 31, 2019, 2018 and 2017 is as follows:

	2019	2018	2017
Denominator for basic earnings per share—weighted-average shares	255.5	258.1	261.5
Effect of dilutive securities—employee stock options, non-vested restricted stock awards, convertible debentures and equity units	4.8	6.1	6.3
Denominator for diluted earnings per share	260.3	264.2	267.8