WEIGHTED AVERAGE SHARES OUTSTANDING

6 Months Ended

Jun. 30, 2021

Earnings Per Share [Abstract]

WEIGHTED AVERAGE SHARES OUTSTANDING

WEIGHTED AVERAGE SHARES OUTSTANDING

Below is a reconciliation of basic to diluted shares outstanding:

	Three Months Ended June 30,		Six Months Ended June 30,
	2021	2020	2021	2020
Basic	186.7	187.7	187.0	187.6
Dilutive effect of shares issuable under stock-based compensation plans	1.2	1.3	1.2	1.7
Diluted	187.9	189.0	188.2	189.3
Anti-dilutive options to purchase common shares and restricted stock as well as contingently issuable restricted stock which are excluded from the table above	0.2	0.3	0.3	0.3

The calculation of diluted EPS requires certain assumptions regarding the use of both cash proceeds and assumed proceeds that would be received upon the exercise of stock options and vesting of restricted stock outstanding as of June 30, 2021 and 2020.