RECONCILIATION OF WEIGHTED AVERAGE SHARES OUTSTANDING (Tables)

12 Months Ended

Dec. 31, 2018

Reconciliation Of Weighted Average Shares Outstanding [Abstract]

Reconciliation of Basic to Diluted Shares Outstanding

		Year Ended December 31,
		2018	2017	2016
Basic		191.6	191.1	192.7
Dilutive effect of shares issuable under stock-based compensation plans		2.8	3.1	2.7
Diluted		194.4	194.2	195.4
	Antidilutive options to purchase common shares and restricted stock as well as contingently issuable restricted stock which are excluded from the table above	0.4	0.6	0.6