PREFERRED STOCK AND COMMON SHAREHOLDERS' EQUITY (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2019	Feb. 06, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Stockholders' Equity Note [Abstract]
Stock Repurchased During Period, Shares	2.9
Treasury Stock Acquired, Average Cost Per Share	$ 154.94
Treasury Stock, Carrying Basis				$ 450.0
Value of Common Stock Repurchased Prior to New Plan				$ 100.0
Common stock, par value per share (in dollars per share)				$ 0.10
Preferred stock, shares authorized (in shares)				30.0
Preferred stock, par value per share (in dollars per share)				$ 0.10
Common stock, shares authorized (in shares)				265.0
Common shares issued and outstanding [Abstract]
Common shares issued	122.4	125.1	125.1	97.2		122.4	125.1	125.6
In treasury	0.0	(23.2)	(23.2)	0.0		(23.5)	(23.2)	(22.9)
Outstanding				97.2		98.9
Rollforward of common shares issued [Abstract]
Common shares issued, beginning balance (in shares)	122.4	125.1	125.6
Common stock issued under employee stock plans (in shares)	1.2	1.6	1.7
Common stock issued upon conversion of zero-coupon subordinated notes (in shares)	0.1	0.0	0.3
Common shares repurchased (in shares)	(2.9)	(4.3)	(2.5)
Common shares issued, ending balance (in shares)	97.2	122.4	125.1
Rollforward of common shares held in treasury [Abstract]
Common shares held in treasury, beginning balance	23.5	23.2	22.9
Stock Issued During Period, Shares, Restricted Stock Award, Forfeited	0.1	0.3	0.3
Common shares held in treasury, ending balance	0.0	23.5	23.2
Share repurchase program [Abstract]
Purchase of common stock	$ (450.0)	$ (700.0)	$ (338.1)
Outstanding common stock repurchase authorization				$ 900.0
Accumulated Other Comprehensive Income (Loss) [Line Items]
Stock Repurchase Program, Authorized Amount					$ 1,250.0
Treasury Stock, Shares, Retired	(23.6)	0.0	0.0
Foreign Currency Translation Adjustments
Foreign Currency Translation Adjustments, balance	$ (285.4)	$ (389.8)	$ (240.7)
Current year adjustments, Foreign Currency Translation Adjustments	104.4	(176.6)	265.1
Tax effect of adjustments, Foreign Currency Translation Adjustments	0.0	27.5
Net Benefit Plan Adjustments
Net Benefit Plan Adjustments, balance	(73.3)	(93.0)
Tax effect of adjustments, Net Benefit Plan Adjustments	3.7	(9.6)
Net Benefit Plan Adjustments, balance	(87.0)	(73.3)	(93.0)
Accumulated Other Comprehensive Earnings
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	5.1	7.4
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, before Tax	5.1	7.4
Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment and Tax	(22.5)	29.4
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, before Tax	0.0	0.0
Other Comprehensive Income (Loss), before Reclassifications, before Tax	81.9	(147.2)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Net of Tax		0.0
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement and Curtailment Gain (Loss), before Tax		(7.5)
Tax effect of adjustments, Accumulated Other Comprehensive Earnings	3.7	17.9	(37.8)
Accumulated Other Comprehensive Earnings, balance				372.4		$ 463.1		$ 581.9
AOCI Attributable to Parent [Member]
Share repurchase program [Abstract]
Purchase of common stock	$ 0.0	$ 0.0	$ 0.0
Accumulated Other Comprehensive Earnings
Accumulated Other Comprehensive Earnings, balance				$ 372.4		$ 463.1	$ 333.7