SHAREHOLDERS' EQUITY (Details) (USD $) In Millions, unless otherwise specified	2 Months Ended	3 Months Ended				6 Months Ended
	Jun. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2013	Mar. 31, 2013	Jun. 30, 2014	Jun. 30, 2013	Apr. 24, 2014
Stockholders' Equity Note [Abstract]
Authorized share repurchase program (in shares)								8
Stock Repurchase Program, Period in Force						3 years 0 months 0 days
Common stock repurchased and retired (in shares)						1.1	0.6
Stock Repurchased and Retired During Period, Value						$ 29.7	$ 14.7
Total repurchased shares under this program (in shares)	0.5
Remaining shares authorized to be purchased (in shares)	7.5	7.5				7.5
Stock options exercised						0.3	0.3
Total value of stock options exercised						7.3	6.8
Foreign Currency Translation Adjustment [Abstract]
Beginning balance			(0.5)		2.1	(0.5)	2.1
Unrealized gains (losses)		0.3	0.7	(2.3)	0.1	1.0	(2.2)
Ending balance	0.5	0.5		(0.1)		0.5	(0.1)
Unrealized Gains (Losses) on Derivative Contracts (net of taxes) [Abstract]
Beginning balance			0.9		4.7	0.9	4.7
Unrealized gains (losses)		4.1	(3.5)	(4.3)	(4.1)
Reclassification adjustments into income		(1.3)	0.4	0	(1.0)
Ending balance	0.6	0.6		(4.7)		0.6	(4.7)
Pension and Postretirement Benefits (net of taxes) [Abstract]
Beginning balance			(365.5)		(378.1)	(365.5)	(378.1)
Unrealized gains (Losses)		0	0	0	0
Reclassification adjustments into income		4.0	4.0	5.2	5.2
Ending balance	(357.5)	(357.5)		(367.7)		(357.5)	(367.7)
Accumulated Other Comprehensive Loss [Abstract]
Beginning balance			(365.1)		(371.3)	(365.1)	(371.3)
Unrealized gains (losses)		4.4	(2.8)	(6.6)	(4.0)
Reclassification adjustments into income		2.7	4.4	5.2	4.2
Ending balance	(356.4)	(356.4)		(372.5)		(356.4)	(372.5)
Deferred tax provision (benefit) on unrealized gains and losses on derivative contracts		1.8		(2.6)		(0.2)	(6.0)
Deferred tax provision pension and postretirement benefits		$ 2.8		$ 3.2		$ 5.3	$ 6.5