STOCKHOLDERS' EQUITY - Accumulated Other Comprehensive Income (Loss) Rollforward (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	$ (116.5)		$ (124.1)
Other comprehensive income before reclassifications	17.5		(76.8)
Amounts reclassified from AOCI	(1.2)	[1]	(2.1)	[1]
Other comprehensive income (loss)	16.3		(78.9)
Ending balance	(100.2)		(203.0)
Cumulative Translation Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(7.9)		14.1
Other comprehensive income before reclassifications	18.2		(75.6)
Amounts reclassified from AOCI	0	[1]	(2.6)	[1]
Other comprehensive income (loss)	18.2		(78.2)
Ending balance	10.3		(64.1)
Deriviatve Hedging Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	2.7		(0.4)
Other comprehensive income before reclassifications	(0.5)		(2.9)
Amounts reclassified from AOCI	(2.2)	[1]	0.6	[1]
Other comprehensive income (loss)	(2.7)		(2.3)
Ending balance	0		(2.7)
Unrealized Gains and Losses on Debt and Equity Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	0		1.9
Other comprehensive income before reclassifications	0		0
Amounts reclassified from AOCI	0	[1]	(1.9)	[1]
Other comprehensive income (loss)	0		(1.9)
Ending balance	0		0
Pension Liability Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(111.3)		(139.7)
Other comprehensive income before reclassifications	(0.2)		1.7
Amounts reclassified from AOCI	1.0	[1]	1.8	[1]
Other comprehensive income (loss)	0.8		3.5
Ending balance	$ (110.5)		$ (136.2)

[1] See table on the next page for details about these reclassifications.