STOCKHOLDERS' EQUITY - Accumulated Other Comprehensive Income (Loss) Rollforward (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	$ (124.1)
Other comprehensive income before reclassifications	(76.8)
Amounts reclassified from AOCI	(2.1)	[1]
Other Comprehensive Income (Loss), Net of Tax	(78.9)		65.9
Ending balance	(203.0)
Cumulative Translation Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	14.1
Other comprehensive income before reclassifications	(75.6)
Amounts reclassified from AOCI	(2.6)	[1]
Other Comprehensive Income (Loss), Net of Tax	(78.2)
Ending balance	(64.1)
Deriviatve Hedging Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(0.4)
Other comprehensive income before reclassifications	(2.9)
Amounts reclassified from AOCI	0.6	[1]
Other Comprehensive Income (Loss), Net of Tax	(2.3)
Ending balance	(2.7)
Unrealized Gains and Losses on Debt and Equity Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	1.9
Other comprehensive income before reclassifications	0
Amounts reclassified from AOCI	(1.9)	[1]
Other Comprehensive Income (Loss), Net of Tax	(1.9)
Ending balance	0
Pension Liability Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(139.7)
Other comprehensive income before reclassifications	1.7
Amounts reclassified from AOCI	1.8	[1]
Other Comprehensive Income (Loss), Net of Tax	3.5
Ending balance	$ (136.2)

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