RESTRUCTURING AND OTHER SPECIAL CHARGES (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Restructuring and Related Activities [Abstract]
Net restructuring charges		$ 21.8	$ 25.3	$ 44.6
Restructuring charges related to severance and other employee costs		15.4	16.2	27.4
Restructuring charges related to contractual obligations associated with leased facilities and other facility related costs		9.5	19.6	22.0
Reduction in prior employee severance benefits related restructuring accruals		0.7	6.3
Reduction in prior facility related restructuring accruals		2.4	4.2
Loss on disposal of European subsidiary	6.9
Reduction in total prior restructuring accruals		3.1		4.8
Impairment of equipment, computer systems and leasehold improvements				18.9
Special charge related to write-off of certain assets and liabilities related to an investment				14.8
Write-off of an uncollectible receivable from a past installment sale				$ 2.6