RESTRUCTURING CHARGE (Details 1) (USD $) In Millions, unless otherwise specified	3 Months Ended				6 Months Ended		20 Months Ended
	Jun. 30, 2012	Mar. 31, 2012	Jun. 30, 2011	Mar. 31, 2011	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Dec. 31, 2011	Dec. 31, 2010
Restructuring Cost and Reserve [Line Items]
Accrued restructuring costs	$ 12.7		$ 7.7		$ 12.7	$ 7.7	$ 12.7	$ 12.1	$ 7.0
Restructuring charges	1.8	1.9	2.4	0.1	3.7	2.5	48.6
Restructuring and Related Cost, Incurred Cost					(3.1)	(1.8)
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Accrued restructuring costs	11.9		6.9		11.9	6.9	11.9	11.3	6.0
Restructuring charges	1.0	0.9	0.9	0.1			14.3
Restructuring and Related Cost, Incurred Cost					(1.3)	(0.1)
Pension and other postretirement benefits curtailment [Member]
Restructuring Cost and Reserve [Line Items]
Accrued restructuring costs	0		0		0	0	0	0	0
Restructuring charges	0	0	1.1	0			4.1
Restructuring and Related Cost, Incurred Cost					0	(1.1)
Lease and Other Contract Termination [Member]
Restructuring Cost and Reserve [Line Items]
Accrued restructuring costs	0.8		0.8		0.8	0.8	0.8	0.8	1.0
Restructuring charges	0	0	0	0			1.0
Restructuring and Related Cost, Incurred Cost					0	(0.2)
Employee Relocation Cost [Member]
Restructuring Cost and Reserve [Line Items]
Accrued restructuring costs	0		0		0	0	0	0	0
Restructuring charges	0.7	0.8	0.3	0			3.7
Restructuring and Related Cost, Incurred Cost					(1.5)	(0.3)
Facility Exit Costs (asset retirement obligations [Member]
Restructuring Cost and Reserve [Line Items]
Accrued restructuring costs	0		0		0	0	0	0	0
Restructuring charges	0.1	0.2	0.1	0			8.0
Restructuring and Related Cost, Incurred Cost					$ (0.3)	$ (0.1)