POSTRETIREMENT BENEFIT PLANS (Tables)

9 Months Ended

Sep. 30, 2013

Compensation and Retirement Disclosure [Abstract]

Net Periodic Benefit Cost of Pension Plans and Other Employee Related Benefit Plans

The following tables provide the components of net periodic benefit cost for pension plans and other employee-related benefit plans for the three and nine month periods ended September 30, 2013 and 2012.

	2013									2012
Three Months Ended September 30	Pension			Other Benefits			Total			Pension			Other Benefits			Total
Net periodic benefit cost:
Service cost	$	1.7		$	0.7		$	2.4		$	1.5		$	0.5		$	2.0
Interest cost	3.7			2.1			5.8			3.9			2.2			6.1
Expected return on plan assets	(4.9		)	(0.2		)	(5.1		)	(4.7		)	(0.2		)	(4.9		)
Amortization of prior service cost (benefit)	0.2			(0.1		)	0.1			0.2			—			0.2
Amortization of net actuarial loss	2.2			1.1			3.3			1.6			1.1			2.6
Net periodic benefit cost	2.9			3.6			6.5			2.5			3.6			6.0
Loss from curtailment	0.7			—			0.7			—			—			—
Total net periodic benefit cost	$	3.6		$	3.6		$	7.2		$	2.5		$	3.6		$	6.0

	2013									2012
Nine Months Ended September 30	Pension			Other Benefits			Total			Pension			Other Benefits			Total
Net periodic benefit cost:
Service cost	$	5.1		$	2.2		$	7.3		$	4.3		$	1.6		$	5.9
Interest cost	11.0			6.2			17.2			11.6			6.7			18.3
Expected return on plan assets	(14.7		)	(0.5		)	(15.2		)	(13.6		)	(0.4		)	(14.0		)
Amortization of prior service cost (benefit)	0.6			(0.3		)	0.3			0.7			(0.1		)	0.6
Amortization of net actuarial loss	6.7			3.3			10.0			4.7			3.1			7.8
Net periodic benefit cost	$	8.7		$	10.9		$	19.6		$	7.7		$	10.9		$	18.6
Loss from curtailment	0.7			—			0.7			—			—			—
Total net periodic benefit cost	$	9.4		$	10.9		$	20.3		$	7.7		$	10.9		$	18.6