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Employee Benefits (Tables)

3 Months Ended

Mar. 31, 2015

Compensation and Retirement Disclosure [Abstract]

Schedule of Net Benefit Costs [Table Text Block]



	Pension
	Three Months Ended
	March 31,
	2015				2014
	(in millions)
Service cost	$	0.6			$	0.7
Interest cost	1.3				1.4
Expected return on plan assets	(1.4		)		(1.2		)
Amortization of prior service costs ⁽¹⁾	0.8				1.2
Amortization of actuarial losses ⁽¹⁾	0.3				0.2
Periodic expense	$	1.6			$	2.3

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⁽¹⁾	Amortization of prior service costs and actuarial losses out of AOCI are recognized in the Condensed Consolidated Statements of Operations in "General and administrative."



	Postretirement Benefits
	Three Months Ended
	March 31,
	2015				2014
	(in millions)
Interest cost	$	0.1			$	0.1
Amortization of prior service costs ⁽¹⁾	—				0.1
Periodic expense	$	0.1			$	0.2

____________________________


⁽¹⁾	Amortization of prior service costs out of AOCI are recognized in the Condensed Consolidated Statements of Operations in "General and administrative."