Pension and Post-retirement Benefit Plans Pension and Post-retirement Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2014

Compensation and Retirement Disclosure [Abstract]

Components of net periodic benefit cost

The components of net periodic benefit cost were as follows (in millions):

	For the Three Months Ended September 30,
	2014			2013			2014			2013
	Pension Benefits						Other Benefits
Service cost	$	1.1		$	1.3		$	—		$	—
Interest cost	4.4			4.0			0.1			—
Expected return on plan assets	(5.7		)	(5.1		)	—			—
Amortization of prior service cost	0.1			0.1			(0.8		)	(0.7		)
Recognized actuarial loss	1.6			2.3			0.4			0.4
Settlements and curtailments	—			0.1			—			—
Net periodic benefit cost (1)	$	1.5		$	2.7		$	(0.3	)	$	(0.3	)

	For the Nine Months Ended September 30,
	2014			2013			2014			2013
	Pension Benefits						Other Benefits
Service cost	$	3.2		$	3.9		$	—		$	—
Interest cost	13.3			12.3			0.1			0.1
Expected return on plan assets	(17.0		)	(15.7		)	—			—
Amortization of prior service cost	0.2			0.3			(2.2		)	(2.2		)
Recognized actuarial loss	4.9			6.9			1.1			1.1
Settlements and curtailments	—			1.3			—			—
Net periodic benefit cost (1)	$	4.6		$	9.0		$	(1.0	)	$	(1.0	)