Pension and Other Post-Retirement Benefits (Tables)

6 Months Ended

Jun. 30, 2013

Compensation and Retirement Disclosure [Abstract]

Components of pension and other post retirement benefit costs

The following table shows the components of our pension and other post-retirement benefit expense for the three months ended June 30, 2013 and 2012 (in millions):



	2013 Pension Benefits			2012 Pension Benefits			2013 Retiree Health and Life			2012 Retiree Health and Life
Service cost	$	1.6		$	1.5		$	—		$	—
Interest cost	4.6			5.0			0.4			0.5
Expected return on plan assets	(6.9		)	(7.4		)	—			—
Amortization of (a):
Unrecognized prior service credit	(0.2		)	(0.2		)	(0.1		)	(0.1		)
Unrecognized net actuarial loss (gain)	4.0			2.5			(0.1		)	(0.1		)
Net expense	$	3.1		$	1.4		$	0.2		$	0.3

- Definition

Tabular disclosure of pension and other postretirement benefit arrangements with individual employees, which are generally based on employment contracts between the entity and one or more selected officers or key employees, and which contain a promise by the employer to pay certain amounts at designated future dates, usually including a period after retirement, upon compliance with stipulated requirements. This type of arrangement is distinguished from broader based employee benefit plans as it is usually tailored to the employee. Disclosure also typically includes the amount of related compensation expense recognized during the reporting period and the carrying amount as of the balance sheet date of the related liability.

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