Employee Benefits Employee Benefits (Tables)

6 Months Ended

Jun. 30, 2012

Compensation and Retirement Disclosure [Abstract]

Schedule of Costs of Retirement Plans [Table Text Block]

The following table sets forth the components of our company-sponsored pension costs for the three and six months ended June 30:

	Three months						Six Months
(in millions)	2012			2011			2012			2011
Service cost	$	1.0		$	0.9		$	1.9		$	1.8
Interest cost	14.8			15.3			29.7			30.6
Expected return on plan assets	(11.6		)	(10.7		)	(23.2		)	(21.5		)
Amortization of net loss	2.9			2.4			5.8			4.8
Total periodic pension cost	$	7.1		$	7.9		$	14.2		$	15.7