Retirement Plans

6 Months Ended

Jun. 30, 2012

Retirement Plans [Abstract]

Retirement Plans

(10) Retirement Plans

The components of the net periodic benefit cost for our plans were as follows:

	Defined Benefit Pension Plans
	3 Months Ended						6 Months Ended
	June 30,						June 30,
	2012			2011			2012			2011
Service cost	$	2.6		$	2.7		$	5.2		$	5.3
Interest cost		3.8			3.9			7.5			7.8
Expected return on assets		(3.7	)		(3.9	)		(7.3	)		(7.7	)
Other		0.4			0.1			0.8			0.2
Total benefit cost	$	3.1		$	2.8		$	6.2		$	5.6

	Retiree Health Care Plan
	3 Months Ended				6 Months Ended
	June 30,				June 30,
	2012		2011		2012		2011
Service cost	$	-	$	-	$	-	$	0.1
Interest cost		0.4		0.3		0.7		0.6
Total benefit cost	$	0.4	$	0.3	$	0.7	$	0.7

During the three and six months ended June 30, 2012, contributions made to our pension plans were $4.7 and $9.5, respectively, and contributions made to our retiree health care plan were $0.5 and $1.0, respectively. During 2012, we expect to make total contributions of $20.0 to our pension plans and to fund our retiree health care payments as incurred.