Retirement Plans (Tables)

3 Months Ended

Mar. 31, 2013

Retirement Plans [Abstract]

Components of Net Periodic Benefit Cost

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

	3 Months Ended March 31,
	Defined Benefit						Retiree Health
	Pension Plans						Care Plan
	2013			2012			2013		2012
Service cost	$	2.2		$	2.6		$	-	$	-
Interest cost		3.1			3.7			0.3		0.3
Expected return on assets		(2.8	)		(3.6	)		-		-
Other		0.9			0.4			0.1		-
Net periodic benefit cost	$	3.4		$	3.1		$	0.4	$	0.3