Pension and Post retirement Plans (Tables)

6 Months Ended

Jun. 30, 2011

Pension and Post-retirement Plans [Abstract]

Components of Net Periodic Benefit Cost

The components of net periodic benefit cost recorded for the second quarters of 2011 and 2010 were as follows (in millions):

	Pension Benefits						Post-retirement Benefits
	2011			2010			2011		2010
Service cost	$	2.1		$	1.8		$	0.3	$	0.3
Interest cost		5.0			4.8			1.0		0.8
Expected return on plan assets		(5.7	)		(5.3	)		--		--
Amortization of prior service cost		0.2			0.1			0.1		0.1
Amortization of net loss		2.3			1.4			0.5		--
Net periodic benefit cost	$	3.9		$	2.8		$	1.9	$	1.2

The components of net periodic benefit cost recorded for the first half of 2011 and 2010 were as follows (in millions):

	Pension Benefits						Post-retirement Benefits
	2011			2010			2011		2010
Service cost	$	4.4		$	3.9		$	0.6	$	0.5
Interest cost		10.0			9.7			1.9		1.6
Expected return on plan assets		(11.4	)		(10.3	)		--		--
Amortization of prior service cost		0.4			0.3			0.2		0.2
Amortization of net loss		4.4			4.1			1.0		0.1
Net periodic benefit cost	$	7.8		$	7.7		$	3.7	$	2.4