Pension and Other Postemployment Benefit (OPEB) Plans (Tables)

6 Months Ended

Jun. 30, 2012

Pension and Other Postemployment Benefit Plans [Abstract]

Components of net periodic expense of Pension and OPEB plans

The following tables present the components of net periodic expense (benefit) of the Company’s Pension and Postretirement plans:

	Pension Benefits						Other Benefits
	Three Months Ended June  30,						Three Months Ended June  30,
(In Millions)	2012			2011			2012			2011
Service cost	$	0.5		$	0.5		$	0.1		$	0.2
Interest cost		1.8			2.0			0.2			0.2
Expected return on plan assets		(2.0	)		(2.1	)		(0.1	)		0.0
Amortization of net loss (gain)		0.7			0.3			(3.3	)		(2.4	)
Curtailment (gain)		0.0			0.0			(45.0	)		0.0
Net periodic expense (benefit)	$	1.0		$	0.7		$	(48.1	)	$	(2.0	)

	Pension Benefits						Other Benefits
	Six Months Ended June  30,						Six Months Ended June  30,
(In Millions)	2012			2011			2012			2011
Service cost	$	1.1		$	1.0		$	0.1		$	0.4
Interest cost		3.5			4.0			0.3			0.4
Expected return on plan assets		(4.1	)		(4.2	)		(0.1	)		0.0
Amortization of net loss (gain)		1.4			0.6			(5.7	)		(4.8	)
Curtailment (gain)		0.0			0.0			(45.0	)		0.0
Net periodic expense (benefit)	$	1.9		$	1.4		$	(50.4	)	$	(4.0	)