v2.3.0.11

Pension and Other Postretirement Benefits (Tables)

6 Months Ended

Jun. 30, 2011

Pension and Other Postretirement Benefits

Components of the Plans' Net Periodic Benefits Cost

		Pension Benefits								Other Postretirement Benefits
Three Months Ended June 30, (in millions)		2011				2010				2011				2010
Components of Net Periodic Benefit Cost
Service cost		$	9.4			$	9.8			$	2.5			$	2.4
Interest cost			29.9				31.4				9.6				10.9
Expected return on assets			(41.8	)			(35.9	)			(6.7	)			(5.8	)
Amortization of transition obligation			—				—				0.3				0.3
Amortization of prior service cost			0.1				0.5				(0.1	)			0.8
Recognized actuarial loss			13.9				14.5				1.7				1.5
Total Net Periodic Benefit Costs		$	11.5			$	20.3			$	7.3			$	10.1
		Pension Benefits								Other Postretirement Benefits
Six Months Ended June 30, (in millions)		2011				2010				2011				2010
Components of Net Periodic Benefit Cost
Service cost		$	18.8			$	19.5			$	5.0			$	4.8
Interest cost			59.8				62.8				19.2				21.3
Expected return on assets			(83.6	)			(71.8	)			(13.4	)			(11.7	)
Amortization of transition obligation			—				—				0.6				0.6
Amortization of prior service cost			0.2				1.0				(0.2	)			0.7
Recognized actuarial loss			27.8				29.0				3.4				3.0
Total Net Periodic Benefit Costs		$	23.0			$	40.5			$	14.6			$	18.7

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