Components of Net Periodic Benefit Cost

6 Months Ended

Jun. 30, 2012

Components of Net Periodic Benefit Cost

Components of Net Periodic Benefit Cost

Note 8 — Components of Net Periodic Benefit Cost

Benefit costs for defined benefit pension plans are shown below.  The funding policy and assumptions disclosed in the Company’s 2011 Annual Report on Form 10-K are expected to continue unchanged throughout 2012.

	Three Months Ended June 30,						Six Months Ended June 30,
(in millions)	2012			2011			2012			2011
Service cost — benefits earned during the period	$	3.7		$	3.4		$	7.3		$	6.8
Interest cost on projected benefit obligation	8.5			8.8			17.0			17.7
Expected return on plan assets	(10.9		)	(10.1		)	(21.8		)	(20.2		)
Amortization of unrecognized transition obligation	—			0.1			0.1			0.1
Amortization of prior service cost	0.4			0.5			0.8			1.1
Recognized actuarial net (gain) or loss	7.0			5.9			14.1			11.7
Settlement loss (gain)	—			(2.5		)	3.1			(2.5		)
Net periodic benefit (income) cost	$	8.7		$	6.1		$	20.6		$	14.7

Costs for defined contribution pension plans were $5.5 million and $10.8 million for the three months and six months ended June 30, 2012 and were $4.8 million and $9.9 million for the three months and six months ended June 30, 2011.  Benefit costs for other post retirement plans were not significant during the periods presented.