Retirement Benefits

3 Months Ended

Mar. 31, 2012

Note 7. Retirement Benefits

The components of the net periodic benefit costs for the three months ended March 31 are as follows:

							Other
	Pension Benefits						Postretirement Benefits
	2012			2011			2012			2011
	(Dollars in thousands)

Service cost	$	3,724		$	3,770		$	227		$	259
Interest cost		6,909			7,170			569			657
Expected return on plan assets		(10,512	)		(10,214	)		-			-
Amortization of prior service cost (credit)		476			511			(654	)		(642	)
Amortization of actuarial losses		3,088			1,992			89			142
Net periodic benefit cost	$	3,685		$	3,229		$	231		$	416

As previously disclosed in our consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2011, there are no significant minimum required contributions to our pension plans in 2012. In March and April 2012, we made voluntary contributions to our domestic pension benefit plans of $30.0 million and $46.0 million, respectively.

- Definition

The entire disclosure for pension and other postretirement benefits.

+ References

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