Retirement plans and postretirement benefits other than pension (Tables)

3 Months Ended

Mar. 25, 2012

Other Postretirement Benefit Plans, Defined Benefit

Benefit costs

Postretirement benefit costs for health care and life insurance are presented in the following table:

(in thousands of dollars)

	Thirteen Weeks Ended
	Mar. 25, 2012			Mar. 27, 2011
Service cost-benefits earned during the period	$	175		$	175
Interest cost on net benefit obligation		2,050			2,375
Amortization of prior service credit		(4,800	)		(4,875	)
Amortization of actuarial loss		650			1,200
Net periodic postretirement benefit credit	$	(1,925	)	$	(1,125	)

Pension Plans, Defined Benefit

Benefit costs

The Company’s pension costs, which include costs for qualified and nonqualified plans, are presented in the following table:

(in thousands of dollars)

	Thirteen Weeks Ended
	Mar. 25, 2012			Mar. 27, 2011
Service cost-benefits earned during the period	$	2,032		$	2,105
Interest cost on benefit obligation		39,654			42,872
Expected return on plan assets		(47,649	)		(53,099	)
Amortization of prior service cost		1,928			1,875
Amortization of actuarial loss		13,505			9,281
Pension expense for Company-sponsored retirement plans	$	9,470		$	3,034