Pension and Postretirement Benefits (Tables)

3 Months Ended

Apr. 01, 2012

Pension and Postretirement Benefits (Thousands of Dollars) [Abstract]

Components of net periodic cost

	Pension		Postretirement
	------------------		------------------
	2012	2011	2012	2011
	-------	-------	-------	-------
Service cost	$ 1,198	1,079	184	171
Interest cost	5,494	5,223	440	440
Expected return on assets	(5,671)	(6,249)	-	-
Net amortization and deferrals	1,908	1,295	20	18
	--------	--------	--------	--------
Net periodic benefit cost	$ 2,929	1,348	644	629
	=====	=====	=====	=====