Retirement And Other Benefit Plans (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	May 04, 2013	Apr. 28, 2012
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 2,891	$ 2,986
Interest cost	3,331	3,184
Expected return on assets	(6,179)	(6,279)
Amortization of Actuarial loss (gain)	248	80
Amortization of Prior service expense	2
Amortization of Net transition asset		(11)
Total net periodic benefit cost (income)	293	(40)
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	35	40
Amortization of Actuarial loss (gain)	(20)	(13)
Total net periodic benefit cost (income)	$ 15	$ 27