Retirement And Other Benefit Plans Retirement and Other Benefit Plans (Schedule of Net Periodic Benefit (Income) Cost) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 30, 2016	Jan. 31, 2015	Feb. 01, 2014
Pension Benefits
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	$ 12,639	$ 9,650	$ 10,638
Interest cost	14,321	14,230	13,241
Expected return on assets	(31,682)	(24,757)	(24,773)
Amortization of actuarial loss (gain)	604	201	954
Amortization of prior service cost	(1,906)	27	13
Defined Benefit Plan, Curtailments	(184)	0	0
Total net periodic benefit (income) cost	(6,208)	(649)	73
Other Postretirement Benefits
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	0	0	0
Interest cost	56	49	55
Expected return on assets	0	0	0
Amortization of actuarial loss (gain)	(220)	(432)	(351)
Amortization of prior service cost	0	0	0
Defined Benefit Plan, Curtailments	0	0	0
Total net periodic benefit (income) cost	$ (164)	$ (383)	$ (296)