Supplemental Cash Flows Information (Summary Of Cash Payments For Interest And Income Taxes And Non-Cash Investing And Financing Activities) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jan. 28, 2012	Jan. 29, 2011	Jan. 30, 2010
Supplemental Cash Flows Information [Abstract]
Cash paid for: Interest on debt	$ 46,691	$ 48,501	$ 30,638
Cash paid for: Income taxes	781,170	787,273	494,169
Changes in accrued expenses due to: Dividends payable	13,018	9,675	3,829
Changes in accrued expenses due to: Property additions	(23,746)	14,568	37,060
Non-cash investing and financing activity: Conversion of zero coupon convertible notes			$ 365,088