CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Oct. 28, 2011	Oct. 29, 2010
Cash flows from operating activities:
Net income	$ 474,175	$ 405,311
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	204,771	189,739
Deferred income taxes	23,977	31,620
Tax benefit of stock options	(16,101)	(6,413)
Loss on debt retirement, net	60,303	14,576
Non-cash share-based compensation	10,969	11,620
Other non-cash gains and losses	31,656	7,920
Change in operating assets and liabilities:
Merchandise inventories	(350,932)	(366,903)
Prepaid expenses and other current assets	(30,899)	(26,412)
Accounts payable	164,336	146,933
Accrued expenses and other	89,993	1,091
Income taxes	(57,575)	(4,178)
Other	(174)	(1,108)
Net cash provided by operating activities	604,499	403,796
Cash flows from investing activities:
Purchases of property and equipment	(363,099)	(259,243)
Proceeds from sale of property and equipment	729	868
Net cash used in investing activities	(362,370)	(258,375)
Cash flows from financing activities:
Issuance of common stock	177	599
Repayments of long-term obligations	(911,708)	(130,654)
Borrowings under revolving credit agreement	1,485,000
Repayments of borrowings under revolving credit agreement	(1,197,200)
Repurchases of common stock and settlement of equity awards, net of employee taxes paid	(13,365)	(5,949)
Tax benefit of stock options	16,101	6,413
Net cash used in financing activities	(620,995)	(129,591)
Net increase (decrease) in cash and cash equivalents	(378,866)	15,830
Cash and cash equivalents, beginning of period	497,446	222,076
Cash and cash equivalents, end of period	118,580	237,906
Supplemental schedule of non-cash investing and financing activities:
Purchases of property and equipment awaiting processing for payment, included in Accounts payable	$ 44,225	$ 24,046