Summary of Significant Accounting Policies and Related Matters (Details Textual) $ / shares in Units, shares in Millions	3 Months Ended								9 Months Ended	12 Months Ended			171 Months Ended
	Feb. 29, 2020 USD ($) $ / shares	Nov. 30, 2019 USD ($) $ / shares	Aug. 31, 2019 USD ($) $ / shares	Jun. 01, 2019 USD ($) $ / shares	Mar. 02, 2019 USD ($) $ / shares	Dec. 01, 2018 USD ($) $ / shares	Sep. 01, 2018 USD ($) $ / shares	Jun. 02, 2018 USD ($) $ / shares	Feb. 29, 2020 USD ($)	Feb. 29, 2020 USD ($) day segment $ / shares shares	Mar. 02, 2019 USD ($) $ / shares shares	Mar. 03, 2018 USD ($) $ / shares shares	Mar. 02, 2019 USD ($)	Mar. 03, 2019 USD ($)	Mar. 04, 2018 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of operating segments | segment										2
(Benefit) provision for income taxes	$ (31,162,000)	$ (8,385,000)	$ (59,835,000)	$ (51,655,000)	$ (58,382,000)	$ 2,468,000	$ 15,608,000	$ 20,921,000		$ (151,037,000)	$ (19,385,000)	$ 270,802,000
Net cash used in operating activities										590,941,000	918,278,000	859,689,000
Cumulative adjustment decreasing opening balance of retained earnings														$ 40,700,000	$ 4,221,000
Operating lease assets	2,006,966,000								$ 2,006,966,000	2,006,966,000
Operating lease liabilities	2,281,788,000								2,281,788,000	$ 2,281,788,000
Number of business days | day										5
Credit and debit card receivables, at carrying value	79,700,000				92,900,000				79,700,000	$ 79,700,000	92,900,000		$ 92,900,000
Remaining maturity period										1 year
Auction rate securities interval period, one										7 days
Auction rate securities interval period, two										28 days
Auction rate securities interval period, three										35 days
Cost of repairs and maintenance										$ 133,900,000	132,400,000	125,700,000
Non-cash pre-tax impairment charge										75,100,000	23,000,000.0	0
Indefinite-lived intangible assets	91,200,000				$ 143,800,000				91,200,000	91,200,000	143,800,000		143,800,000
Stock repurchase program, authorized amount	11,950,000,000								11,950,000,000	11,950,000,000
Payments for repurchase of common stock										$ 99,710,000	$ 148,073,000	$ 252,433,000	10,700,000,000
Treasury stock acquired (in shares) | shares										6.8	9.1	8.0
Remaining authorized repurchase amount	$ 1,200,000,000								1,200,000,000	$ 1,200,000,000
Payments of cash dividends										$ 85,482,000	$ 86,287,000	$ 80,877,000
Dividends declared per share (in dollars per share) | $ / shares	$ 0.170	$ 0.170	$ 0.170	$ 0.170	$ 0.160	$ 0.160	$ 0.160	$ 0.160		$ 0.68	$ 0.64	$ 0.60
Fair value of long-term debt	$ 1,126,000,000								1,126,000,000	$ 1,126,000,000
Total long-term debt	1,495,000,000								1,495,000,000	1,495,000,000
Net sales for gift card and merchandise credit redemptions										121,900,000	$ 126,300,000
Liability for estimated returns	71,600,000				$ 90,400,000				71,600,000	71,600,000	90,400,000		90,400,000
Right of return asset for merchandise, percentage	42,500,000				53,400,000				42,500,000	42,500,000	53,400,000		53,400,000
Cooperative advertising amount										30,900,000	37,000,000.0	$ 38,500,000
Advertising expense										$ 478,500,000	$ 463,200,000	$ 444,400,000
Shares excluded from computation of earnings per share (in shares) | shares										5.4	8.2	8.0
Other noncurrent assets	$ 506,280,000				396,416,000				$ 506,280,000	$ 506,280,000	$ 396,416,000		396,416,000
Restricted cash					$ 21,000,000						$ 21,000,000		$ 21,000,000
Minimum [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lease initial terms	12 months	10 years							12 months	12 months
Operating lease liabilities														2,200,000,000
Maximum [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lease initial terms		15 years
Operating lease assets														2,000,000,000.0
Building [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Estimated useful life (in years)										40 years
Furniture, Fixtures and Equipment [Member] | Minimum [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Estimated useful life (in years)										5 years
Furniture, Fixtures and Equipment [Member] | Maximum [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Estimated useful life (in years)										20 years
Computer Equipment and Software [Member] | Minimum [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Estimated useful life (in years)										3 years
Computer Equipment and Software [Member] | Maximum [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Estimated useful life (in years)										10 years
Domestic Merchandise [Member] | Revenue from Contract with Customer Benchmark [Member] | Product Concentration Risk [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Percentage of net sales										35.20%	35.40%	35.50%
Home Furnishings [Member] | Revenue from Contract with Customer Benchmark [Member] | Product Concentration Risk [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Percentage of net sales										64.80%	64.60%	64.50%
Institutional Sales [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Goodwill impairment charge									$ 40,100,000		$ 40,100,000
North American Retail [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Goodwill impairment charge									$ 676,200,000	$ 391,100,000	285,100,000
Trade Names [Member] | North American Retail [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Intangible asset impairment charge										$ 41,800,000	$ 161,700,000
Retained Earnings [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative adjustment decreasing opening balance of retained earnings														$ 40,700,000	$ 4,221,000