Note 4 - Investment Securities (Details) (USD $) In Millions, unless otherwise specified	Jun. 01, 2013	Mar. 02, 2013
Note 4 - Investment Securities (Details) [Line Items]
Available-for-sale Securities, Equity Securities, Noncurrent	$ 48.6	$ 49.0
Held-to-maturity Securities, Current	481.8	449.9
Deferred Compensation Plan Assets	32.2	28.3
Auction Rate Securities [Member]
Note 4 - Investment Securities (Details) [Line Items]
Available For Sale Securities Equity Securities At Par Value	51.0	51.0
Available For Sale Securities Temporary Impairment Adjustment Accumulated Other Comprehensive Income Loss	2.4	2.0
Minimum Assets Coverage Ratio To Be Maintained By Funds	200.00%	200.00%
Available-for-sale Securities, Equity Securities, Noncurrent	48.6	49.0
US Treasury Securities [Member]
Note 4 - Investment Securities (Details) [Line Items]
Held-to-maturity Securities, Current	481.8	449.9
Other Trading Investment Securities [Member]
Note 4 - Investment Securities (Details) [Line Items]
Deferred Compensation Plan Assets	$ 32.2	$ 28.3

This element represents the par value of available-for-sale investment securities as of the balance sheet date.

No definition available.

Name:	bbby_AvailableForSaleSecuritiesEquitySecuritiesAtParValue
Namespace Prefix:	bbby_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This element represents the temporary valuation adjustment related to available-for-sale investment securities which is recorded in accumulated other comprehensive (loss) income.

+ References

No definition available.

+ Details

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Namespace Prefix:	bbby_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

This element represents the minimum asset coverage ratio that closed end municipal bond funds are required to maintain pursuant to the Investment Company Act of 1940.

+ References

No definition available.

+ Details

Name:	bbby_MinimumAssetsCoverageRatioToBeMaintainedByFunds
Namespace Prefix:	bbby_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Equity securities categorized neither as held-to-maturity nor trading which are intended be sold more than one year from the balance sheet date or operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 25

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=28360136&loc=d3e22054-111558

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26626-111562

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Carrying amount as of the balance sheet date of assets held under deferred compensation agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.17)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 17

-Article 5

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount after other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity, expected to be converted to cash, sold or exchanged within one year or the normal operating cycle.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26626-111562

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 25

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=28360136&loc=d3e22054-111558

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant