Number of uncommitted lines of credit maintained by the reporting entity as of the balance sheet date.

No definition available.

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

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-Topic 835

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-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ 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 210.5-02.22(a)(1))

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+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ 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 210.5-02.22(a)(2))

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+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

For an unclassified balance sheet, the amount as of the balance sheet date of capitalized costs associated with the issuance of debt instruments (for example, legal, accounting, underwriting, printing, and registration costs) that will be charged against earnings over the life of the debt instruments to which such costs pertain. Such amount is before the consideration of accumulated amortization.

+ References

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

-Publisher FASB

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-Topic 835

-SubTopic 30

-Section 45

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28555-108399

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of the cost of borrowed funds accounted for as interest expense.

+ References

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-Name Accounting Standards Codification

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-SubTopic 20

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-Topic 942

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-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-04.9)

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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ 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 210.5-02.19(b),22(b))

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

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-Topic 230

-SubTopic 10

-Section 45

-Paragraph 14

-Subparagraph (b)

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-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(f))

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+ Details

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

- Details

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- Details

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Balance Type:
Period Type:

- Details

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- Details

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Balance Type:
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- Details

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- Details

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Note 6 - Long Term Debt (Details Textual)			3 Months Ended	6 Months Ended
Note 6 - Long Term Debt (Details Textual)	Aug. 06, 2014 USD ($)	Jul. 17, 2014 USD ($)	Aug. 29, 2015 USD ($)	Aug. 29, 2015 USD ($)
Senior Unsecured Notes [Member] \| The 2024 Notes [Member]
Debt Instrument, Maturity Date		Aug. 01, 2024
Debt Instrument, Face Amount		$ 300,000,000
Debt Instrument, Interest Rate, Stated Percentage		3.749%
Senior Unsecured Notes [Member] \| The 2034 Notes [Member]
Debt Instrument, Maturity Date		Aug. 01, 2034
Debt Instrument, Face Amount		$ 300,000,000
Debt Instrument, Interest Rate, Stated Percentage		4.915%
Senior Unsecured Notes [Member] \| The 2044 Notes [Member]
Debt Instrument, Maturity Date		Aug. 01, 2044
Debt Instrument, Face Amount		$ 900,000,000
Debt Instrument, Interest Rate, Stated Percentage		5.165%
Revolver [Member] \| Revolving Credit Facility [Member]
Proceeds from Lines of Credit			$ 0	$ 0
Line of Credit Facility, Maximum Borrowing Capacity	$ 250,000,000
Debt Instrument, Term	5 years
Senior Unsecured Notes [Member] \| Other Assets [Member]
Deferred Finance Costs, Gross			10,100,000	10,100,000
Senior Unsecured Notes [Member]
Interest Expense			18,100,000	36,800,000
Uncommitted Line of Credit, Expiration Date of August 31, 2016 [Member]
Proceeds from Lines of Credit			0
Line of Credit Facility, Maximum Borrowing Capacity			100,000,000	100,000,000
Uncommitted Line of Credit Expiration Date of February 28, 2016 [Member]
Proceeds from Lines of Credit			0
Line of Credit Facility, Maximum Borrowing Capacity			$ 100,000,000	$ 100,000,000
Line of Credit Facility, Number Maintained			2	2