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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

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- 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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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

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Schedule of Fiscal Year 2016 and 2015 Debt Maturities (Details) ¥ in Millions, $ in Millions										12 Months Ended
	Oct. 25, 2015 USD ($)	Jul. 28, 2015 USD ($)	Jul. 08, 2015 USD ($)	Jul. 01, 2015 USD ($)	Apr. 01, 2015 USD ($)	Aug. 06, 2014 USD ($)	May. 15, 2014 USD ($)	Apr. 14, 2014 USD ($)	Feb. 03, 2014 USD ($)	Jan. 31, 2016 USD ($)	Jan. 31, 2015 USD ($)	Jan. 31, 2014 USD ($)	Jul. 28, 2015 JPY (¥)	Aug. 06, 2014 JPY (¥)
Debt Instrument [Line Items]
Repayments of Long-term Debt										$ 4,432	$ 3,904	$ 4,968
Unsecured debt
Debt Instrument [Line Items]
Repayments of Long-term Debt										$ 4,230	$ 3,475
Unsecured debt \| 2.875% Fixed Rate Debt, Due 2015 [Member]
Debt Instrument [Line Items]
Principal Amount					$ 750
Interest Rate					2.875%
Repayments of Long-term Debt					$ 750
Unsecured debt \| 4.500% Fixed Rate Debt, Due 2015 [Member]
Debt Instrument [Line Items]
Principal Amount				$ 750
Interest Rate				4.50%
Repayments of Long-term Debt				$ 750
Unsecured debt \| 2.250% Fixed Rate Debt, Due 2015 [Member]
Debt Instrument [Line Items]
Principal Amount			$ 750
Interest Rate			2.25%
Repayments of Long-term Debt			$ 750
Unsecured debt \| Variable Rate Debt, Due 2015 [Member]
Debt Instrument [Line Items]
Principal Amount \| ¥													¥ 30,000
Repayments of Long-term Debt		$ 243
Unsecured debt \| .940% Fixed Rate Debt, Due 2015 [Member]
Debt Instrument [Line Items]
Principal Amount \| ¥													¥ 60,000
Interest Rate													0.94%
Repayments of Long-term Debt		$ 487
Unsecured debt \| 1.500% Fixed Rate Debt, Due 2015 [Member]
Debt Instrument [Line Items]
Principal Amount	$ 1,250
Interest Rate	1.50%
Repayments of Long-term Debt	$ 1,250
Unsecured debt \| 3.000% Fixed Rate Debt, Due 2014 [Member]
Debt Instrument [Line Items]
Principal Amount									$ 500
Interest Rate									3.00%
Repayments of Long-term Debt									$ 500
Unsecured debt \| 1.625% Fixed Rate Debt, Due 2014 [Member]
Debt Instrument [Line Items]
Principal Amount								$ 1,000
Interest Rate								1.625%
Repayments of Long-term Debt								$ 1,000
Unsecured debt \| 3.200% Fixed Rate Debt, Due 2014 [Member]
Debt Instrument [Line Items]
Principal Amount							$ 1,000
Interest Rate							3.20%
Repayments of Long-term Debt							$ 1,000
Unsecured debt \| 1.490% Fixed Rate Debt, Due 2014 [Member]
Debt Instrument [Line Items]
Principal Amount \| ¥														¥ 83,100
Interest Rate														1.49%
Repayments of Long-term Debt						$ 810
Unsecured debt \| Variable Rate Debt, Due 2014 [Member]
Debt Instrument [Line Items]
Principal Amount \| ¥														¥ 16,900
Repayments of Long-term Debt						$ 165