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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Balance Type:	na
Period Type:	instant

- Definition

The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585

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Balance Type:	debit
Period Type:	duration

- Definition

[Line Items] for Schedule of Fiscal Year 2020 Debt Issuances [Table]

+ References

No definition available.

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Long-term Debt Schedule of Fiscal Year 2020 Debt Issuances (Details) - USD ($) $ in Millions		3 Months Ended
	Apr. 23, 2019	Apr. 30, 2019	Apr. 30, 2018
Schedule of Fiscal Year 2020 Debt Issuances [Line Items]
Proceeds from issuance of long-term debt		$ 3,978	$ 0
2.850% Debt Issuance, Due 2024 [Domain] \| Unsecured Debt [Member]
Schedule of Fiscal Year 2020 Debt Issuances [Line Items]
Debt instrument, principal amount	$ 1,500
Debt instrument, interest rate	2.85%
Proceeds from issuance of long-term debt	$ 1,493
3.050% Debt Issuance, Due 2026 [Domain] \| Unsecured Debt [Member]
Schedule of Fiscal Year 2020 Debt Issuances [Line Items]
Debt instrument, principal amount	$ 1,250
Debt instrument, interest rate	3.05%
Proceeds from issuance of long-term debt	$ 1,242
3.250% Debt Issuance, Due 2029 [Domain] \| Unsecured Debt [Member]
Schedule of Fiscal Year 2020 Debt Issuances [Line Items]
Debt instrument, principal amount	$ 1,250
Debt instrument, interest rate	3.25%
Proceeds from issuance of long-term debt	$ 1,243