Borrowing Facilities and Debt (Details) - USD ($) $ in Millions	Jan. 28, 2018	Oct. 29, 2017
Debt Instrument [Line Items]
Total long-term debt	$ 5,305	$ 5,304
Total debt	5,305	5,304
Senior Notes
Debt Instrument [Line Items]
Long-term debt, principal amount	5,350	5,350
Total unamortized discount	(12)	(12)
Total unamortized debt issuance costs	(33)	(34)
Senior Notes \| 2.625% Senior Notes Due 2020
Debt Instrument [Line Items]
Long-term debt, principal amount	$ 600	600
Stated interest rate (as percent)	2.625%
Effective Interest Rate	2.64%
Senior Notes \| 4.300% Senior Notes Due 2021
Debt Instrument [Line Items]
Long-term debt, principal amount	$ 750	750
Stated interest rate (as percent)	4.30%
Effective Interest Rate	4.326%
Senior Notes \| 3.900% Senior Notes Due 2025
Debt Instrument [Line Items]
Long-term debt, principal amount	$ 700	700
Stated interest rate (as percent)	3.90%
Effective Interest Rate	3.944%
Senior Notes \| 3.300% Senior Notes Due 2027
Debt Instrument [Line Items]
Long-term debt, principal amount	$ 1,200	1,200
Stated interest rate (as percent)	3.30%
Effective Interest Rate	3.342%
Senior Notes \| 5.100% Senior Notes Due 2035
Debt Instrument [Line Items]
Long-term debt, principal amount	$ 500	500
Stated interest rate (as percent)	5.10%
Effective Interest Rate	5.127%
Senior Notes \| 5.850% Senior Notes Due 2041
Debt Instrument [Line Items]
Long-term debt, principal amount	$ 600	600
Stated interest rate (as percent)	5.85%
Effective Interest Rate	5.879%
Senior Notes \| 4.350% Senior Notes Due 2047
Debt Instrument [Line Items]
Long-term debt, principal amount	$ 1,000	$ 1,000
Stated interest rate (as percent)	4.35%
Effective Interest Rate	4.361%

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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

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Amount, after accumulated amortization, of debt discount.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28541-108399

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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