Borrowing Facilities and Debt (Details) - USD ($) $ in Millions	Apr. 30, 2017	Oct. 30, 2016
Debt Instrument [Line Items]
Notes payable, short-term	$ 200	$ 200
Total long-term debt	5,302	3,125
Total debt	5,502	3,325
Senior Notes
Debt Instrument [Line Items]
Long-term debt, principal amount	5,350	3,150
Total unamortized discount	(13)	(7)
Total unamortized debt issuance costs 1	(35)	(18)
Senior Notes \| 7.125% Unsecured Senior Notes Due 2017
Debt Instrument [Line Items]
Notes payable, short-term	$ 200	200
Stated interest rate (as percent)	7.125%
Effective Interest Rate	7.19%
Senior Notes \| 2.625% Unsecured 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% Unsecured 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% Unsecured 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% Unsecured Senior Notes Due 2027
Debt Instrument [Line Items]
Long-term debt, principal amount	$ 1,200	0
Stated interest rate (as percent)	3.30%
Effective Interest Rate	3.342%
Senior Notes \| 5.100% Unsecured 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% Unsecured 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% Unsecured Senior Notes Due 2047
Debt Instrument [Line Items]
Long-term debt, principal amount	$ 1,000	$ 0
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

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-Name Accounting Standards Codification
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Amount, after accumulated amortization, of debt discount.

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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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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.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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