Borrowing Facilities and Debt (Debt Outstanding) (Details) - USD ($) $ in Millions	Oct. 27, 2019	Oct. 28, 2018
Schedule of debt
Current portion of long-term debt	$ 600	$ 0
Long-term debt principal amount	4,800	5,400
Long-term debt	4,713	5,309
Total long-term debt	5,313	5,309
Senior Notes
Schedule of debt
Long-term debt principal amount	4,750	5,350
Total unamortized discount	(10)	(11)
Total unamortized debt issuance costs	$ (27)	(30)
Senior Notes \| 2.625% Senior Notes Due 2020
Debt Instrument [Line Items]
Stated interest rate	2.625%
Schedule of debt
Current portion of long-term debt	$ 600	0
Long-term debt principal amount	$ 0	600
Effective interest rate	2.64%
Senior Notes \| 4.300% Senior Notes Due 2021
Debt Instrument [Line Items]
Stated interest rate	4.30%
Schedule of debt
Long-term debt principal amount	$ 750	750
Effective interest rate	4.326%
Senior Notes \| 3.900% Senior Notes Due 2025
Debt Instrument [Line Items]
Stated interest rate	3.90%
Schedule of debt
Long-term debt principal amount	$ 700	700
Effective interest rate	3.944%
Senior Notes \| 3.300% Senior Notes Due 2027
Debt Instrument [Line Items]
Stated interest rate	3.30%
Schedule of debt
Long-term debt principal amount	$ 1,200	1,200
Effective interest rate	3.342%
Senior Notes \| 5.100% Senior Notes Due 2035
Debt Instrument [Line Items]
Stated interest rate	5.10%
Schedule of debt
Long-term debt principal amount	$ 500	500
Effective interest rate	5.127%
Senior Notes \| 5.850% Senior Notes Due 2041
Debt Instrument [Line Items]
Stated interest rate	5.85%
Schedule of debt
Long-term debt principal amount	$ 600	600
Effective interest rate	5.879%
Senior Notes \| 4.350% Senior Notes Due 2047
Debt Instrument [Line Items]
Stated interest rate	4.35%
Schedule of debt
Long-term debt principal amount	$ 1,000	$ 1,000
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.

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