Cash, Cash Equivalents and Investments (Details) - USD ($) $ in Millions	Jul. 30, 2017	Oct. 30, 2016
Contractual maturities of investments
Due in one year or less, Cost	$ 1,927
Due after one through five years, Cost	593
No single maturity date, Cost	416
Short-term and long-term investments, Cost	2,936	$ 1,230
Due in one year or less, Estimated Fair Value	1,927
Due after one through five years, Estimated Fair Value	593
No single maturity date, Estimated Fair Value	492
Investments maturities, Estimated Fair Value	$ 3,012	$ 1,272