Employee Benefit Plans (Net Periodic Benefit Costs) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 27, 2019	Oct. 28, 2018	Oct. 29, 2017
Components of net periodic benefit cost
Service cost	$ 11	$ 12	$ 13
Interest cost	10	11	10
Expected return on plan assets	(20)	(20)	(18)
Amortization of actuarial loss and prior service credit	7	3	(10)
Settlement and curtailment loss	0	0	0
Net periodic benefit cost (income)	$ 8	$ 6	$ (5)
Weighted average assumptions
Discount rate	1.98%	2.16%	1.88%
Expected long-term return on assets	5.40%	5.41%	5.38%
Rate of compensation increase	2.74%	2.66%	2.69%