Employee Benefit Plans (Benefit Obligations and Plan Assets) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 25, 2020	Oct. 27, 2019	Oct. 28, 2018
Change in projected benefit obligation
Beginning projected benefit obligation	$ 617	$ 524	$ 506
Service cost	13	11	12
Interest cost	8	10	11
Plan participants’ contributions	1	1	1
Actuarial (gain) loss	6	84	24
Settlements	0	(1)	(1)
Foreign currency exchange rate changes	33	(5)	(16)
Benefits paid	(10)	(8)	(12)
Plan amendments and other adjustments	6	1	(1)
Ending projected benefit obligation	674	617	524
Ending accumulated benefit obligation	627	578	490
Change in plan assets
Beginning fair value of plan assets	409	365	361
Return on plan assets	0	30	17
Employer contributions	12	27	11
Plan participants’ contributions	1	1	1
Foreign currency exchange rate changes	19	(5)	(12)
Settlements	0	(1)	(1)
Benefits paid	(10)	(8)	(12)
Ending fair value of plan assets	431	409	365
Funded status	(243)	(208)	(159)
Amounts recognized in the consolidated balance sheets
Noncurrent asset	0	5	19
Current liability	(2)	(1)	(1)
Noncurrent liability	(241)	(212)	(177)
Total	(243)	(208)	(159)
Estimated amortization from accumulated other comprehensive loss into net periodic benefit cost over the next fiscal period
Actuarial loss	14	12	8
Prior service credit	0	0	(1)
Total	14	12	7
Amounts recognized in accumulated other comprehensive loss
Net actuarial loss	242	226	161
Prior service credit	0	0	(2)
Total	242	226	159
Plans with projected benefit obligations in excess of plan assets
Projected benefit obligation	674	424	365
Fair value of plan assets	431	211	186
Plans with accumulated benefit obligations in excess of plan assets
Accumulated benefit obligation	627	385	331
Fair value of plan assets	$ 431	$ 211	$ 186
Minimum
Range of assumptions to determine benefit obligations
Discount rate	0.40%	0.50%	0.60%
Rate of compensation increase	2.30%	2.30%	2.40%
Maximum
Range of assumptions to determine benefit obligations
Discount rate	6.50%	3.10%	3.10%
Rate of compensation increase	10.00%	3.60%	3.50%