Fair Value Measurements - Assets Measured at Fair Value (Details) - USD ($) $ in Millions	Jul. 27, 2025	Oct. 27, 2024	Jul. 28, 2024
Assets:
Restricted cash equivalents included in deferred income taxes and other assets	$ 70		$ 90
Money market funds
Assets:
Restricted cash equivalents included in deferred income taxes and other assets	70	$ 91
Bank certificates of deposit and time deposits
Assets:
Available-for-sale debt security investments	6	13
U.S. Treasury and agency securities
Assets:
Available-for-sale debt security investments	1,579	1,304
Non-U.S. government securities
Assets:
Available-for-sale debt security investments	5	5
Municipal securities
Assets:
Available-for-sale debt security investments	467	441
Commercial paper, corporate bonds and medium-term notes
Assets:
Available-for-sale debt security investments	834	805
Asset-backed and mortgage-backed securities
Assets:
Available-for-sale debt security investments	623	654
Publicly traded equity securities
Assets:
Equity investments with readily determinable values	1,903	723
Recurring Fair Value Measurements
Assets:
Available-for-sale debt security investments	7,531	10,022
Equity investments with readily determinable values	1,903	723
Total	9,434	10,745
Recurring Fair Value Measurements | Money market funds
Assets:
Available-for-sale debt security investments	994	3,512
Recurring Fair Value Measurements | Bank certificates of deposit and time deposits
Assets:
Available-for-sale debt security investments	66	103
Recurring Fair Value Measurements | U.S. Treasury and agency securities
Assets:
Available-for-sale debt security investments	2,693	2,698
Recurring Fair Value Measurements | Non-U.S. government securities
Assets:
Available-for-sale debt security investments	5	5
Recurring Fair Value Measurements | Municipal securities
Assets:
Available-for-sale debt security investments	501	460
Recurring Fair Value Measurements | Commercial paper, corporate bonds and medium-term notes
Assets:
Available-for-sale debt security investments	2,649	2,590
Recurring Fair Value Measurements | Asset-backed and mortgage-backed securities
Assets:
Available-for-sale debt security investments	623	654
Recurring Fair Value Measurements | Publicly traded equity securities
Assets:
Equity investments with readily determinable values	1,903	723
Recurring Fair Value Measurements | Level 1
Assets:
Available-for-sale debt security investments	3,494	6,196
Equity investments with readily determinable values	1,903	723
Total	5,397	6,919
Recurring Fair Value Measurements | Level 1 | Money market funds
Assets:
Available-for-sale debt security investments	994	3,512
Recurring Fair Value Measurements | Level 1 | Bank certificates of deposit and time deposits
Assets:
Available-for-sale debt security investments	0	0
Recurring Fair Value Measurements | Level 1 | U.S. Treasury and agency securities
Assets:
Available-for-sale debt security investments	2,500	2,684
Recurring Fair Value Measurements | Level 1 | Non-U.S. government securities
Assets:
Available-for-sale debt security investments	0	0
Recurring Fair Value Measurements | Level 1 | Municipal securities
Assets:
Available-for-sale debt security investments	0	0
Recurring Fair Value Measurements | Level 1 | Commercial paper, corporate bonds and medium-term notes
Assets:
Available-for-sale debt security investments	0	0
Recurring Fair Value Measurements | Level 1 | Asset-backed and mortgage-backed securities
Assets:
Available-for-sale debt security investments	0	0
Recurring Fair Value Measurements | Level 1 | Publicly traded equity securities
Assets:
Equity investments with readily determinable values	1,903	723
Recurring Fair Value Measurements | Level 2
Assets:
Available-for-sale debt security investments	4,037	3,826
Equity investments with readily determinable values	0	0
Total	4,037	3,826
Recurring Fair Value Measurements | Level 2 | Money market funds
Assets:
Available-for-sale debt security investments	0	0
Recurring Fair Value Measurements | Level 2 | Bank certificates of deposit and time deposits
Assets:
Available-for-sale debt security investments	66	103
Recurring Fair Value Measurements | Level 2 | U.S. Treasury and agency securities
Assets:
Available-for-sale debt security investments	193	14
Recurring Fair Value Measurements | Level 2 | Non-U.S. government securities
Assets:
Available-for-sale debt security investments	5	5
Recurring Fair Value Measurements | Level 2 | Municipal securities
Assets:
Available-for-sale debt security investments	501	460
Recurring Fair Value Measurements | Level 2 | Commercial paper, corporate bonds and medium-term notes
Assets:
Available-for-sale debt security investments	2,649	2,590
Recurring Fair Value Measurements | Level 2 | Asset-backed and mortgage-backed securities
Assets:
Available-for-sale debt security investments	623	654
Recurring Fair Value Measurements | Level 2 | Publicly traded equity securities
Assets:
Equity investments with readily determinable values	$ 0	$ 0