Cash, Cash Equivalents and Investments - Summary of Cash, Cash Equivalents and Investments (Details) - USD ($) $ in Millions	Jul. 27, 2025	Oct. 27, 2024	Jul. 28, 2024
Summary of Cash, Cash Equivalents and Investments
Cash	$ 1,437	$ 1,313
Total cash equivalents	3,947	6,709
Total cash and cash equivalents	5,384	8,022	$ 8,288
Total equity investments, cost	1,753	798
Total equity investments, gross unrealized gains	536	243
Total equity investments, gross unrealized losses	40	27
Total equity investments, estimated fair value	2,249	1,014
Total short-term and long-term investments cost	5,261	4,022
Total short-term and long-term investments, gross unrealized gains	546	252
Total short-term and long-term investments ,gross unrealized losses	44	38
Total short-term and long-term investments, estimated fair value	5,763	4,236
Total cash, cash equivalents and investments, cost	10,645	12,044
Total cash, cash equivalents and investments, gross unrealized gains	546	252
Total cash, cash equivalents and investments, gross unrealized losses	44	38
Total cash, cash equivalents and investments, estimated fair value	11,147	12,258
Restricted cash equivalents included in deferred income taxes and other assets	70		$ 90
Total fixed income securities
Summary of Cash, Cash Equivalents and Investments
Cost of fixed income securities	3,508	3,224
Gross unrealized gains on fixed income securities	10	9
Gross unrealized losses on fixed income securities	4	11
Estimated fair value of fixed income securities	3,514	3,222
Bank certificates of deposit and time deposits
Summary of Cash, Cash Equivalents and Investments
Cost of fixed income securities	6	13
Gross unrealized gains on fixed income securities	0	0
Gross unrealized losses on fixed income securities	0	0
Estimated fair value of fixed income securities	6	13
U.S. Treasury and agency securities
Summary of Cash, Cash Equivalents and Investments
Cost of fixed income securities	1,578	1,306
Gross unrealized gains on fixed income securities	1	0
Gross unrealized losses on fixed income securities	0	2
Estimated fair value of fixed income securities	1,579	1,304
Non-U.S. government securities
Summary of Cash, Cash Equivalents and Investments
Cost of fixed income securities	5	5
Gross unrealized gains on fixed income securities	0	0
Gross unrealized losses on fixed income securities	0	0
Estimated fair value of fixed income securities	5	5
Municipal securities
Summary of Cash, Cash Equivalents and Investments
Cost of fixed income securities	465	441
Gross unrealized gains on fixed income securities	3	2
Gross unrealized losses on fixed income securities	1	2
Estimated fair value of fixed income securities	467	441
Commercial paper, corporate bonds and medium-term notes
Summary of Cash, Cash Equivalents and Investments
Cost of fixed income securities	831	803
Gross unrealized gains on fixed income securities	4	4
Gross unrealized losses on fixed income securities	1	2
Estimated fair value of fixed income securities	834	805
Asset-backed and mortgage-backed securities
Summary of Cash, Cash Equivalents and Investments
Cost of fixed income securities	623	656
Gross unrealized gains on fixed income securities	2	3
Gross unrealized losses on fixed income securities	2	5
Estimated fair value of fixed income securities	623	654
Publicly traded equity securities
Summary of Cash, Cash Equivalents and Investments
Equity investments cost	1,438	543
Equity investments unrealized gains	467	185
Equity investments unrealized losses	2	5
Equity investments estimated fair value	1,903	723
Equity investments in privately held companies
Summary of Cash, Cash Equivalents and Investments
Equity investments in privately held companies, cost	315	255
Equity investments in privately held companies, gross unrealized gains	69	58
Equity investments in privately held companies , gross unrealized losses	38	22
Equity investments in privately held companies, estimated fair value	346	291
Money market funds
Summary of Cash, Cash Equivalents and Investments
Total cash equivalents	924	3,421
Restricted cash equivalents included in deferred income taxes and other assets	70	91
Bank certificates of deposit and time deposits
Summary of Cash, Cash Equivalents and Investments
Total cash equivalents	60	90
U.S. Treasury and agency securities
Summary of Cash, Cash Equivalents and Investments
Total cash equivalents	1,114	1,394
Municipal securities
Summary of Cash, Cash Equivalents and Investments
Total cash equivalents	34	19
Commercial paper, corporate bonds and medium-term notes
Summary of Cash, Cash Equivalents and Investments
Total cash equivalents	$ 1,815	$ 1,785