Cash, Cash Equivalents and Investments - Summary of Cash, Cash Equivalents and Investments (Details) - USD ($) $ in Millions	Jul. 31, 2022	Oct. 31, 2021	Aug. 01, 2021
Summary of Cash, Cash Equivalents and Investments
Cash	$ 1,284	$ 1,407
Total Cash equivalents	1,672	3,588
Total Cash and Cash equivalents	2,956	4,995	$ 6,066
Equity investments and equity securities without readily determinable, cost	670	583
Equity investments and equity securities without readily determinable, gross unrealized gains	148	121
Equity investments and equity securities without readily determinable, gross unrealized losses	32	17
Equity investments and equity securities without readily determinable, fair value	786	687
Total short-term and long-term investments cost	2,564	2,411
Gross unrealized gains on short-term and long-term investments	149	129
Gross unrealized losses on short-term and long-term investments	74	21
Total short-term and long-term investments	2,639	2,519
Cash, cash equivalents and investments, cost	5,520	7,406
Cash, cash equivalents and investments, gross unrealized gains	149	129
Cash, cash equivalents and investments, gross unrealized losses	74	21
Cash, cash equivalents and investments, estimated fair value	5,595	7,514
Total fixed income securities
Summary of Cash, Cash Equivalents and Investments
Cost of fixed income securities	1,894	1,828
Gross unrealized gains on fixed income securities	1	8
Gross unrealized losses on fixed income securities	42	4
Estimated fair value of fixed income securities	1,853	1,832
Bank certificate of deposit
Summary of Cash, Cash Equivalents and Investments
Cost of fixed income securities	6
Gross unrealized gains on fixed income securities	0
Gross unrealized losses on fixed income securities	0
Estimated fair value of fixed income securities	6
U.S. Treasury and agency securities
Summary of Cash, Cash Equivalents and Investments
Cost of fixed income securities	399	314
Gross unrealized gains on fixed income securities	0	0
Gross unrealized losses on fixed income securities	7	0
Estimated fair value of fixed income securities	392	314
Non-U.S. government securities | CANADA
Summary of Cash, Cash Equivalents and Investments
Cost of fixed income securities	8	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	8	5
Municipal securities
Summary of Cash, Cash Equivalents and Investments
Cost of fixed income securities	368	367
Gross unrealized gains on fixed income securities	1	3
Gross unrealized losses on fixed income securities	8	1
Estimated fair value of fixed income securities	361	369
Commercial paper, corporate bonds and medium-term notes
Summary of Cash, Cash Equivalents and Investments
Cost of fixed income securities	671	587
Gross unrealized gains on fixed income securities	0	2
Gross unrealized losses on fixed income securities	14	2
Estimated fair value of fixed income securities	657	587
Asset-backed and mortgage-backed securities
Summary of Cash, Cash Equivalents and Investments
Cost of fixed income securities	442	555
Gross unrealized gains on fixed income securities	0	3
Gross unrealized losses on fixed income securities	13	1
Estimated fair value of fixed income securities	429	557
Publicly traded equity securities
Summary of Cash, Cash Equivalents and Investments
Equity investments cost	87	22
Equity investments unrealized gain	65	39
Equity investments unrealized loss	16	3
Equity investments estimated fair value	136	58
Equity investments in privately-held companies
Summary of Cash, Cash Equivalents and Investments
Equity securities without readily determinable, cost	583	561
Equity securities without readily determinable, gross unrealized gains	83	82
Equity securities without readily determinable, gross unrealized losses	16	14
Equity securities without readily determinable, fair value	650	629
Money market funds
Summary of Cash, Cash Equivalents and Investments
Total Cash equivalents	1,381	3,556
Municipal securities
Summary of Cash, Cash Equivalents and Investments
Total Cash equivalents	11	22
Commercial paper, corporate bonds and medium-term notes
Summary of Cash, Cash Equivalents and Investments
Total Cash equivalents	$ 280	$ 10