v3.26.1
Financial Instruments - Schedule of Cash Equivalents and Available-for-Sale Investments (Details) - USD ($)
$ in Millions
 9 Months Ended 12 Months Ended
Jul. 31, 2026
Oct. 31, 2025
Cash and Cash Equivalents [Line Items]    
Amortized Cost $ 215 $ 216
Gross Unrealized Gains 2 6
Fair Value 217 222
Equity securities, cost 66 65
Equity securities, gross unrealized gains (losses) (3) 0
Equity securities, fair value 63 65
Total cash and equivalents and available-for-sale investments, cost 4,688 3,954
Total cash equivalents and available-for-sale investments, gross unrealized gains (losses) 2 6
Total cash equivalents and available-for-sale investments, fair value 4,690 3,960
Cost    
Cash and Cash Equivalents [Line Items]    
Total cash equivalents 4,473 3,738
Cost | Time deposits    
Cash and Cash Equivalents [Line Items]    
Total cash equivalents 928 997
Cost | Money market funds    
Cash and Cash Equivalents [Line Items]    
Total cash equivalents 3,545 2,741
Fair Value    
Cash and Cash Equivalents [Line Items]    
Total cash equivalents 4,473 3,738
Fair Value | Time deposits    
Cash and Cash Equivalents [Line Items]    
Total cash equivalents 928 997
Fair Value | Money market funds    
Cash and Cash Equivalents [Line Items]    
Total cash equivalents 3,545 2,741
Foreign bonds    
Cash and Cash Equivalents [Line Items]    
Amortized Cost 107 107
Gross Unrealized Gains 2 4
Fair Value 109 111
Other debt securities    
Cash and Cash Equivalents [Line Items]    
Amortized Cost 42 44
Gross Unrealized Gains 3 2
Fair Value 45 46
Total debt securities    
Cash and Cash Equivalents [Line Items]    
Amortized Cost 149 151
Gross Unrealized Gains 5 6
Fair Value 154 157
Equity securities in public companies    
Cash and Cash Equivalents [Line Items]    
Equity securities, cost 8 6
Equity securities, gross unrealized gains (losses) (3) 0
Equity securities, fair value 5 6
Mutual funds    
Cash and Cash Equivalents [Line Items]    
Equity securities, cost 58 59
Equity securities, gross unrealized gains (losses) 0 0
Equity securities, fair value $ 58 $ 59