v3.26.1
Fair Value - Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($)
$ in Millions
Jul. 31, 2026
Oct. 31, 2025
Assets    
Cash Equivalents $ 1,412 $ 1,878
Derivative Instruments 210 183
Total assets 1,741 2,195
Liabilities    
Derivative Instruments 169 244
Total liabilities 169 244
Government debt    
Assets    
Cash Equivalents 1,412 1,878
Financial institution instruments    
Assets    
Available-for-Sale Investments 3 3
Marketable securities and mutual funds    
Assets    
Available-for-Sale Investments 116 131
Liabilities    
Debt securities, restricted 46 63
Interest rate contracts    
Liabilities    
Derivative Instruments 0 1
Foreign currency contracts    
Assets    
Derivative Instruments 210 182
Liabilities    
Derivative Instruments 167 242
Other derivatives    
Assets    
Derivative Instruments 0 1
Liabilities    
Derivative Instruments 2 1
Level 1    
Assets    
Total assets 1,423 1,887
Liabilities    
Total liabilities 0 0
Level 1 | Government debt    
Assets    
Cash Equivalents 1,412 1,878
Level 1 | Financial institution instruments    
Assets    
Available-for-Sale Investments 0 0
Level 1 | Marketable securities and mutual funds    
Assets    
Available-for-Sale Investments 11 9
Level 1 | Interest rate contracts    
Liabilities    
Derivative Instruments 0 0
Level 1 | Foreign currency contracts    
Assets    
Derivative Instruments 0 0
Liabilities    
Derivative Instruments 0 0
Level 1 | Other derivatives    
Assets    
Derivative Instruments 0 0
Liabilities    
Derivative Instruments 0 0
Level 2    
Assets    
Total assets 318 308
Liabilities    
Total liabilities 169 244
Level 2 | Government debt    
Assets    
Cash Equivalents 0 0
Level 2 | Financial institution instruments    
Assets    
Available-for-Sale Investments 3 3
Level 2 | Marketable securities and mutual funds    
Assets    
Available-for-Sale Investments 105 122
Level 2 | Interest rate contracts    
Liabilities    
Derivative Instruments 0 1
Level 2 | Foreign currency contracts    
Assets    
Derivative Instruments 210 182
Liabilities    
Derivative Instruments 167 242
Level 2 | Other derivatives    
Assets    
Derivative Instruments 0 1
Liabilities    
Derivative Instruments 2 1
Level 3    
Assets    
Total assets 0 0
Liabilities    
Total liabilities 0 0
Level 3 | Government debt    
Assets    
Cash Equivalents 0 0
Level 3 | Financial institution instruments    
Assets    
Available-for-Sale Investments 0 0
Level 3 | Marketable securities and mutual funds    
Assets    
Available-for-Sale Investments 0 0
Level 3 | Interest rate contracts    
Liabilities    
Derivative Instruments 0 0
Level 3 | Foreign currency contracts    
Assets    
Derivative Instruments 0 0
Liabilities    
Derivative Instruments 0 0
Level 3 | Other derivatives    
Assets    
Derivative Instruments 0 0
Liabilities    
Derivative Instruments $ 0 $ 0