v3.26.1
Fair Value (Tables)
 6 Months Ended
Apr. 30, 2026
Fair Value Disclosures [Abstract]  
Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis The following table presents HP’s assets and liabilities that are measured at fair value on a recurring basis:
 As of April 30, 2026As of October 31, 2025
 Fair Value Measured UsingFair Value Measured Using
 Level 1Level 2Level 3TotalLevel 1Level 2Level 3Total
 In millions
Assets        
Cash Equivalents        
Government debt(1)
$990 $— $— $990 $1,878 $— $— $1,878 
Available-for-Sale Investments
Financial institution instruments— 3 — 3 — 3 — 3 
Marketable securities and mutual funds(2)
10 112 — 122 9 122 — 131 
Derivative Instruments    
Foreign currency contracts— 154 — 154 — 182 — 182 
Other derivatives— 9 — 9 — 1 — 1 
Total assets$1,000 $278 $— $1,278 $1,887 $308 $— $2,195 
Liabilities        
Derivative Instruments        
Interest rate contracts$— $— $— $— $— $1 $— $1 
Foreign currency contracts— 252 — 252 — 242 — 242 
Other derivatives— — — — — 1 — 1 
Total liabilities$— $252 $— $252 $— $244 $— $244 
(1)    Money market funds invested in government debt and traded in active markets are included in Level 1. Government debt includes instruments such as U.S. treasury notes, U.S. agency securities and non-U.S. government bonds.
(2)    As of April 30, 2026 and October 31, 2025, $53 million and $63 million, respectively, of debt securities were restricted to fund benefits received by qualifying employees under a sponsored defined benefit plan.