v3.26.1
LONG-TERM DEBT - Other loans (Details) - USD ($)
$ in Millions
9 Months Ended
Jul. 31, 2026
Jul. 31, 2025
Oct. 31, 2025
Debt Instrument      
Long-term debt $ 3,645   $ 3,050
Repayments of Long-Term Debt (4) $ (2)  
Other Loans      
Debt Instrument      
Long-term debt $ 17   $ 20
Strategic Innovation Fund      
Debt Instrument      
Weighted Average Interest Rate 4.70%   4.70%
Atlantic Canada Opportunities Agency (ACOA)      
Debt Instrument      
Weighted Average Interest Rate 4.50%   4.50%
Senior Notes 2032      
Debt Instrument      
Long-term debt $ 594   $ 0