v3.26.3
RISK MANAGEMENT AND FINANCIAL INSTRUMENTS - Schedule of Maturities for Investments in Debt Securities (Details)
$ in Millions
Sep. 30, 2026
CAD ($)
Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Fair Value [Abstract]  
Total $ 1,291
Less than 1 year 73
5 years 895
10 years 248
Thereafter $ 75