v3.26.1
ACQUISITIONS AND DISPOSITIONS - Noncontrolling Interest Investment and Disposition (Narrative) (Details) - CAD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Goodwill $ 35,765 $ 35,284