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Investment and other income
9 Months Ended
Sep. 30, 2025
Other Income and Expenses [Abstract]  
Investment and other income Investment and other income
Investment and other income included gains and losses on asset sales as follows:
       Third Quarter
       Nine Months
       to September 30
millions of Canadian dollars2025 2024 2025 2024 
Proceeds from asset sales21 — 34 
Book value of asset sales43 (2)45 
Gain (loss) on asset sales, before-tax
(22)(11)
Gain (loss) on asset sales, after-tax
(24)(14)