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real estate joint ventures and investments in associates - Construction credit facilities (Details) - TELUS Sky real estate joint venture - CAD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
real estate joint ventures and investments in associates    
Percentage of financing provided 33.333%  
Construction financing amount $ 282 $ 282
Canadian financial institutions    
real estate joint ventures and investments in associates    
Percentage of financing provided 66.667%