XML 236 R121.htm IDEA: XBRL DOCUMENT v3.25.0.1
Goodwill - Key assumptions used to estimate the recoverable amounts (Details)
Dec. 31, 2024
Bell CTS  
Disclosure of information for cash-generating units [line items]  
Perpetuity growth rate 1.50%
Discount rate 7.00%
Bell Media Inc.  
Disclosure of information for cash-generating units [line items]  
Perpetuity growth rate 0.50%
Discount rate 10.50%