v3.25.4
Segmented information - Segmented Information (Details)
$ in Millions
 3 Months Ended 12 Months Ended
Sep. 30, 2025
CAD ($)
Sep. 30, 2024
CAD ($)
Dec. 31, 2025
CAD ($)
measure
Dec. 31, 2024
CAD ($)
measure
segment
Dec. 31, 2023
CAD ($)
Disclosure of operating segments [line items]          
Operating revenues     $ 24,468 $ 24,409  
Operating costs     (13,810) (13,820)  
Adjusted EBITDA     10,658 10,589  
Severance, acquisition and other costs     (517) (454)  
Depreciation and amortization     (5,238) (5,041)  
Finance costs          
Interest expense     (1,775) (1,713)  
Net return on post-employment benefit plans     102 66  
Impairment of assets     (1,027) (2,190)  
Net gains on investments     5,217 57  
Other income (expense) [1]     287 (362)  
Income taxes     (1,193) (577)  
Net earnings     6,514 375  
Property, plant and equipment     33,541 30,001 $ 30,352
Finite-life intangible assets     7,821 7,044  
Indefinite-life intangible assets     9,413 9,742  
Goodwill     13,231 10,261 10,942
Capital expenditures     $ 3,700 $ 3,897  
Number of reportable segments | segment       2  
Number of measures of profit to make decisions | measure     1 1  
External service revenues          
Disclosure of operating segments [line items]          
Operating revenues     $ 24,468 $ 24,409  
Inter-segment service revenues          
Disclosure of operating segments [line items]          
Operating revenues     0 0  
Operating Service          
Disclosure of operating segments [line items]          
Operating revenues     21,207 21,073  
Operating Service | External service revenues          
Disclosure of operating segments [line items]          
Operating revenues     21,207 21,073  
Operating Service | Inter-segment service revenues          
Disclosure of operating segments [line items]          
Operating revenues     0 0  
Total products          
Disclosure of operating segments [line items]          
Operating revenues     3,261 3,336  
Bell CTS          
Finance costs          
Goodwill       8,266 8,099
Bell CTS | Canadian          
Finance costs          
Goodwill     8,286 8,266  
Bell CTS | U.S.          
Finance costs          
Goodwill     3,003 0  
Bell Media          
Finance costs          
Impairment of assets $ (976) $ (958)      
Goodwill     1,942 1,995 $ 2,843
Operating segments | Bell CTS          
Disclosure of operating segments [line items]          
Operating revenues     21,681 21,619  
Operating costs     (11,805) (11,788)  
Adjusted EBITDA     9,876 9,831  
Finance costs          
Property, plant and equipment     32,516 28,880  
Finite-life intangible assets     6,869 6,157  
Indefinite-life intangible assets     8,835 8,611  
Goodwill     11,289 8,266  
Capital expenditures     3,541 3,746  
Operating segments | Bell CTS | Canadian          
Disclosure of operating segments [line items]          
Operating revenues     21,289    
Operating costs     (11,584)    
Adjusted EBITDA     9,705    
Finance costs          
Property, plant and equipment     28,402    
Finite-life intangible assets     6,007    
Indefinite-life intangible assets     8,574    
Capital expenditures     3,153    
Operating segments | Bell CTS | U.S.          
Disclosure of operating segments [line items]          
Operating revenues     392    
Operating costs     (221)    
Adjusted EBITDA     171    
Finance costs          
Property, plant and equipment     4,114    
Finite-life intangible assets     862    
Indefinite-life intangible assets     261    
Capital expenditures     388    
Operating segments | Bell CTS | External service revenues          
Disclosure of operating segments [line items]          
Operating revenues     21,653 21,592  
Operating segments | Bell CTS | External service revenues | Canadian          
Disclosure of operating segments [line items]          
Operating revenues     21,261    
Operating segments | Bell CTS | External service revenues | U.S.          
Disclosure of operating segments [line items]          
Operating revenues     392    
Operating segments | Bell CTS | Inter-segment service revenues          
Disclosure of operating segments [line items]          
Operating revenues     28 27  
Operating segments | Bell CTS | Inter-segment service revenues | Canadian          
Disclosure of operating segments [line items]          
Operating revenues     28    
Operating segments | Bell CTS | Inter-segment service revenues | U.S.          
Disclosure of operating segments [line items]          
Operating revenues     0    
Operating segments | Bell CTS | Operating Service          
Disclosure of operating segments [line items]          
Operating revenues     18,420 18,283  
Operating segments | Bell CTS | Operating Service | Canadian          
Disclosure of operating segments [line items]          
Operating revenues     18,028    
Operating segments | Bell CTS | Operating Service | U.S.          
Disclosure of operating segments [line items]          
Operating revenues     392    
Operating segments | Bell CTS | Operating Service | External service revenues          
Disclosure of operating segments [line items]          
Operating revenues     18,392 18,256  
Operating segments | Bell CTS | Operating Service | External service revenues | Canadian          
Disclosure of operating segments [line items]          
Operating revenues     18,000    
Operating segments | Bell CTS | Operating Service | External service revenues | U.S.          
Disclosure of operating segments [line items]          
Operating revenues     392    
Operating segments | Bell CTS | Operating Service | Inter-segment service revenues          
Disclosure of operating segments [line items]          
Operating revenues     28 27  
Operating segments | Bell CTS | Operating Service | Inter-segment service revenues | Canadian          
Disclosure of operating segments [line items]          
Operating revenues     28    
Operating segments | Bell CTS | Operating Service | Inter-segment service revenues | U.S.          
Disclosure of operating segments [line items]          
Operating revenues     0    
Operating segments | Bell CTS | Total products          
Disclosure of operating segments [line items]          
Operating revenues     3,261 3,336  
Operating segments | Bell CTS | Total products | Canadian          
Disclosure of operating segments [line items]          
Operating revenues     3,261    
Operating segments | Bell CTS | Total products | U.S.          
Disclosure of operating segments [line items]          
Operating revenues     0    
Operating segments | Bell Media          
Disclosure of operating segments [line items]          
Operating revenues     3,154 3,151  
Operating costs     (2,372) (2,393)  
Adjusted EBITDA     782 758  
Finance costs          
Property, plant and equipment     1,025 1,121  
Finite-life intangible assets     952 887  
Indefinite-life intangible assets     578 1,131  
Goodwill       1,995  
Capital expenditures     159 151  
Operating segments | Bell Media | External service revenues          
Disclosure of operating segments [line items]          
Operating revenues     2,815 2,817  
Operating segments | Bell Media | Inter-segment service revenues          
Disclosure of operating segments [line items]          
Operating revenues     339 334  
Operating segments | Bell Media | Operating Service          
Disclosure of operating segments [line items]          
Operating revenues     3,154 3,151  
Operating segments | Bell Media | Operating Service | External service revenues          
Disclosure of operating segments [line items]          
Operating revenues     2,815 2,817  
Operating segments | Bell Media | Operating Service | Inter-segment service revenues          
Disclosure of operating segments [line items]          
Operating revenues     339 334  
Operating segments | Bell Media | Total products          
Disclosure of operating segments [line items]          
Operating revenues     0 0  
Inter- segment eliminations          
Disclosure of operating segments [line items]          
Operating revenues     (367) (361)  
Operating costs     367 361  
Adjusted EBITDA     0 0  
Finance costs          
Property, plant and equipment     0 0  
Finite-life intangible assets     0 0  
Indefinite-life intangible assets     0 0  
Goodwill     0 0  
Capital expenditures     0 0  
Inter- segment eliminations | External service revenues          
Disclosure of operating segments [line items]          
Operating revenues     0 0  
Inter- segment eliminations | Inter-segment service revenues          
Disclosure of operating segments [line items]          
Operating revenues     (367) (361)  
Inter- segment eliminations | Operating Service          
Disclosure of operating segments [line items]          
Operating revenues     (367) (361)  
Inter- segment eliminations | Operating Service | External service revenues          
Disclosure of operating segments [line items]          
Operating revenues     0 0  
Inter- segment eliminations | Operating Service | Inter-segment service revenues          
Disclosure of operating segments [line items]          
Operating revenues     (367) (361)  
Inter- segment eliminations | Total products          
Disclosure of operating segments [line items]          
Operating revenues     $ 0 $ 0  
[1]
(1)We have presented amounts from the previous period to make them consistent with the presentation of the current period.