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Intangible assets (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | $ 16,609 | $ 16,183
Ending balance | 16,786 | 16,609
Cost |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | 24,110 | 23,181
Additions | 2,202 | 1,933
Business acquisitions/(business disposition) | 49 | 75
Transfers | 1,279 | 870
Retirements and disposals | 862 | 662
Impairment losses recognized in earnings | (866) | (96)
Amortization included in operating costs | (1,158) | (1,165)
Reclassified to assets held for sale | (3) | (26)
Ending balance | 24,751 | 24,110
Accumulated amortization |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | (7,501) | (6,998)
Transfers |  | (25)
Retirements and disposals | (819) | (645)
Amortization included in operating costs | 1,283 | 1,173
Ending balance | (7,965) | (7,501)
Total |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | 9,815 | 9,826
Ending balance | 9,742 | 9,815
Total | Cost |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | 9,815 | 9,826
Additions | 553 | 53
Business acquisitions/(business disposition) | 5 | 24
Transfers | 0 | 0
Retirements and disposals | 1 | 11
Impairment losses recognized in earnings | (627) | (51)
Amortization included in operating costs | 0 | 0
Reclassified to assets held for sale | (3) | (26)
Ending balance | 9,742 | 9,815
Total | Accumulated amortization |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | 0 | 0
Transfers |  | 0
Retirements and disposals | 0 | 0
Amortization included in operating costs | 0 | 0
Ending balance | 0 | 0
Brands |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | 2,432 | 2,435
Ending balance | 2,387 | 2,432
Brands | Cost |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | 2,432 | 2,435
Additions | 0 | 0
Business acquisitions/(business disposition) | 4 | 31
Transfers | 0 | 0
Retirements and disposals | 0 | 0
Impairment losses recognized in earnings | (49) | (34)
Amortization included in operating costs | 0 | 0
Reclassified to assets held for sale | 0 | 0
Ending balance | 2,387 | 2,432
Brands | Accumulated amortization |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | 0 | 0
Transfers |  | 0
Retirements and disposals | 0 | 0
Amortization included in operating costs | 0 | 0
Ending balance | 0 | 0
Spectrum and other licences |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | 5,949 | 5,905
Ending balance | 6,500 | 5,949
Spectrum and other licences | Cost |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | 5,949 | 5,905
Additions | 553 | 53
Business acquisitions/(business disposition) | 1 | (7)
Transfers | 0 | 0
Retirements and disposals | 0 | 2
Impairment losses recognized in earnings | 0 | 0
Amortization included in operating costs | 0 | 0
Reclassified to assets held for sale | (3) | 0
Ending balance | 6,500 | 5,949
Spectrum and other licences | Accumulated amortization |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | 0 | 0
Transfers |  | 0
Retirements and disposals | 0 | 0
Amortization included in operating costs | 0 | 0
Ending balance | 0 | 0
Broadcast licences |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | 1,434 | 1,486
Ending balance | 855 | 1,434
Broadcast licences | Cost |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | 1,434 | 1,486
Additions | 0 | 0
Business acquisitions/(business disposition) | 0 | 0
Transfers | 0 | 0
Retirements and disposals | 1 | 9
Impairment losses recognized in earnings | (578) | (17)
Amortization included in operating costs | 0 | 0
Reclassified to assets held for sale | 0 | (26)
Ending balance | 855 | 1,434
Broadcast licences | Accumulated amortization |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | 0 | 0
Transfers |  | 0
Retirements and disposals | 0 | 0
Amortization included in operating costs | 0 | 0
Ending balance | 0 | 0
Total |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | 6,794 | 6,357
Ending balance | 7,044 | 6,794
Total | Cost |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | 14,295 | 13,355
Additions | 1,649 | 1,880
Business acquisitions/(business disposition) | 44 | 51
Transfers | 1,279 | 870
Retirements and disposals | 861 | 651
Impairment losses recognized in earnings | (239) | (45)
Amortization included in operating costs | (1,158) | (1,165)
Reclassified to assets held for sale | 0 | 0
Ending balance | 15,009 | 14,295
Total | Accumulated amortization |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | (7,501) | (6,998)
Transfers |  | (25)
Retirements and disposals | (819) | (645)
Amortization included in operating costs | 1,283 | 1,173
Ending balance | (7,965) | (7,501)
Software |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | 5,152 | 4,809
Ending balance | 5,483 | 5,152
Software | Cost |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | 11,345 | 10,543
Additions | 317 | 471
Business acquisitions/(business disposition) | 4 | 10
Transfers | 1,279 | 897
Retirements and disposals | 860 | 576
Impairment losses recognized in earnings | (85) | 0
Amortization included in operating costs | 0 | 0
Reclassified to assets held for sale | 0 | 0
Ending balance | 12,000 | 11,345
Software | Accumulated amortization |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | (6,193) | (5,734)
Transfers |  | 0
Retirements and disposals | (818) | (574)
Amortization included in operating costs | 1,142 | 1,033
Ending balance | (6,517) | (6,193)
Customer relation-ships |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | 689 | 742
Ending balance | 633 | 689
Customer relation-ships | Cost |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | 1,778 | 1,802
Additions | 0 | 0
Business acquisitions/(business disposition) | 40 | 45
Transfers | 0 | 0
Retirements and disposals | 0 | 69
Impairment losses recognized in earnings | 0 | 0
Amortization included in operating costs | 0 | 0
Reclassified to assets held for sale | 0 | 0
Ending balance | 1,818 | 1,778
Customer relation-ships | Accumulated amortization |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | (1,089) | (1,060)
Transfers |  | 0
Retirements and disposals | 0 | (69)
Amortization included in operating costs | 96 | 98
Ending balance | (1,185) | (1,089)
Program and feature film rights |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | 651 | 603
Ending balance | 677 | 651
Program and feature film rights | Cost |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | 651 | 603
Additions | 1,328 | 1,260
Business acquisitions/(business disposition) | 0 | 0
Transfers | 0 | 0
Retirements and disposals | 0 | 2
Impairment losses recognized in earnings | (144) | (45)
Amortization included in operating costs | (1,158) | (1,165)
Reclassified to assets held for sale | 0 | 0
Ending balance | 677 | 651
Program and feature film rights | Accumulated amortization |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | 0 | 0
Transfers |  | 0
Retirements and disposals | 0 | 0
Amortization included in operating costs | 0 | 0
Ending balance | 0 | 0
Other |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | 302 | 203
Ending balance | 251 | 302
Other | Cost |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | 521 | 407
Additions | 4 | 149
Business acquisitions/(business disposition) | 0 | (4)
Transfers | 0 | (27)
Retirements and disposals | 1 | 4
Impairment losses recognized in earnings | (10) | 0
Amortization included in operating costs | 0 | 0
Reclassified to assets held for sale | 0 | 0
Ending balance | 514 | 521
Other | Accumulated amortization |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | (219) | (204)
Transfers |  | (25)
Retirements and disposals | (1) | (2)
Amortization included in operating costs | 45 | 42
Ending balance | $ (263) | $ (219)

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