PROPERTY, PLANT AND EQUIPMENT - Changes in Net Carrying Amounts of Property, Plant and Equipment (Details) - CAD ($)
$ in Millions |
12 Months Ended |
Dec. 31, 2025 |
Dec. 31, 2024 |
| Reconciliation of changes in property, plant and equipment [abstract] |
|
|
| Property, plant and equipment at beginning of period |
$ 25,072
|
$ 24,332
|
| Property, plant and equipment at end of period |
26,307
|
25,072
|
| Cost |
|
|
| Reconciliation of changes in property, plant and equipment [abstract] |
|
|
| Property, plant and equipment at beginning of period |
54,425
|
51,156
|
| Additions and transfers from construction in process |
4,745
|
4,749
|
| Acquisitions from business combinations |
995
|
|
| Disposals and other |
1,947
|
1,480
|
| Property, plant and equipment at end of period |
58,218
|
54,425
|
| Accumulated depreciation |
|
|
| Reconciliation of changes in property, plant and equipment [abstract] |
|
|
| Property, plant and equipment at beginning of period |
(29,353)
|
(26,824)
|
| Depreciation |
4,245
|
4,073
|
| Disposals and other |
(1,687)
|
(1,544)
|
| Property, plant and equipment at end of period |
(31,911)
|
(29,353)
|
| Property, plant and equipment |
|
|
| Reconciliation of changes in property, plant and equipment [abstract] |
|
|
| Property, plant and equipment at beginning of period |
22,377
|
21,771
|
| Property, plant and equipment at end of period |
23,208
|
22,377
|
| Property, plant and equipment | Cost |
|
|
| Reconciliation of changes in property, plant and equipment [abstract] |
|
|
| Property, plant and equipment at beginning of period |
50,378
|
47,412
|
| Additions and transfers from construction in process |
3,863
|
4,100
|
| Acquisitions from business combinations |
874
|
|
| Disposals and other |
1,694
|
1,134
|
| Property, plant and equipment at end of period |
53,421
|
50,378
|
| Property, plant and equipment | Accumulated depreciation |
|
|
| Reconciliation of changes in property, plant and equipment [abstract] |
|
|
| Property, plant and equipment at beginning of period |
(28,001)
|
(25,641)
|
| Depreciation |
3,790
|
3,665
|
| Disposals and other |
(1,578)
|
(1,305)
|
| Property, plant and equipment at end of period |
(30,213)
|
(28,001)
|
| Right-of-use assets |
|
|
| Reconciliation of changes in property, plant and equipment [abstract] |
|
|
| Property, plant and equipment at beginning of period |
2,695
|
2,561
|
| Property, plant and equipment at end of period |
3,099
|
2,695
|
| Right-of-use assets | Cost |
|
|
| Reconciliation of changes in property, plant and equipment [abstract] |
|
|
| Property, plant and equipment at beginning of period |
4,047
|
3,744
|
| Additions and transfers from construction in process |
882
|
649
|
| Acquisitions from business combinations |
121
|
|
| Disposals and other |
253
|
346
|
| Property, plant and equipment at end of period |
4,797
|
4,047
|
| Right-of-use assets | Accumulated depreciation |
|
|
| Reconciliation of changes in property, plant and equipment [abstract] |
|
|
| Property, plant and equipment at beginning of period |
(1,352)
|
(1,183)
|
| Depreciation |
455
|
408
|
| Disposals and other |
(109)
|
(239)
|
| Property, plant and equipment at end of period |
(1,698)
|
(1,352)
|
| Land and buildings | Property, plant and equipment |
|
|
| Reconciliation of changes in property, plant and equipment [abstract] |
|
|
| Property, plant and equipment at beginning of period |
1,291
|
973
|
| Property, plant and equipment at end of period |
1,853
|
1,291
|
| Land and buildings | Property, plant and equipment | Cost |
|
|
| Reconciliation of changes in property, plant and equipment [abstract] |
|
|
| Property, plant and equipment at beginning of period |
2,005
|
1,447
|
| Additions and transfers from construction in process |
45
|
296
|
| Acquisitions from business combinations |
652
|
|
| Disposals and other |
18
|
(262)
|
| Property, plant and equipment at end of period |
2,684
|
2,005
|
| Land and buildings | Property, plant and equipment | Accumulated depreciation |
|
|
| Reconciliation of changes in property, plant and equipment [abstract] |
|
|
| Property, plant and equipment at beginning of period |
(714)
|
(474)
|
| Depreciation |
118
|
106
|
| Disposals and other |
(1)
|
134
|
| Property, plant and equipment at end of period |
(831)
|
(714)
|
| Cable and wireless network | Property, plant and equipment |
|
|
| Reconciliation of changes in property, plant and equipment [abstract] |
|
|
| Property, plant and equipment at beginning of period |
14,808
|
14,459
|
| Property, plant and equipment at end of period |
15,529
|
14,808
|
| Cable and wireless network | Property, plant and equipment | Cost |
|
|
| Reconciliation of changes in property, plant and equipment [abstract] |
|
|
| Property, plant and equipment at beginning of period |
32,150
|
30,499
|
| Additions and transfers from construction in process |
2,916
|
2,466
|
| Acquisitions from business combinations |
0
|
|
| Disposals and other |
870
|
815
|
| Property, plant and equipment at end of period |
34,196
|
32,150
|
| Cable and wireless network | Property, plant and equipment | Accumulated depreciation |
|
|
| Reconciliation of changes in property, plant and equipment [abstract] |
|
|
| Property, plant and equipment at beginning of period |
(17,342)
|
(16,040)
|
| Depreciation |
2,146
|
2,068
|
| Disposals and other |
(821)
|
(766)
|
| Property, plant and equipment at end of period |
(18,667)
|
(17,342)
|
| Computer equipment and software | Property, plant and equipment |
|
|
| Reconciliation of changes in property, plant and equipment [abstract] |
|
|
| Property, plant and equipment at beginning of period |
1,926
|
2,341
|
| Property, plant and equipment at end of period |
2,282
|
1,926
|
| Computer equipment and software | Property, plant and equipment | Cost |
|
|
| Reconciliation of changes in property, plant and equipment [abstract] |
|
|
| Property, plant and equipment at beginning of period |
7,914
|
7,931
|
| Additions and transfers from construction in process |
1,256
|
425
|
| Acquisitions from business combinations |
20
|
|
| Disposals and other |
576
|
442
|
| Property, plant and equipment at end of period |
8,614
|
7,914
|
| Computer equipment and software | Property, plant and equipment | Accumulated depreciation |
|
|
| Reconciliation of changes in property, plant and equipment [abstract] |
|
|
| Property, plant and equipment at beginning of period |
(5,988)
|
(5,590)
|
| Depreciation |
908
|
866
|
| Disposals and other |
(564)
|
(468)
|
| Property, plant and equipment at end of period |
(6,332)
|
(5,988)
|
| Cable and wireless networks | Property, plant and equipment |
|
|
| Reconciliation of changes in property, plant and equipment [abstract] |
|
|
| Property, plant and equipment at beginning of period |
788
|
930
|
| Property, plant and equipment at end of period |
749
|
788
|
| Cable and wireless networks | Property, plant and equipment | Cost |
|
|
| Reconciliation of changes in property, plant and equipment [abstract] |
|
|
| Property, plant and equipment at beginning of period |
3,205
|
3,003
|
| Additions and transfers from construction in process |
365
|
285
|
| Acquisitions from business combinations |
0
|
|
| Disposals and other |
(6)
|
83
|
| Property, plant and equipment at end of period |
3,576
|
3,205
|
| Cable and wireless networks | Property, plant and equipment | Accumulated depreciation |
|
|
| Reconciliation of changes in property, plant and equipment [abstract] |
|
|
| Property, plant and equipment at beginning of period |
(2,417)
|
(2,073)
|
| Depreciation |
477
|
492
|
| Disposals and other |
(67)
|
(148)
|
| Property, plant and equipment at end of period |
(2,827)
|
(2,417)
|
| Leasehold improvements | Property, plant and equipment |
|
|
| Reconciliation of changes in property, plant and equipment [abstract] |
|
|
| Property, plant and equipment at beginning of period |
347
|
370
|
| Property, plant and equipment at end of period |
406
|
347
|
| Leasehold improvements | Property, plant and equipment | Cost |
|
|
| Reconciliation of changes in property, plant and equipment [abstract] |
|
|
| Property, plant and equipment at beginning of period |
843
|
817
|
| Additions and transfers from construction in process |
21
|
37
|
| Acquisitions from business combinations |
92
|
|
| Disposals and other |
71
|
11
|
| Property, plant and equipment at end of period |
885
|
843
|
| Leasehold improvements | Property, plant and equipment | Accumulated depreciation |
|
|
| Reconciliation of changes in property, plant and equipment [abstract] |
|
|
| Property, plant and equipment at beginning of period |
(496)
|
(447)
|
| Depreciation |
51
|
63
|
| Disposals and other |
(68)
|
(14)
|
| Property, plant and equipment at end of period |
(479)
|
(496)
|
| Equipment and vehicles | Property, plant and equipment |
|
|
| Reconciliation of changes in property, plant and equipment [abstract] |
|
|
| Property, plant and equipment at beginning of period |
483
|
434
|
| Property, plant and equipment at end of period |
592
|
483
|
| Equipment and vehicles | Property, plant and equipment | Cost |
|
|
| Reconciliation of changes in property, plant and equipment [abstract] |
|
|
| Property, plant and equipment at beginning of period |
1,527
|
1,451
|
| Additions and transfers from construction in process |
139
|
121
|
| Acquisitions from business combinations |
70
|
|
| Disposals and other |
67
|
45
|
| Property, plant and equipment at end of period |
1,669
|
1,527
|
| Equipment and vehicles | Property, plant and equipment | Accumulated depreciation |
|
|
| Reconciliation of changes in property, plant and equipment [abstract] |
|
|
| Property, plant and equipment at beginning of period |
(1,044)
|
(1,017)
|
| Depreciation |
90
|
70
|
| Disposals and other |
(57)
|
(43)
|
| Property, plant and equipment at end of period |
(1,077)
|
(1,044)
|
| Construction in process | Property, plant and equipment |
|
|
| Reconciliation of changes in property, plant and equipment [abstract] |
|
|
| Property, plant and equipment at beginning of period |
2,734
|
2,264
|
| Property, plant and equipment at end of period |
1,797
|
2,734
|
| Construction in process | Property, plant and equipment | Cost |
|
|
| Reconciliation of changes in property, plant and equipment [abstract] |
|
|
| Property, plant and equipment at beginning of period |
2,734
|
2,264
|
| Additions and transfers from construction in process |
|
470
|
| Additions and transfers from construction in process |
(879)
|
|
| Acquisitions from business combinations |
40
|
|
| Disposals and other |
98
|
0
|
| Property, plant and equipment at end of period |
1,797
|
2,734
|
| Construction in process | Property, plant and equipment | Accumulated depreciation |
|
|
| Reconciliation of changes in property, plant and equipment [abstract] |
|
|
| Property, plant and equipment at beginning of period |
0
|
0
|
| Depreciation |
0
|
0
|
| Disposals and other |
0
|
0
|
| Property, plant and equipment at end of period |
$ 0
|
$ 0
|