property, plant and equipment (Details) - CAD ($) $ in Millions |
3 Months Ended |
6 Months Ended |
|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at beginning of period |
|
|
$ 17,503
|
|
|
| Depreciation |
$ 591
|
$ 601
|
1,174
|
$ 1,193
|
|
| Property, plant and equipment at end of period |
17,819
|
|
17,819
|
|
|
| Impairment of real estate right-of-use lease assets |
|
|
3
|
|
|
| Contractual commitments for the acquisition of property, plant and equipment |
211
|
|
211
|
|
$ 184
|
| Owned assets |
|
|
|
|
|
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at beginning of period |
|
|
14,414
|
|
|
| Property, plant and equipment at end of period |
15,094
|
|
15,094
|
|
|
| Owned assets | Network assets |
|
|
|
|
|
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at beginning of period |
|
|
11,595
|
|
|
| Property, plant and equipment at end of period |
11,977
|
|
11,977
|
|
|
| Owned assets | Buildings and leasehold improvements |
|
|
|
|
|
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at beginning of period |
|
|
1,462
|
|
|
| Property, plant and equipment at end of period |
1,492
|
|
1,492
|
|
|
| Owned assets | Computer hardware and other |
|
|
|
|
|
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at beginning of period |
|
|
506
|
|
|
| Property, plant and equipment at end of period |
500
|
|
500
|
|
|
| Owned assets | Land |
|
|
|
|
|
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at beginning of period |
|
|
85
|
|
|
| Property, plant and equipment at end of period |
82
|
|
82
|
|
|
| Owned assets | Investment property |
|
|
|
|
|
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at beginning of period |
|
|
45
|
|
|
| Property, plant and equipment at end of period |
44
|
|
44
|
|
|
| Owned assets | Assets under construction |
|
|
|
|
|
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at beginning of period |
|
|
721
|
|
|
| Property, plant and equipment at end of period |
999
|
|
999
|
|
|
| Right-of-use lease assets |
|
|
|
|
|
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at beginning of period |
|
|
3,089
|
|
|
| Property, plant and equipment at end of period |
2,725
|
|
2,725
|
|
|
| Right-of-use lease assets | Network assets |
|
|
|
|
|
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at beginning of period |
|
|
1,776
|
|
|
| Property, plant and equipment at end of period |
1,319
|
|
1,319
|
|
|
| Right-of-use lease assets | Real estate |
|
|
|
|
|
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at beginning of period |
|
|
1,253
|
|
|
| Property, plant and equipment at end of period |
1,332
|
|
1,332
|
|
|
| Right-of-use lease assets | Other |
|
|
|
|
|
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at beginning of period |
|
|
60
|
|
|
| Property, plant and equipment at end of period |
74
|
|
74
|
|
|
| AT COST |
|
|
|
|
|
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at beginning of period |
|
|
49,821
|
|
|
| Additions |
|
|
1,422
|
|
|
| Assets under construction put into service |
|
|
|
|
|
| Transfers |
|
|
|
|
|
| Dispositions, retirements and other |
|
|
(459)
|
|
|
| Net foreign exchange differences |
|
|
44
|
|
|
| Property, plant and equipment at end of period |
50,828
|
|
50,828
|
|
|
| AT COST | Owned assets |
|
|
|
|
|
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at beginning of period |
|
|
44,773
|
|
|
| Additions |
|
|
830
|
|
|
| Transfers |
|
|
1,106
|
|
|
| Dispositions, retirements and other |
|
|
(379)
|
|
|
| Net foreign exchange differences |
|
|
26
|
|
|
| Property, plant and equipment at end of period |
46,356
|
|
46,356
|
|
|
| AT COST | Owned assets | Network assets |
|
|
|
|
|
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at beginning of period |
|
|
38,005
|
|
|
| Additions |
|
|
388
|
|
|
| Assets under construction put into service |
|
|
5
|
|
|
| Transfers |
|
|
1,082
|
|
|
| Dispositions, retirements and other |
|
|
(315)
|
|
|
| Net foreign exchange differences |
|
|
3
|
|
|
| Property, plant and equipment at end of period |
39,168
|
|
39,168
|
|
|
| AT COST | Owned assets | Buildings and leasehold improvements |
|
|
|
|
|
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at beginning of period |
|
|
4,018
|
|
|
| Additions |
|
|
11
|
|
|
| Assets under construction put into service |
|
|
96
|
|
|
| Dispositions, retirements and other |
|
|
(33)
|
|
|
| Net foreign exchange differences |
|
|
6
|
|
|
| Property, plant and equipment at end of period |
4,098
|
|
4,098
|
|
|
| AT COST | Owned assets | Computer hardware and other |
|
|
|
|
|
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at beginning of period |
|
|
1,898
|
|
|
| Additions |
|
|
22
|
|
|
| Assets under construction put into service |
|
|
36
|
|
|
| Transfers |
|
|
24
|
|
|
| Dispositions, retirements and other |
|
|
(28)
|
|
|
| Net foreign exchange differences |
|
|
11
|
|
|
| Property, plant and equipment at end of period |
1,963
|
|
1,963
|
|
|
| AT COST | Owned assets | Land |
|
|
|
|
|
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at beginning of period |
|
|
85
|
|
|
| Dispositions, retirements and other |
|
|
(3)
|
|
|
| Property, plant and equipment at end of period |
82
|
|
82
|
|
|
| AT COST | Owned assets | Investment property |
|
|
|
|
|
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at beginning of period |
|
|
46
|
|
|
| Property, plant and equipment at end of period |
46
|
|
46
|
|
|
| AT COST | Owned assets | Assets under construction |
|
|
|
|
|
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at beginning of period |
|
|
721
|
|
|
| Additions |
|
|
409
|
|
|
| Assets under construction put into service |
|
|
(137)
|
|
|
| Net foreign exchange differences |
|
|
6
|
|
|
| Property, plant and equipment at end of period |
999
|
|
999
|
|
|
| AT COST | Right-of-use lease assets |
|
|
|
|
|
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at beginning of period |
|
|
5,048
|
|
|
| Additions |
|
|
592
|
|
|
| Transfers |
|
|
(1,106)
|
|
|
| Dispositions, retirements and other |
|
|
(80)
|
|
|
| Net foreign exchange differences |
|
|
18
|
|
|
| Property, plant and equipment at end of period |
4,472
|
|
4,472
|
|
|
| AT COST | Right-of-use lease assets | Network assets |
|
|
|
|
|
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at beginning of period |
|
|
2,150
|
|
|
| Additions |
|
|
372
|
|
|
| Transfers |
|
|
(1,106)
|
|
|
| Property, plant and equipment at end of period |
1,416
|
|
1,416
|
|
|
| AT COST | Right-of-use lease assets | Real estate |
|
|
|
|
|
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at beginning of period |
|
|
2,818
|
|
|
| Additions |
|
|
189
|
|
|
| Dispositions, retirements and other |
|
|
(76)
|
|
|
| Net foreign exchange differences |
|
|
18
|
|
|
| Property, plant and equipment at end of period |
2,949
|
|
2,949
|
|
|
| AT COST | Right-of-use lease assets | Other |
|
|
|
|
|
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at beginning of period |
|
|
80
|
|
|
| Additions |
|
|
31
|
|
|
| Dispositions, retirements and other |
|
|
(4)
|
|
|
| Property, plant and equipment at end of period |
107
|
|
107
|
|
|
| ACCUMULATED DEPRECIATION |
|
|
|
|
|
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at beginning of period |
|
|
32,318
|
|
|
| Depreciation |
|
|
1,174
|
|
|
| Transfers |
|
|
|
|
|
| Dispositions, retirements and other |
|
|
(509)
|
|
|
| Net foreign exchange differences |
|
|
26
|
|
|
| Property, plant and equipment at end of period |
33,009
|
|
33,009
|
|
|
| ACCUMULATED DEPRECIATION | Owned assets |
|
|
|
|
|
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at beginning of period |
|
|
30,359
|
|
|
| Depreciation |
|
|
961
|
|
|
| Transfers |
|
|
335
|
|
|
| Dispositions, retirements and other |
|
|
(407)
|
|
|
| Net foreign exchange differences |
|
|
14
|
|
|
| Property, plant and equipment at end of period |
31,262
|
|
31,262
|
|
|
| ACCUMULATED DEPRECIATION | Owned assets | Network assets |
|
|
|
|
|
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at beginning of period |
|
|
26,410
|
|
|
| Depreciation |
|
|
793
|
|
|
| Transfers |
|
|
324
|
|
|
| Dispositions, retirements and other |
|
|
(338)
|
|
|
| Net foreign exchange differences |
|
|
2
|
|
|
| Property, plant and equipment at end of period |
27,191
|
|
27,191
|
|
|
| ACCUMULATED DEPRECIATION | Owned assets | Buildings and leasehold improvements |
|
|
|
|
|
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at beginning of period |
|
|
2,556
|
|
|
| Depreciation |
|
|
80
|
|
|
| Dispositions, retirements and other |
|
|
(34)
|
|
|
| Net foreign exchange differences |
|
|
4
|
|
|
| Property, plant and equipment at end of period |
2,606
|
|
2,606
|
|
|
| ACCUMULATED DEPRECIATION | Owned assets | Computer hardware and other |
|
|
|
|
|
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at beginning of period |
|
|
1,392
|
|
|
| Depreciation |
|
|
87
|
|
|
| Transfers |
|
|
11
|
|
|
| Dispositions, retirements and other |
|
|
(35)
|
|
|
| Net foreign exchange differences |
|
|
8
|
|
|
| Property, plant and equipment at end of period |
1,463
|
|
1,463
|
|
|
| ACCUMULATED DEPRECIATION | Owned assets | Land |
|
|
|
|
|
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at end of period |
0
|
|
0
|
|
|
| ACCUMULATED DEPRECIATION | Owned assets | Investment property |
|
|
|
|
|
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at beginning of period |
|
|
1
|
|
|
| Depreciation |
|
|
1
|
|
|
| Property, plant and equipment at end of period |
2
|
|
2
|
|
|
| ACCUMULATED DEPRECIATION | Owned assets | Assets under construction |
|
|
|
|
|
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at end of period |
0
|
|
0
|
|
|
| ACCUMULATED DEPRECIATION | Right-of-use lease assets |
|
|
|
|
|
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at beginning of period |
|
|
1,959
|
|
|
| Depreciation |
|
|
213
|
|
|
| Transfers |
|
|
(335)
|
|
|
| Dispositions, retirements and other |
|
|
(102)
|
|
|
| Net foreign exchange differences |
|
|
12
|
|
|
| Property, plant and equipment at end of period |
1,747
|
|
1,747
|
|
|
| ACCUMULATED DEPRECIATION | Right-of-use lease assets | Network assets |
|
|
|
|
|
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at beginning of period |
|
|
374
|
|
|
| Depreciation |
|
|
59
|
|
|
| Transfers |
|
|
(335)
|
|
|
| Dispositions, retirements and other |
|
|
(1)
|
|
|
| Property, plant and equipment at end of period |
97
|
|
97
|
|
|
| ACCUMULATED DEPRECIATION | Right-of-use lease assets | Real estate |
|
|
|
|
|
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at beginning of period |
|
|
1,565
|
|
|
| Depreciation |
|
|
137
|
|
|
| Dispositions, retirements and other |
|
|
(97)
|
|
|
| Net foreign exchange differences |
|
|
12
|
|
|
| Property, plant and equipment at end of period |
1,617
|
|
1,617
|
|
|
| ACCUMULATED DEPRECIATION | Right-of-use lease assets | Other |
|
|
|
|
|
| property, plant and equipment |
|
|
|
|
|
| Property, plant and equipment at beginning of period |
|
|
20
|
|
|
| Depreciation |
|
|
17
|
|
|
| Dispositions, retirements and other |
|
|
(4)
|
|
|
| Property, plant and equipment at end of period |
$ 33
|
|
$ 33
|
|
|