RISK MANAGEMENT AND FINANCIAL INSTRUMENTS - Schedule of the Consolidated Statements of Financial Position Location and Carrying Value of Derivative Instruments (Details) - CAD ($)
$ in Millions |
Mar. 31, 2026 |
Dec. 31, 2025 |
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Total net derivative asset/(liability) |
$ (1,828)
|
$ (823)
|
| Derivative asset liability, amounts available for offset |
0
|
|
| Total net derivative asset/(liability) |
(1,828)
|
(823)
|
| Non- Qualifying Derivative Instruments |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Total net derivative asset/(liability) |
(1,824)
|
(873)
|
| Cash flow hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Total net derivative asset/(liability) |
47
|
79
|
| Fair value hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Total net derivative asset/(liability) |
(51)
|
(29)
|
| Foreign exchange contracts |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Total net derivative asset/(liability) |
(1,532)
|
(1,104)
|
| Derivative asset liability, amounts available for offset |
0
|
|
| Total net derivative asset/(liability) |
(1,532)
|
(1,104)
|
| Foreign exchange contracts | Non- Qualifying Derivative Instruments |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Total net derivative asset/(liability) |
(1,532)
|
1,104
|
| Foreign exchange contracts | Cash flow hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Total net derivative asset/(liability) |
0
|
0
|
| Foreign exchange contracts | Fair value hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Total net derivative asset/(liability) |
0
|
0
|
| Interest rate contracts |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Total net derivative asset/(liability) |
69
|
91
|
| Derivative asset liability, amounts available for offset |
0
|
|
| Total net derivative asset/(liability) |
69
|
91
|
| Interest rate contracts | Non- Qualifying Derivative Instruments |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Total net derivative asset/(liability) |
73
|
41
|
| Interest rate contracts | Cash flow hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Total net derivative asset/(liability) |
47
|
79
|
| Interest rate contracts | Fair value hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Total net derivative asset/(liability) |
(51)
|
(29)
|
| Commodity contracts |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Total net derivative asset/(liability) |
(365)
|
190
|
| Derivative asset liability, amounts available for offset |
0
|
|
| Total net derivative asset/(liability) |
(365)
|
190
|
| Commodity contracts | Non- Qualifying Derivative Instruments |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Total net derivative asset/(liability) |
(365)
|
190
|
| Commodity contracts | Cash flow hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Total net derivative asset/(liability) |
0
|
0
|
| Commodity contracts | Fair value hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Total net derivative asset/(liability) |
0
|
0
|
| Other current assets |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative assets, total gross derivative instruments as presented |
1,598
|
591
|
| Derivative assets, amounts available for offset |
(1,291)
|
(246)
|
| Derivative assets, total net derivative instruments |
$ 307
|
$ 345
|
| Derivative Asset, Statement of Financial Position [Extensible Enumeration] |
Other current assets
|
Other current assets
|
| Other current assets | Non- Qualifying Derivative Instruments |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative assets, total gross derivative instruments as presented |
$ 1,545
|
$ 507
|
| Other current assets | Cash flow hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative assets, total gross derivative instruments as presented |
36
|
79
|
| Other current assets | Fair value hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative assets, total gross derivative instruments as presented |
17
|
5
|
| Other current assets | Foreign exchange contracts |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative assets, total gross derivative instruments as presented |
30
|
27
|
| Derivative assets, amounts available for offset |
(16)
|
(17)
|
| Derivative assets, total net derivative instruments |
14
|
10
|
| Other current assets | Foreign exchange contracts | Non- Qualifying Derivative Instruments |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative assets, total gross derivative instruments as presented |
30
|
27
|
| Other current assets | Foreign exchange contracts | Cash flow hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative assets, total gross derivative instruments as presented |
0
|
0
|
| Other current assets | Foreign exchange contracts | Fair value hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative assets, total gross derivative instruments as presented |
0
|
0
|
| Other current assets | Interest rate contracts |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative assets, total gross derivative instruments as presented |
71
|
106
|
| Derivative assets, amounts available for offset |
(22)
|
(37)
|
| Derivative assets, total net derivative instruments |
49
|
69
|
| Derivative liabilities, total net derivative instruments |
|
(11)
|
| Other current assets | Interest rate contracts | Non- Qualifying Derivative Instruments |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative assets, total gross derivative instruments as presented |
18
|
22
|
| Other current assets | Interest rate contracts | Cash flow hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative assets, total gross derivative instruments as presented |
36
|
79
|
| Other current assets | Interest rate contracts | Fair value hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative assets, total gross derivative instruments as presented |
17
|
5
|
| Other current assets | Commodity contracts |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative assets, total gross derivative instruments as presented |
1,497
|
458
|
| Derivative assets, amounts available for offset |
(1,253)
|
(192)
|
| Derivative assets, total net derivative instruments |
244
|
266
|
| Other current assets | Commodity contracts | Non- Qualifying Derivative Instruments |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative assets, total gross derivative instruments as presented |
1,497
|
458
|
| Other current assets | Commodity contracts | Cash flow hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative assets, total gross derivative instruments as presented |
0
|
0
|
| Other current assets | Commodity contracts | Fair value hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative assets, total gross derivative instruments as presented |
0
|
0
|
| Deferred amounts and other assets |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative assets, total gross derivative instruments as presented |
254
|
293
|
| Derivative assets, amounts available for offset |
(107)
|
(71)
|
| Derivative assets, total net derivative instruments |
$ 147
|
$ 222
|
| Derivative Asset, Statement of Financial Position [Extensible Enumeration] |
Deferred Costs and Other Assets
|
Deferred Costs and Other Assets
|
| Deferred amounts and other assets | Non- Qualifying Derivative Instruments |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative assets, total gross derivative instruments as presented |
$ 243
|
$ 284
|
| Deferred amounts and other assets | Cash flow hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative assets, total gross derivative instruments as presented |
11
|
9
|
| Deferred amounts and other assets | Fair value hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative assets, total gross derivative instruments as presented |
0
|
0
|
| Deferred amounts and other assets | Foreign exchange contracts |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative assets, total gross derivative instruments as presented |
33
|
52
|
| Derivative assets, amounts available for offset |
(28)
|
(24)
|
| Derivative assets, total net derivative instruments |
5
|
28
|
| Deferred amounts and other assets | Foreign exchange contracts | Non- Qualifying Derivative Instruments |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative assets, total gross derivative instruments as presented |
33
|
52
|
| Deferred amounts and other assets | Foreign exchange contracts | Cash flow hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative assets, total gross derivative instruments as presented |
0
|
0
|
| Deferred amounts and other assets | Foreign exchange contracts | Fair value hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative assets, total gross derivative instruments as presented |
0
|
0
|
| Deferred amounts and other assets | Interest rate contracts |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative assets, total gross derivative instruments as presented |
145
|
117
|
| Derivative assets, amounts available for offset |
(52)
|
(27)
|
| Derivative assets, total net derivative instruments |
93
|
90
|
| Deferred amounts and other assets | Interest rate contracts | Non- Qualifying Derivative Instruments |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative assets, total gross derivative instruments as presented |
134
|
108
|
| Deferred amounts and other assets | Interest rate contracts | Cash flow hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative assets, total gross derivative instruments as presented |
11
|
9
|
| Deferred amounts and other assets | Interest rate contracts | Fair value hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative assets, total gross derivative instruments as presented |
0
|
0
|
| Deferred amounts and other assets | Commodity contracts |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative assets, total gross derivative instruments as presented |
76
|
124
|
| Derivative assets, amounts available for offset |
(27)
|
(20)
|
| Derivative assets, total net derivative instruments |
49
|
104
|
| Deferred amounts and other assets | Commodity contracts | Non- Qualifying Derivative Instruments |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative assets, total gross derivative instruments as presented |
76
|
124
|
| Deferred amounts and other assets | Commodity contracts | Cash flow hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative assets, total gross derivative instruments as presented |
0
|
0
|
| Deferred amounts and other assets | Commodity contracts | Fair value hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative assets, total gross derivative instruments as presented |
0
|
0
|
| Other current liabilities |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative liabilities, total gross derivative instruments as presented |
(2,361)
|
(712)
|
| Derivative liabilities, amounts available for offset |
1,291
|
246
|
| Derivative liabilities, total net derivative instruments |
$ (1,070)
|
$ (466)
|
| Derivative Liability, Statement of Financial Position [Extensible Enumeration] |
Other current liabilities
|
Other current liabilities
|
| Other current liabilities | Non- Qualifying Derivative Instruments |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative liabilities, total gross derivative instruments as presented |
$ (2,361)
|
$ (703)
|
| Other current liabilities | Cash flow hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative liabilities, total gross derivative instruments as presented |
0
|
(9)
|
| Other current liabilities | Fair value hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative liabilities, total gross derivative instruments as presented |
0
|
0
|
| Other current liabilities | Foreign exchange contracts |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative liabilities, total gross derivative instruments as presented |
(508)
|
(364)
|
| Derivative liabilities, amounts available for offset |
16
|
17
|
| Derivative liabilities, total net derivative instruments |
(492)
|
(347)
|
| Other current liabilities | Foreign exchange contracts | Non- Qualifying Derivative Instruments |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative liabilities, total gross derivative instruments as presented |
(508)
|
(364)
|
| Other current liabilities | Foreign exchange contracts | Cash flow hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative liabilities, total gross derivative instruments as presented |
0
|
0
|
| Other current liabilities | Foreign exchange contracts | Fair value hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative liabilities, total gross derivative instruments as presented |
0
|
0
|
| Other current liabilities | Interest rate contracts |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative liabilities, total gross derivative instruments as presented |
(28)
|
(48)
|
| Derivative liabilities, amounts available for offset |
22
|
37
|
| Derivative liabilities, total net derivative instruments |
(6)
|
|
| Other current liabilities | Interest rate contracts | Non- Qualifying Derivative Instruments |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative liabilities, total gross derivative instruments as presented |
(28)
|
(39)
|
| Other current liabilities | Interest rate contracts | Cash flow hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative liabilities, total gross derivative instruments as presented |
0
|
(9)
|
| Other current liabilities | Interest rate contracts | Fair value hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative liabilities, total gross derivative instruments as presented |
0
|
0
|
| Other current liabilities | Commodity contracts |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative liabilities, total gross derivative instruments as presented |
(1,825)
|
(300)
|
| Derivative liabilities, amounts available for offset |
1,253
|
192
|
| Derivative liabilities, total net derivative instruments |
(572)
|
(108)
|
| Other current liabilities | Commodity contracts | Non- Qualifying Derivative Instruments |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative liabilities, total gross derivative instruments as presented |
(1,825)
|
(300)
|
| Other current liabilities | Commodity contracts | Cash flow hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative liabilities, total gross derivative instruments as presented |
0
|
0
|
| Other current liabilities | Commodity contracts | Fair value hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative liabilities, total gross derivative instruments as presented |
0
|
0
|
| Other long-term liabilities |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative liabilities, total gross derivative instruments as presented |
(1,319)
|
(995)
|
| Derivative liabilities, amounts available for offset |
107
|
71
|
| Derivative liabilities, total net derivative instruments |
$ (1,212)
|
$ (924)
|
| Derivative Liability, Statement of Financial Position [Extensible Enumeration] |
Other Liabilities, Noncurrent
|
Other Liabilities, Noncurrent
|
| Other long-term liabilities | Non- Qualifying Derivative Instruments |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative liabilities, total gross derivative instruments as presented |
$ (1,251)
|
$ (961)
|
| Other long-term liabilities | Cash flow hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative liabilities, total gross derivative instruments as presented |
0
|
0
|
| Other long-term liabilities | Fair value hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative liabilities, total gross derivative instruments as presented |
(68)
|
(34)
|
| Other long-term liabilities | Foreign exchange contracts |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative liabilities, total gross derivative instruments as presented |
(1,087)
|
(819)
|
| Derivative liabilities, amounts available for offset |
28
|
24
|
| Derivative liabilities, total net derivative instruments |
(1,059)
|
(795)
|
| Other long-term liabilities | Foreign exchange contracts | Non- Qualifying Derivative Instruments |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative liabilities, total gross derivative instruments as presented |
(1,087)
|
(819)
|
| Other long-term liabilities | Foreign exchange contracts | Cash flow hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative liabilities, total gross derivative instruments as presented |
0
|
0
|
| Other long-term liabilities | Foreign exchange contracts | Fair value hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative liabilities, total gross derivative instruments as presented |
0
|
0
|
| Other long-term liabilities | Interest rate contracts |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative liabilities, total gross derivative instruments as presented |
(119)
|
(84)
|
| Derivative liabilities, amounts available for offset |
52
|
27
|
| Derivative liabilities, total net derivative instruments |
(67)
|
(57)
|
| Other long-term liabilities | Interest rate contracts | Non- Qualifying Derivative Instruments |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative liabilities, total gross derivative instruments as presented |
(51)
|
(50)
|
| Other long-term liabilities | Interest rate contracts | Cash flow hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative liabilities, total gross derivative instruments as presented |
0
|
0
|
| Other long-term liabilities | Interest rate contracts | Fair value hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative liabilities, total gross derivative instruments as presented |
(68)
|
(34)
|
| Other long-term liabilities | Commodity contracts |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative liabilities, total gross derivative instruments as presented |
(113)
|
(92)
|
| Derivative liabilities, amounts available for offset |
27
|
20
|
| Derivative liabilities, total net derivative instruments |
(86)
|
(72)
|
| Other long-term liabilities | Commodity contracts | Non- Qualifying Derivative Instruments |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative liabilities, total gross derivative instruments as presented |
(113)
|
(92)
|
| Other long-term liabilities | Commodity contracts | Cash flow hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative liabilities, total gross derivative instruments as presented |
0
|
0
|
| Other long-term liabilities | Commodity contracts | Fair value hedges | Designated as hedging instrument |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Derivative liabilities, total gross derivative instruments as presented |
$ 0
|
$ 0
|
| Long-term Investments |
|
|
| TOTAL DERIVATIVE INSTRUMENTS |
|
|
| Debt and Equity Securities, Fair Value by Fair Value Hierarchy Level [Extensible Enumeration] |
Long-Term Investments
|
|