Supplemental Disclosure of Cash Flow Information - Supplemental Schedule of Cash Flow Information (Details) - CAD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Changes in Non-Cash Working Capital [Abstract] | |||
| Accounts receivable | $ 125 | $ (940) | $ 368 |
| Inventory | 166 | (616) | (219) |
| Prepaids and other | (22) | (42) | (23) |
| Accounts payable | 84 | (340) | 78 |
| Accrued liabilities | (316) | 851 | (812) |
| Adjustments For Increase (Decrease) In Current Tax Liabilities | 504 | 326 | (1,558) |
| Other long-term liabilities | 23 | (106) | (200) |
| Net changes in non-cash working capital | 564 | (867) | (2,366) |
| Relating to: | |||
| Operating activities | 672 | (743) | (2,417) |
| Investing activities | $ (108) | $ (124) | $ 51 |
| X | ||||||||||
- Definition Adjustments For Decrease (Increase) In Current Prepayments And Other Current Assets No definition available.
|
| X | ||||||||||
- Definition Adjustments For Increase (Decrease) In Accrued Liabilities No definition available.
|
| X | ||||||||||
- Definition Adjustments For Increase (Decrease) In Current Tax Liabilities No definition available.
|
| X | ||||||||||
- Definition Changes in Non-Cash Working Capital No definition available.
|
| X | ||||||||||
- Definition Increase (Decrease) In Working Capital, Investing Activities No definition available.
|
| X | ||||||||||
- Definition Increase (Decrease) In Working Capital, Operating Activities No definition available.
|
| X | ||||||||||
- Definition Relating To No definition available.
|
| X | ||||||||||
- References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Adjustments for increase (decrease) in other liabilities to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Other liabilities; Profit (loss)] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Adjustments for increase (decrease) in trade and other payables to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Trade and other payables; Profit (loss)] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition The increase (decrease) in working capital. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|