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Capital - Disclosure of Cash Flow Statement (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Disclosure of classes of share capital [line items] |  |  |
Cash flow from operating activities | $ 1,464 | $ 877 | $ 1,001
Increase (decrease) in cash flow from operating activities | 587 |  |
Change in non-cash working capital | (124) | 316 | (174)
Increase (decrease) in change in non-cash working capital | (440) |  |
Cash flow from operations before changes in working capital | 1,340 | 1,193 | 827
Increase (decrease) in cash flow from operations before changes in working capital | 147 |  |
Distributions paid to subsidiaries’ non-controlling interests | 223 | 187 | 156
Increase (decrease) in dividends paid to non controlling interests | (36) |  |
Property, plant and equipment expenditures | 875 | 918 | 480
Increase (decrease) in property, plant and equipment expenditure | 43 |  |
Net inflows (outflows) of cash | 133 | (9) |
Increase (decrease) in net inflows (outflows) of cash | 142 |  |
Committed syndicated bank facility | Committed credit facilities |  |  |
Disclosure of classes of share capital [line items] |  |  |
Undrawn borrowing capacity | 1,400 | 1,000 |
Common shares |  |  |
Disclosure of classes of share capital [line items] |  |  |
Dividends paid | 58 | 54 | 48
Increase (decrease) in dividends paid | (4) |  |
Preferred shares |  |  |
Disclosure of classes of share capital [line items] |  |  |
Dividends paid | 51 | $ 43 | $ 39
Increase (decrease) in dividends paid | $ (8) |  |

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