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Capital - Disclosure of Cash Flow Statement (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Disclosure of classes of share capital [line items] |  |  |
Cash flow from operating activities | $ 877 | $ 1,001 | $ 702
Increase (decrease) in cash flow from operating activities | (124) |  |
Change in non-cash working capital | 316 | (174) | (89)
Increase (decrease) in change in non-cash working capital | 490 |  |
Cash flow from operations before changes in working capital | 1,193 | 827 | 613
Increase (decrease) in cash flow from operations before changes in working capital | 366 |  |
Distributions paid to subsidiaries’ non-controlling interests | 187 | 156 | 97
Increase (decrease) in dividends paid to non controlling interests | (31) |  |
Property, plant and equipment expenditures | 918 | 480 | 486
Increase (decrease) in property, plant and equipment expenditure | (438) |  |
Net inflows (outflows) of cash | (9) | 104 |
Increase (decrease) in net inflows (outflows) of cash | (113) |  |
Committed syndicated bank facility | Committed credit facilities |  |  |
Disclosure of classes of share capital [line items] |  |  |
Undrawn borrowing capacity | 1,000 | 1,300 |
Common shares |  |  |
Disclosure of classes of share capital [line items] |  |  |
Dividends paid | 54 | 48 | 47
Increase (decrease) in dividends paid | (6) |  |
Preferred shares |  |  |
Disclosure of classes of share capital [line items] |  |  |
Dividends paid | 43 | $ 39 | $ 39
Increase (decrease) in dividends paid | $ (4) |  |

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