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Investments - Summarized financial information (Details) - CAD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Disclosure of subsidiaries [line items] |  |  |  |
Revenues | $ 2,721 | $ 2,101 | $ 2,347 |
Depreciation and amortization | 529 | 654 | 590 |
Net interest expense | (245) | (238) | (179) |
Net earnings (loss) | (425) | (253) | 176 |
Other comprehensive income | (185) | (102) | (45) |
Total comprehensive earnings (loss) | (610) | (355) | 131 |
Current liabilities | (1,931) | (935) |  |
Assets | 9,226 | 9,747 |  |
Cash and cash equivalents | $ 947 | $ 703 | $ 411 | $ 89

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