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Other Assets - Schedule of Other Assets (Detail) - CAD ($) $ in Millions |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
Jun. 08, 2022 | Jun. 30, 2022 | Jun. 30, 2021 | [1] | Jun. 30, 2022 | Jun. 30, 2021 | [1] | Dec. 31, 2021
Disclosure of classes of share capital [Line Items] |  |  |  |  |  |
Intangible Assets |  | $ 73 |  | $ 73 |  | $ 78
Private Equity Investments |  | 53 |  | 53 |  | 53
Other Equity Investments |  | 0 |  | 0 |  | 77
Net Investment in Finance Leases |  | 63 |  | 63 |  | 60
Long-Term Receivables and Prepaids |  | 53 |  | 53 |  | 77
Precious Metals |  | 79 |  | 79 |  | 85
Other |  | 2 |  | 2 |  | 1
Other assets |  | 323 |  | 323 |  | $ 431
Before-tax gain on disposal |  | $ 62 | $ 60 | $ 304 | $ 72 |
Headwater Exploration Inc. |  |  |  |  |  |
Disclosure of classes of share capital [Line Items] |  |  |  |  |  |
Proceeds from disposal of oil and gas assets | $ 110 |  |  |  |  |
[1] | See Note 3 for revisions to prior period results.

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