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Other Long-Term Obligations (Detail) - CAD ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Schedule of Other Liabilities [Line Items] |  |  |
Employee retirement benefits | [1] | $ 1,822 | $ 1,195
Asset retirement obligations and other environmental liabilities | [2],[3] | 1,388 | 1,435
Share-based incentive compensation liabilities |  | 65 | 78
Operating lease liability | [4] | 143 |
Other obligations |  | 219 | 235
Total other long-term obligations | [5] | $ 3,637 | $ 2,943
[1] | Total recorded employee retirement benefits obligations also included $58 million in current liabilities (2018 – $55 million).
[2] | For 2019, the asset retirement obligations were discounted at 6 percent (2018 - 6 percent).
[3] | Total asset retirement obligations and other environmental liabilities also included $124 million in current liabilities (2018 – $118 million).
[4] | Effective January 1, 2019, Imperial adopted the Financial Accounting Standards Board’s standard, Leases (Topic 842), as amended. The standard requires all leases to be recorded on the balance sheet as a right of use asset and liability. The long-term lease liability for operating leases is included in Other long-term obligations (see note 14).
[5] | Other long-term obligations included amounts to related parties of $0 million (2018 – $15 million), (note 17).

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