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Defined Benefit Obligation and Other Long-Term Liabilities (Details) - CAD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Subclassifications of assets, liabilities and equities [abstract]
Defined benefit obligation	$ 228	$ 282
Long-term incentive accruals	4	4
Other	21	12
Total	253	$ 298
Increase (decrease) in net defined benefit liability (asset)	$ (54)

X

- Definition

The amount of accruals classified as non-current. [Refer: Accruals]

+ References

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- Definition

The increase (decrease) in the net defined benefit liability (asset). [Refer: Net defined benefit liability (asset)]

+ References

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- Definition

The amount of non-current net defined benefit liability. [Refer: Net defined benefit liability]

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- Definition

The amount of non-current liabilities that the entity does not separately disclose in the same statement or note. [Refer: Non-current liabilities]

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- Definition

Non-current Defined Benefit Obligation And Other Long-term Liabilities

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