Defined benefit plan employee minimum contribution percentage.

No definition available.

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- Definition

Reasonably Possible Decrease In Actuarial Assumption, Life Expectancy

+ References

No definition available.

+ Details

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- Definition

Reasonably Possible Increase In Actuarial Assumption, Life Expectancy

+ References

No definition available.

+ Details

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- Definition

Weighted average duration of defined benefit obligations.

+ References

No definition available.

+ Details

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

+ Details

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- Definition

The amount of employer contributions to retirement benefit plans.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 26
-IssueDate 2024-01-01
-Paragraph 35
-Subparagraph b
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=26&code=ifrs-tx-2024-en-r&anchor=para_35_b_i&doctype=Standard
-URIDate 2024-03-27

+ Details

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- Definition

The estimate of the expected contributions to be made to a defined benefit plan for the next annual reporting period. [Refer: Defined benefit plans [domain]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2024-01-01
-Paragraph 147
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_147_b&doctype=Standard
-URIDate 2024-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2024-01-01
-Paragraph 148
-Subparagraph d
-Clause iii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_148_d_iii&doctype=Standard
-URIDate 2024-03-27

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- Definition

The increase (decrease) in a defined benefit obligation that would have been caused by an increase in a significant actuarial assumption that was reasonably possible at the end of the reporting period. [Refer: Actuarial assumptions [domain]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2024-01-01
-Paragraph 145
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_145_a&doctype=Standard
-URIDate 2024-03-27

+ Details

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- Definition

The reasonably possible percentage of the decrease in the actuarial assumption used to determine the present value of defined benefit obligation. [Refer: Actuarial assumptions [domain]]

+ References

+ Details

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- Definition

The reasonably possible percentage of the increase in the actuarial assumption used to determine the present value of defined benefit obligation. [Refer: Actuarial assumptions [domain]]

+ References

+ Details

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Pensions and Other Post-Employment Benefits - Additional Information (Detail) - CAD ($)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Future Salary Growth Rate
Disclosure of defined benefit plans [line items]
Percentage of reasonably possible decrease in actuarial assumption		1.00%
Percentage of reasonably possible increase in actuarial assumption		1.00%
Increase		$ 0
Health Care Cost Trend Rate
Disclosure of defined benefit plans [line items]
Percentage of reasonably possible decrease in actuarial assumption		1.00%
Percentage of reasonably possible increase in actuarial assumption		1.00%
Increase		$ 0
One Year Change in Assumed Life Expectancy
Disclosure of defined benefit plans [line items]
Reasonably possible increase in actuarial assumption, life expectancy		1 year
Reasonably possible decrease in actuarial assumption, life expectancy		1 year
Increase		$ 0
Actuarial assumption of discount rates
Disclosure of defined benefit plans [line items]
Percentage of reasonably possible decrease in actuarial assumption		1.00%
Percentage of reasonably possible increase in actuarial assumption		1.00%
Increase		$ (56,000,000)	$ (54,000,000)
DB Pension Plan
Disclosure of defined benefit plans [line items]
Weighted average duration		16 years
Percentage of employees contribution under pension plan		4.00%
Employer contribution		$ 12,000,000
OPEB Plans
Disclosure of defined benefit plans [line items]
Weighted average duration		14 years
OPEB Plans \| Forecast
Disclosure of defined benefit plans [line items]
Estimate of contributions expected to be paid to plan for next annual reporting period	$ 12,000,000