XML 108 R73.htm IDEA: XBRL DOCUMENT
v3.22.4

Defined Benefit Obligation and Other Long-Term Liabilities (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2022
Subclassifications of assets, liabilities and equities [abstract] |
Disclosure of components of defined benefit obligations and other long-term liabilities | The components of defined benefit obligation and other long-term liabilities are as follows:
As at Dec. 31 | 2022 | 2021
Defined benefit obligation (Note 32) | 150 |  | 228 |
Long-term incentive accruals (Note 31) | 8 |  | 4 |
Retail power contract liability | 126 |  | — |
Other | 10 |  | 21 |
Total | 294 |  | 253 |

X
- References No definition available. + Details
Name: | ifrs-full_SubclassificationsOfAssetsLiabilitiesAndEquitiesAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Components of Noncurrent Defined Benefit Plan Liabilities and Other Long-Term Liabilities [Table Text Block] + References No definition available. + Details
Name: | tac_ComponentsofNoncurrentDefinedBenefitPlanLiabilitiesandOtherLongTermLiabilitiesTableTextBlock
Namespace Prefix: | tac_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration