XML 191 R156.htm IDEA: XBRL DOCUMENT v3.22.4

Credit Facilities, Long-Term Debt and Lease Liabilities - Currency Impacts (Details) $ in Millions, $ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2022 CAD ($)	Dec. 31, 2022 AUD ($)	Dec. 31, 2021 CAD ($)	Dec. 31, 2021 AUD ($)	Dec. 31, 2020 CAD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Disclosure of detailed information about borrowings [line items]
Net increase (decrease) in borrowings under credit facilities	$ (449)		$ 114		$ 106
USD | Senior Notes and Tax Equity
Disclosure of detailed information about borrowings [line items]
Notional amount						$ 41	$ 1
AUD | Non-Recourse Senior Secured Notes
Disclosure of detailed information about borrowings [line items]
Net increase (decrease) in borrowings under credit facilities		$ (9)		$ (40)

X

- Definition

The cash inflow (outflow) due to an increase (decrease) in current borrowings. [Refer: Current borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 7
-IssueDate 2022-03-24
-Paragraph 17
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2022-en-r&anchor=para_17&doctype=Standard
-URIDate 2022-03-24

+ Details

Name:	ifrs-full_CashFlowsFromUsedInIncreaseDecreaseInCurrentBorrowings
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- 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

Name:	ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The nominal or face amount of a financial instrument, used to calculate payments made on that instrument.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2022-03-24
-Paragraph 112
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_112_c&doctype=Standard
-URIDate 2022-03-24

+ Details

Name:	ifrs-full_NotionalAmount
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	tac_PortionDenominatedInForeignCurrencyAxis=currency_USD
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=tac_SeniorNotesAndTaxEquityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	tac_PortionDenominatedInForeignCurrencyAxis=currency_AUD
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=tac_NonRecourseSeniorSecuredNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: