XML 218 R9999.htm IDEA: XBRL DOCUMENT v3.10.0.1

Label	Element	Value
Cumulative Effect of New Accounting Principle in Period of Adoption	tac_CumulativeEffectofNewAccountingPrincipleinPeriodofAdoption	$ (13,000,000)
Equity, Adjusted Balance	tac_EquityAdjustedBalance	4,372,000,000
Accumulated other comprehensive income [member]
Equity, Adjusted Balance	tac_EquityAdjustedBalance	489,000,000
Issued capital [member]
Equity, Adjusted Balance	tac_EquityAdjustedBalance	3,094,000,000
Additional paid-in capital [member]
Equity, Adjusted Balance	tac_EquityAdjustedBalance	10,000,000
Retained earnings [member]
Cumulative Effect of New Accounting Principle in Period of Adoption	tac_CumulativeEffectofNewAccountingPrincipleinPeriodofAdoption	(14,000,000)
Equity, Adjusted Balance	tac_EquityAdjustedBalance	(1,223,000,000)
Preference shares [member]
Equity, Adjusted Balance	tac_EquityAdjustedBalance	942,000,000
Equity attributable to owners of parent [member]
Cumulative Effect of New Accounting Principle in Period of Adoption	tac_CumulativeEffectofNewAccountingPrincipleinPeriodofAdoption	(14,000,000)
Equity, Adjusted Balance	tac_EquityAdjustedBalance	3,312,000,000
Non-controlling interests [member]
Cumulative Effect of New Accounting Principle in Period of Adoption	tac_CumulativeEffectofNewAccountingPrincipleinPeriodofAdoption	1,000,000
Equity, Adjusted Balance	tac_EquityAdjustedBalance	$ 1,060,000,000

X

- Definition

Cumulative Effect of New Accounting Principle in Period of Adoption

+ References

No definition available.

+ Details

Name:	tac_CumulativeEffectofNewAccountingPrincipleinPeriodofAdoption
Namespace Prefix:	tac_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Equity, Adjusted Balance

+ References

No definition available.

+ Details

Name:	tac_EquityAdjustedBalance
Namespace Prefix:	tac_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	ifrs-full_ComponentsOfEquityAxis=ifrs-full_AccumulatedOtherComprehensiveIncomeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ComponentsOfEquityAxis=ifrs-full_IssuedCapitalMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ComponentsOfEquityAxis=ifrs-full_AdditionalPaidinCapitalMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ComponentsOfEquityAxis=ifrs-full_RetainedEarningsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ComponentsOfEquityAxis=ifrs-full_PreferenceSharesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ComponentsOfEquityAxis=ifrs-full_EquityAttributableToOwnersOfParentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ComponentsOfEquityAxis=ifrs-full_NoncontrollingInterestsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: