Guarantor Obligations, Additional Amount

No definition available.

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Namespace Prefix:	tln_
Data Type:	xbrli:monetaryItemType
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Period Type:	duration

- Definition

Guarantor Obligations, Maximum Of Principal Amount Of Outstanding Loans, Percentage

+ References

No definition available.

+ Details

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Data Type:	xbrli:pureItemType
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- Definition

The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482425/460-10-50-4

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

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- Details

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- Details

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Namespace Prefix:
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Commitment and Contingencies - Guarantees and Other Assurances (Details) $ in Millions	1 Months Ended	12 Months Ended
	Apr. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)	Jun. 30, 2024 USD ($)
Other Commitments [Line Items]
Guarantor obligations, maximum percentage		0.23
Subsidiary, TES
Other Commitments [Line Items]
LC's issued		$ 50
Surety Bond
Other Commitments [Line Items]
Surety bonds		240	$ 235
Surety Bond \| Subsidiary, TES
Other Commitments [Line Items]
Surety bonds		$ 115	$ 125
Additional surety bonds	$ 7