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Benefit Plans (Tables)

6 Months Ended

Mar. 31, 2024

Retirement Benefits [Abstract]

Components of TVA's Benefit Plans

The components of net periodic benefit cost for the three and six months ended March 31, 2024 and 2023, were as follows:

Components of Net Periodic Benefit Cost(1) (in millions)
			For the Three Months Ended March 31																								For the Six Months Ended March 31
			Pension Benefits												Other Post-Retirement Benefits												Pension Benefits												Other Post-Retirement Benefits
			2024						2023						2024						2023						2024						2023						2024						2023
Service cost			$	8					$	7					$	2					$	3					$	15					$	16					$	5					$	6
Interest cost			145						142						6						6						289						284						11						11
Expected return on plan assets			(123)						(123)						—						—						(247)						(246)						—						—
Amortization of prior service credit			(23)						(22)						(5)						(5)						(45)						(44)						(9)						(9)
Recognized net actuarial loss (gain)			25						33						1						—						50						67						—						—
Total net periodic benefit cost as actuarially determined			32						37						4						4						62						77						7						8
Amount expensed due to actions of regulator			—						20						—						—						—						39						—						—
Net periodic benefit cost			$	32					$	57					$	4					$	4					$	62					$	116					$	7					$	8

Note

(1) The components of net benefit cost other than the service cost component are included in Other net periodic benefit cost on the Consolidated Statements of Operations.

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- References

No definition available.

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- Definition

Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 715
-SubTopic 20
-Subparagraph (h)
-Name Accounting Standards Codification
-Paragraph 1
-Section 50
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

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