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Benefit Plans (Tables)

6 Months Ended

Mar. 31, 2021

Retirement Benefits [Abstract]

Components of TVA's Benefit Plans

The components of net periodic benefit cost and other amounts recognized as changes in regulatory assets for the three and six months ended March 31, 2021 and 2020, were as follows:

Components of TVA's Benefit Plans(1)
			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
			2021						2020						2021						2020						2021						2020						2021						2020
Service cost			$	14					$	15					$	4					$	4					$	28					$	27					$	9					$	8
Interest cost			93						104						4						4						184						208						8						8
Expected return on plan assets			(123)						(122)						—						—						(246)						(244)						—						—
Amortization of prior service credit			(25)						(24)						(4)						(6)						(49)						(48)						(9)						(12)
Recognized net actuarial loss			115						109						2						3						227						218						5						5
Total net periodic benefit cost as actuarially determined			74						82						6						5						144						161						13						9
Amount expensed / (capitalized) due to actions of regulator			2						(6)						—						—						9						(8)						—						—
Total net periodic benefit cost			$	76					$	76					$	6					$	5					$	153					$	153					$	13					$	9

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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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (h)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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