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Asset Retirement Obligations Asset Retirement Obligations (Tables)

12 Months Ended

Sep. 30, 2023

Asset Retirement Obligation Disclosure [Abstract]

Asset Retirement Obligation Activity

Asset Retirement Obligation Activity (in millions)
			Nuclear						Non-Nuclear						Total
Balance at September 30, 2021			$	3,428					$	3,574					$	7,002
Settlements			(2)						(309)						(311)
Revisions in estimate			61						186						247
Accretion (recorded as regulatory asset)			156						68						224
Balance at September 30, 2022			3,643						3,519						7,162			(1)
Settlements			(8)						(271)						(279)
Revisions in estimate			7						362						369
Accretion (recorded as regulatory asset)			166						71						237
Balance at September 30, 2023			$	3,808					$	3,681					$	7,489		(1)

Note

(1) Includes $272 million and $275 million at September 30, 2023 and 2022, respectively, in Current liabilities.

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- References

No definition available.

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- Definition

Tabular disclosure of the carrying amount of a liability for asset retirement obligations.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 410
-SubTopic 20
-Name Accounting Standards Codification
-Paragraph 1
-Section 50
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481850/410-20-50-1

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