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Asset Retirement Obligations (Tables)

6 Months Ended

Mar. 31, 2023

Asset Retirement Obligation Disclosure [Abstract]

Asset Retirement Obligation Activity

Asset Retirement Obligation Activity
			Nuclear						Non-Nuclear						Total
Balance at September 30, 2022			$	3,643					$	3,519					$	7,162		(1)
Settlements			—						(122)						(122)			(2)
Revisions in estimate			6						(27)						(21)
Accretion (recorded as regulatory asset)			82						35						117
Balance at March 31, 2023			$	3,731					$	3,405					$	7,136		(1)

Notes

(1) Includes $270 million and $275 million at March 31, 2023, and September 30, 2022, respectively, in Current liabilities.

(2) Settlements include the change in asset retirement obligation project accruals included in Accounts payable and accrued liabilities of ($72) million.

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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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 410
-SubTopic 20
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849

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