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Asset Retirement Obligations (Tables)

12 Months Ended

Dec. 31, 2023

Asset Retirement Obligation [Abstract]

Changes In Liability For Asset Retirement Obligations

Changes in our liability for asset retirement obligations for the years 2023 and 2022 are presented in the table below:

(in millions)			2023						2022
Beginning Balance			$	513.5					$	512.4
Accretion recorded as a regulatory asset/liability			20.0						17.1
Additions			23.5						9.5
Settlements			(41.6)						(22.3)
Change in estimated cash flows			37.6						(3.2)
Ending Balance			$	553.0					$	513.5

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- References

No definition available.

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- Definition

Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 410
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481850/410-20-50-1

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