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Equity Method Investments (Tables)

12 Months Ended

Dec. 31, 2024

Equity Method Investments and Joint Ventures [Abstract]

Equity Method Investments

The table below summarizes the book value of those investments, which are reported in “Investments and other assets” in the consolidated balance sheets, and the related “Income from equity affiliates”:

			Book Value at												(Income) Loss from Equity Affiliates
			December 31,												Year Ended December 31,
			2024						2023						2024						2023						2022
			(Dollars in millions)
Equity method investment related to Middlemount			$	52.7					$	42.5					$	(14.9)					$	(14.8)					$	(135.1)
Equity method investment related to R3			—						7.1						3.3						7.9						3.9
Equity method investment related to R3 II			5.8						—						0.1						—						—
Total equity method investments			$	58.5					$	49.6					$	(11.5)					$	(6.9)					$	(131.2)

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- References

No definition available.

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- Definition

Tabular disclosure of equity method investments including, but not limited to, name of each investee or group of investments, percentage ownership, difference between recorded amount of an investment and the value of the underlying equity in the net assets, and summarized financial information.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481687/323-10-50-3

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