Receivables, Loans, Notes Receivable, and Others (Tables)

6 Months Ended

Jun. 30, 2023

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 condensed consolidated balance sheets, and the related “Income from equity affiliates”:

					(Income) Loss from Equity Affiliates
	Book Value at				Three Months Ended June 30,				Six Months Ended June 30,
	June 30, 2023		December 31, 2022		2023		2022		2023		2022
	(Dollars in millions)
Equity method investment related to Middlemount	$	33.1	$	27.1	$	(4.1)	$	(49.5)	$	(6.7)	$	(95.2)
Equity method investment related to R3	7.8		7.0		1.8		0.8		2.6		1.8
Total equity method investments	$	40.9	$	34.1	$	(2.3)	$	(48.7)	$	(4.1)	$	(93.4)