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

3 Months Ended

Mar. 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 condensed consolidated balance sheets, and the related “Loss (income) from equity affiliates”:

					Loss (Income) from Equity Affiliates
	Book Value at				Three Months Ended March 31,
	March 31, 2024		December 31, 2023		2024		2023
	(Dollars in millions)
Equity method investment related to Middlemount	$	40.1	$	42.5	$	0.4	$	(2.6)
Equity method investment related to R3	8.3		7.1		3.3		0.8
Total equity method investments	$	48.4	$	49.6	$	3.7	$	(1.8)