Geographic and Customer Concentrations (Tables)

12 Months Ended

Dec. 31, 2024

Revenues [Abstract]

Schedule of operating revenues by geographic region

For the years ended December 31, 2024 and 2023, all of our assets were in North America. The table below shows our operating revenue for the years ended December 31, 2024, 2023 and 2022 by geographic region:

	Revenue
	Years Ended December 31,
	2024		2023	2022
	(Dollars in millions)
North America	$	6,331	6,345	6,256
Europe, Middle East and Africa(2)	118		628	734
Latin America(1)	47		64	503
Total	$	6,496	7,037	7,493

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(1)Includes revenue prior to closing the sale of the Latin American business on August 1, 2022, revenue recognized through post-closing commercial agreements subsequent to the sale and revenue related to servicing our customers in those regions.

(2)Includes revenue prior to closing the sale of the EMEA business on November 1, 2023.