Revenue Recognition and Contracts with Customers (Tables)

12 Months Ended

Dec. 31, 2024

Revenue from Contract with Customer [Abstract]

Summary of Contract Assets and Liabilities

The following table summarizes our contract assets and liabilities balances:

	2024		2023
	(Dollars in millions)
Contract assets—January 1	$	38	$	46
Contract assets—December 31,	40		38
Change in contract assets—Increase/(Decrease)	$	2	$	(8)
Contract liabilities—January 1	$	(11)	$	(8)
Contract liabilities—December 31,	(8)		(11)
Change in contract liabilities—(Increase)/Decrease	$	3	$	(3)