Leases (Tables)

12 Months Ended

Dec. 31, 2024

Lease expense consisted of the following:


	Years Ended December 31,
	2024		2023	2022
	(Dollars in millions)
Operating and short-term lease cost	$	23	26	25
Finance lease cost:
Amortization of right-of-use assets	1		1	1

Total finance lease cost	1		1	1
Total lease cost	$	24	27	26

Supplemental consolidated cash flow statement information related to leases is included below:


	Years Ended December 31,
	2024		2023
	(Dollars in millions)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases	$	24	35

Financing cash flows for finance leases	1		2
Supplemental lease cash flow disclosures
Operating lease right-of-use assets obtained in exchange for new operating lease liabilities	$	20	15
Right-of-use assets obtained in exchange for new finance lease liabilities	—		3

Supplemental consolidated balance sheet information and other information related to leases is included below:


		As of December 31,
Leases (Dollars in millions)	Classification on the Balance Sheet	2024			2023
Assets
Operating lease assets	Other, net	$	64		65
Finance lease assets	Property, plant and equipment, net of accumulated depreciation	6			7
Total leased assets		$	70		72

Liabilities
Current
Operating	Other	$	15		20
Finance	Current maturities of long-term debt	—			1
Noncurrent
Operating	Other	49			47
Finance	Long-term debt	3			3
Total lease liabilities		$	67		71

Weighted-average remaining lease term (years)
Operating leases		5.4			4.9
Finance leases		8.4			7.7
Weighted-average discount rate
Operating leases		10.52		%	4.83	%
Finance leases		5.05		%	5.89	%

As of December 31, 2024, maturities of lease liabilities were as follows:

As of December 31, 2024, maturities of lease liabilities were as follows: