Leases (Tables)

12 Months Ended

Dec. 31, 2022

Lease expense consisted of the following:


	Years Ended December 31,
	2022		2021	2020
	(Dollars in millions)
Operating and short-term lease cost	$	25	26	67
Finance lease cost:
Amortization of right-of-use assets	1		1	5

Total finance lease cost	1		1	5
Total lease cost	$	26	27	72

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


	Years Ended December 31,
	2022		2021
	(Dollars in millions)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases	$	40	36
Operating cash flows for finance leases	—		—
Financing cash flows for finance leases	1		1
Supplemental lease cash flow disclosures
Operating lease right-of-use assets obtained in exchange for new operating lease liabilities	$	23	18
Right-of-use assets obtained in exchange for new finance lease liabilities	1		—

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	2022			2021
Assets
Operating lease assets	Other, net	$	68		69
Finance lease assets	Property, plant and equipment, net of accumulated depreciation	5			5
Total leased assets		$	73		74

Liabilities
Current
Operating	Other	$	21		33
Finance	Current maturities of long-term debt	2			1
Noncurrent
Operating	Other	58			63
Finance	Long-term debt	2			1
Total lease liabilities		$	83		98

Weighted-average remaining lease term (years)
Operating leases		4.8			4.2
Finance leases		10.0			6.3
Weighted-average discount rate
Operating leases		4.08		%	3.97	%
Finance leases		4.08		%	6.21	%

As of December 31, 2022, maturities of lease liabilities were as follows: