Leases (Tables)

12 Months Ended

Dec. 31, 2022

Leases [Abstract]

Summary of Lease Cost

The following tables provide information about the Company’s operating leases. The Company has not identified any material finance leases as of December 31, 2022; therefore, the finance lease cost components have not been disclosed in the tables below.

Lease cost
(Dollars in millions)	Year ended December 31
	2022			2021
Operating lease cost	$	50		$	44
Short-term lease cost		9			10
Variable lease cost		4			4
Sublease income		(1	)		(2	)
Total lease cost	$	62		$	57

Summary of Other Information

Other information
(Dollars in millions)	Year ended or as of December 31,
	2022			2021
Cash paid for amounts included in the measurement of operating lease liabilities	$	42		$	46
Right-of-use assets obtained in exchange for new operating lease liabilities		74			41
Weighted-average remaining lease term - operating leases	9.7 years			6.7 years
Weighted-average discount rate - operating leases		2.8	%		2.1	%

Maturities of Operating Lease Liabilities

Maturities of operating lease liabilities (undiscounted cash flows) are as follows:
(Dollars in millions)
	Maturities
2023	$	41
2024		27
2025		22
2026		16
2027		13
Thereafter		67
Total operating lease payments		186
Less imputed interest		(27	)
Total operating lease liabilities	$	159