v3.26.1
Leases (Tables)
 6 Months Ended
Jun. 30, 2026
Leases [Abstract]  
Summary of components of lease expense
The components of lease expense are as follows:
Three Months Ended
June 30,
Six Months Ended
June 30,
2026202520262025
(Dollars in millions)
Operating lease cost$4$5$9$9
Short-term lease cost1121
Total lease cost$5$6$11$10
Summary of supplemental cash flow information related to operating leases
Supplemental cash flow information related to operating leases is as follows:
Three Months Ended
June 30,
Six Months Ended
June 30,
2026202520262025
(Dollars in millions)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash outflows from operating leases
$4 $4 $8 $8 
Right-of-use assets obtained in exchange for lease obligations:
Operating leases2 2 7 4 
Summary of supplemental balance sheet information related to operating leases
Supplemental balance sheet information related to operating leases is as follows:
June 30,
2026		December 31,
2025
(Dollars in millions)
Other assets$49 $49 
Accrued liabilities13 13 
Other liabilities37 38 
 June 30,
2026		December 31, 2025
Weighted-average remaining lease term (in years)6.196.43
Weighted-average discount rate5.95 %6.25 %
Schedule of maturities of operating lease liabilities
Maturities of operating lease liabilities as of June 30, 2026 were as follows:
(Dollars in millions)
2026$9 
202714 
202810 
20296 
20304 
Thereafter16 
Total lease payments59 
Less imputed interest(9)
$50