v3.26.3
Leases (Tables)
 9 Months Ended
Sep. 30, 2026
Leases [Abstract]  
Summary of components of lease expense
The components of lease expense are as follows:
Three Months Ended
September 30,
Nine Months Ended
September 30,
2026202520262025
(Dollars in millions)
Operating lease cost$4$4$13$13
Short-term lease cost1—31
Total lease cost$5$4$16$14
Summary of supplemental cash flow information related to operating leases
Supplemental cash flow information related to operating leases is as follows:
Three Months Ended
September 30,
Nine Months Ended
September 30,
2026202520262025
(Dollars in millions)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash outflows from operating leases
$4 $4 $12 $12 
Right-of-use assets obtained in exchange for lease obligations:
Operating leases11 — 18 4 
Summary of supplemental balance sheet information related to operating leases
Supplemental balance sheet information related to operating leases is as follows:
September 30,
2026		December 31,
2025
(Dollars in millions)
Other assets$56 $49 
Accrued liabilities14 13 
Other liabilities44 38 
September 30,
2026		December 31, 2025
Weighted-average remaining lease term (in years)6.486.43
Weighted-average discount rate5.74 %6.25 %
Schedule of maturities of operating lease liabilities
Maturities of operating lease liabilities as of September 30, 2026 were as follows:
(Dollars in millions)
2026$5 
202717 
202812 
20298 
20306 
Thereafter22 
Total lease payments70 
Less imputed interest(12)
$58