v3.26.1
Research, Development and Engineering (Tables)
3 Months Ended
Mar. 31, 2026
Research and Development [Abstract]  
Summary of research, development & engineering activities RD&E costs are charged to expense as incurred unless the Company has a contractual guarantee of reimbursement from the customer, in which case the related costs are capitalized. Total RD&E expenses, net of customer reimbursements, amounted to the following:
Three Months Ended
March 31,
20262025
(Dollars in millions)
Research, development and engineering costs$37 $40