v3.26.3
Pension Benefits (Tables)
 9 Months Ended
Sep. 30, 2026
Retirement Benefits [Abstract]  
Summary of net periodic benefit cost
Net periodic benefit costs for our significant defined benefit plans include the following components:
Three Months Ended September 30,Nine Months Ended September 30,
U.S. Plans Non-U.S. Plan U.S. Plans Non-U.S. Plan
20262025202620252026202520262025
(Dollars in millions)
Service cost$— $— $1 $2 $— $— $5 $5 
Interest cost2 2 1 1 6 6 3 3 
Expected return on plan assets(2)(2)(2)(2)(7)(6)(6)(5)
Amortization of prior service (credit)— — — — — — (1)(1)
Total$— $— $— $1 $(1)$— $1 $2