v3.25.2
Postretirement benefit plans
 6 Months Ended
Jun. 30, 2025
Retirement Benefits [Abstract]  
Postretirement benefit plans Postretirement benefit plans
Expenses related to defined benefit and retiree health care benefit plans are as follows:
U.S. Defined BenefitU.S. Retiree Health CareNon-U.S. Defined Benefit
For Three Months Ended June 30,202520242025202420252024
Service cost$2 $2 $1 $1 $3 $4 
Interest cost7 6 3 3 15 13 
Expected return on plan assets(6)(5)(3)(6)(17)(19)
Recognized net actuarial losses (gains)2 1 (1)— 1 3 
Net periodic benefit costs (credits)5 4 — (2)2 1 
Settlement losses3 — — — — — 
Total, including other postretirement losses (gains)$8 $4 $— $(2)$2 $1 
U.S. Defined BenefitU.S. Retiree Health CareNon-U.S. Defined Benefit
For Six Months Ended June 30,202520242025202420252024
Service cost$4 $4 $1 $1 $7 $8 
Interest cost13 12 6 6 29 27 
Expected return on plan assets(10)(11)(6)(9)(35)(38)
Recognized net actuarial losses (gains)4 2 (1)(1)2 6 
Net periodic benefit costs (credits)11 7 — (3)3 3 
Settlement losses3 — — — — — 
Total, including other postretirement losses (gains)$14 $7 $— $(3)$3 $3