ÈÕº«Èý¼¶Æ¬

Quarterly report [Sections 13 or 15(d)]

PENSIONS AND OTHER POSTRETIREMENT BENEFITS (Tables)

v3.25.1
PENSIONS AND OTHER POSTRETIREMENT BENEFITS (Tables)
3 Months Ended
Mar. 31, 2025
Postemployment Benefits [Abstract] Ìý
Schedule of Net Benefit Costs
The following are the components of defined benefit pension and OPEB costs (credits):
DEFINED BENEFIT PENSION COSTS (CREDITS)
Three Months Ended
March 31,
(In millions) 2025 2024
Service cost $ 7Ìý $ 7Ìý
Interest cost 53Ìý 55Ìý
Expected return on plan assets (79) (80)
Amortization:
Prior service costs 4Ìý 4Ìý
Net actuarial gain (2) —Ìý
Net periodic benefit credits $ (17) $ (14)
OPEB COSTS (CREDITS)
Three Months Ended
March 31,
(In millions) 2025 2024
Service cost $ 2Ìý $ 2Ìý
Interest cost 14Ìý 12Ìý
Expected return on plan assets (11) (11)
Termination benefits1
—Ìý 2Ìý
Amortization:
Prior service credits (3) (4)
Net actuarial gain (33) (38)
Net periodic benefit credits $ (31) $ (37)
1 The termination benefits relate to the announcement of the indefinite idle of our Weirton tinplate production plant.