v3.26.1
PENSION AND POSTRETIREMENT PLANS (Tables)
3 Months Ended
Mar. 31, 2026
PENSION AND POSTRETIREMENT PLANS  
Net periodic pension and postretirement health care benefit costs

The components of net periodic pension and postretirement health care benefit expense for the first quarter ended March 31 are as follows:

U.S.

International

U.S. Postretirement

Pensions

Pensions

Benefits

(millions)

  ​ ​ ​

2026

2025

  ​ ​ ​

2026

2025

  ​ ​ ​

2026

2025

 

Service cost

$12.8

$11.7

$5.1

$4.6

-

$0.1

Interest cost on benefit obligation

 

21.0

22.9

11.5

10.7

1.1

1.3

Expected return on plan assets

 

(36.2)

(37.6)

(12.7)

(12.4)

-

-

Recognition of net actuarial loss (gain)

6.5

2.1

2.1

2.1

(0.8)

(0.9)

Amortization of prior service benefit

(1.2)

(1.1)

(0.1)

(0.1)

-

-

Total expense (benefit)

$2.9

($2.0)

$5.9

$4.9

$0.3

$0.5