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RETIREMENT PLANS
 3 Months Ended
Aug. 31, 2025
Retirement Benefits [Abstract]  
RETIREMENT PLANS
NOTE 6: RETIREMENT PLANS
We sponsor programs that provide retirement benefits to most of our employees. These programs include defined benefit pension plans, defined contribution plans, and postretirement healthcare plans. Key terms of our retirement plans are provided in our Annual Report.
Our retirement plans costs for the three-month periods ended August 31 were as follows (in millions):


20252024
Defined benefit pension plans

$47 $70 
Defined contribution plans

306 287 
Postretirement healthcare plans

22 22 


$375 $379 
Net periodic benefit cost of the pension and postretirement healthcare plans for the three-month periods ended August 31 included the following components (in millions):


U.S. Pension Plans

International Pension Plans

Postretirement Healthcare Plans


2025

2024

2025

2024

2025

2024
Service cost

$112 

$125 

$10 

$9 

$7 

$7 
Other retirement plans expense (income):






Interest cost

378 

361 

13 

12 

16 

16 
Expected return on plan assets

(457)

(430)

(7)

(5)

— 

— 
Amortization of prior service credit and other

(2)

(2)

— 

— 

(1)

(1)


(81)

(71)

6 

7 

15 

15 
Net periodic benefit cost

$31 

$54 

$16 

$16 

$22 

$22 
For 2026, no pension contributions are required for our tax-qualified U.S. domestic pension plan (“U.S. Pension Plan”) as it is fully funded under the Employee Retirement Income Security Act. We made voluntary contributions of $200 million to our U.S. Pension Plan during the three-month period ended August 31, 2025.