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Employee Benefit and Retirement Plans
 3 Months Ended
Mar. 31, 2024
Retirement Benefits [Abstract]  
Employee Benefit and Retirement Plans Employee Benefit and Retirement Plans
The components of pension and postretirement benefit (income) expense for the periods indicated, are as follows (in millions):
Pension Benefits
U.S.International
Three Months Ended March 31,
2024202320242023
Service cost$— $— $1 $1 
Interest cost8 11 2 4 
Expected return on plan assets(11)(14)(1)(3)
Amortization— 1 — 1 
Total (income) expense$(3)$(2)$2 $3 
Postretirement Benefits
Three Months Ended
March 31,
20242023
Amortization$(1)$(2)
Total income$(1)$(2)

Other

In January 2024, the Company received a court ruling with respect to determining the benefits pensioners should have received upon converting their defined benefit to a defined contribution. As the legal proceeding is concluded, the Company reduced its underlying pension obligation by approximately $11 million, with a corresponding offset to AOCL.