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Employee Benefit Plans (Tables)
 12 Months Ended
Dec. 31, 2024
Postemployment Benefits [Abstract]  
Change in Benefit Obligation, Plan Assets and Funded Status of Defined Benefit Pension Plans

The change in benefit obligation, plan assets and the funded status of the defined benefit pension plans in the United Kingdom using a measurement date of December 31, 2023, is as follows (in millions):

 

 

Pension Benefits

 

At year end

 

2023

 

Benefit obligation at beginning of year

 

$

4

 

Actuarial loss (gain)

 

 

—

 

Plan settlements

 

 

(4

)

Foreign currency exchange rate changes

 

 

—

 

Benefit obligation at end of year

 

$

—

 

 

 

 

 

Fair value of plan assets at beginning of year

 

$

6

 

Actual return

 

 

—

 

Plan settlements

 

 

(5

)

Foreign currency exchange rate changes and other

 

 

(1

)

Fair value of plan assets at end of year

 

$

—

 

 

 

 

 

Funded status

 

 

—

 

Accumulated benefit obligation at end of year

 

$

—

 
Assumption Rates Used for Net Periodic Benefit Costs

The assumption rates used for net periodic benefit costs are as follows:

 

 

December 31,

 

 

2023

 

2022

Discount rate:

 

4.10% - 5.10%

 

1.20% - 1.80%

Expected return on assets:

 

4.00% - 5.12%

 

1.10% - 2.22%