v3.25.4
Employee Benefit Plans and Postretirement Benefits - Defined Benefit Pension Plans by Geographical Area (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Change in the fair value of plan assets:    
Beginning plan assets $ 1,077  
Ending plan assets 1,141 $ 1,077
U.S.    
Change in benefit obligations:    
Beginning benefit obligation 141 139
Service cost 1 1
Interest cost 7 7
Plan participants' contributions 0 0
Actuarial loss (gain) 5 0
Gross benefits paid (6) (6)
Plan amendments 0 0
Currency translation adjustments and other 0 0
Ending benefit obligation 148 141
Change in the fair value of plan assets:    
Beginning plan assets 162 161
Actual return on plan assets 6 6
Employer contributions 0 0
Plan participants' contributions 0 0
Gross benefits paid (6) (5)
Currency translation adjustments and other 0 0
Ending plan assets 162 162
Funded status: 14 21
U.K.    
Change in benefit obligations:    
Beginning benefit obligation 756 825
Service cost 0 0
Interest cost 39 36
Plan participants' contributions 0 0
Actuarial loss (gain) (9) (87)
Gross benefits paid (58) (51)
Plan amendments 0 16
Currency translation adjustments and other 55 17
Ending benefit obligation 783 756
Change in the fair value of plan assets:    
Beginning plan assets 683 707
Actual return on plan assets 34 (13)
Employer contributions 25 25
Plan participants' contributions 0 0
Gross benefits paid (58) (52)
Currency translation adjustments and other 52 16
Ending plan assets 736 683
Funded status: (47) (73)
Germany    
Change in benefit obligations:    
Beginning benefit obligation 98 117
Service cost 0 0
Interest cost 3 3
Plan participants' contributions 0 0
Actuarial loss (gain) (4) (5)
Gross benefits paid (11) (11)
Plan amendments 0 0
Currency translation adjustments and other 12 (6)
Ending benefit obligation 98 98
Change in the fair value of plan assets:    
Beginning plan assets 4 4
Actual return on plan assets 0 0
Employer contributions 0 0
Plan participants' contributions 0 0
Gross benefits paid 0 0
Currency translation adjustments and other 0 0
Ending plan assets 4 4
Funded status: (94) (94)
Others Countries    
Change in benefit obligations:    
Beginning benefit obligation 174 193
Service cost 7 9
Interest cost 5 6
Plan participants' contributions 0 1
Actuarial loss (gain) (8) (3)
Gross benefits paid (15) (17)
Plan amendments 0 0
Currency translation adjustments and other 20 (15)
Ending benefit obligation 183 174
Change in the fair value of plan assets:    
Beginning plan assets 169 177
Actual return on plan assets 10 14
Employer contributions 6 7
Plan participants' contributions 1 1
Gross benefits paid (14) (17)
Currency translation adjustments and other 19 (13)
Ending plan assets 191 169
Funded status: $ 8 $ (5)