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Employee Benefits - Weighted-Average Assumptions Used to Determine Future Benefit Obligations (Details) - Pension Plan
Dec. 31, 2025
Dec. 31, 2024
U.K.    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Discount rate 5.56% 5.55%
Underlying price inflation 2.29% 2.44%
U.K. | Minimum    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Rate of compensation increase 3.29% 3.44%
U.K. | Maximum    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Rate of compensation increase 3.69% 3.94%
Other    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Underlying price inflation 2.00% 2.00%
Other | Minimum    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Discount rate 4.20% 3.26%
Rate of compensation increase 1.00% 1.00%
Other | Maximum    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Discount rate 4.78% 4.63%
Rate of compensation increase 3.00% 3.00%
U.S. | Minimum    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Discount rate 4.58% 5.18%
U.S. | Maximum    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Discount rate 5.28% 5.52%