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Employee Benefits - Weighted-Average Assumptions Used to Determine Future Benefit Obligations (Details) - Pension Plan
Dec. 31, 2024
Dec. 31, 2023
U.K.    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Discount rate 5.55% 4.58%
Underlying price inflation 2.44% 2.33%
U.K. | Minimum    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Rate of compensation increase 3.44% 3.38%
U.K. | Maximum    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Rate of compensation increase 3.94% 3.88%
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 3.26% 2.95%
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 4.63% 4.65%
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 5.18% 4.60%
U.S. | Maximum    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Discount rate 5.52% 4.84%