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Employee Benefit Plans - Contributions and Narrative (Details)
£ in Millions
1 Months Ended
Apr. 30, 2023
USD ($)
Apr. 30, 2023
GBP (£)
Sep. 30, 2023
USD ($)
Dec. 31, 2022
U.S. Plans | Qualified Plan | Pension Benefits        
Schedule of Defined Benefit Plans Disclosures [Line Items]        
Mandatory future contributions     $ 30,000,000  
U. K        
Schedule of Defined Benefit Plans Disclosures [Line Items]        
Pension award payment percentage 6.50% 6.50%    
Increase to PBO $ 36,000,000 £ 28    
PBO (as percent)       1.50%
Actuarial gain (loss) $ 48,000,000 £ 38