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Employee Benefits (Sensitivity Analysis) (Details) - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Actuarial assumptions [Line Items]    
Defined benefit obligation $ 653 $ 664
Salary increases [Member] | Decrease 10% [Member]    
Actuarial assumptions [Line Items]    
Defined benefit obligation (10)  
Salary increases [Member] | Decrease 5% [Member]    
Actuarial assumptions [Line Items]    
Defined benefit obligation (5)  
Salary increases [Member] | Increase 5% [Member]    
Actuarial assumptions [Line Items]    
Defined benefit obligation 5  
Salary increases [Member] | Increase 10% [Member]    
Actuarial assumptions [Line Items]    
Defined benefit obligation 10  
Discount rate [Member] | Decrease 10% [Member]    
Actuarial assumptions [Line Items]    
Defined benefit obligation 28  
Discount rate [Member] | Decrease 5% [Member]    
Actuarial assumptions [Line Items]    
Defined benefit obligation 14  
Discount rate [Member] | Increase 5% [Member]    
Actuarial assumptions [Line Items]    
Defined benefit obligation (14)  
Discount rate [Member] | Increase 10% [Member]    
Actuarial assumptions [Line Items]    
Defined benefit obligation (28)  
Mortality table [Member] | Decrease 10% [Member]    
Actuarial assumptions [Line Items]    
Defined benefit obligation 14  
Mortality table [Member] | Decrease 5% [Member]    
Actuarial assumptions [Line Items]    
Defined benefit obligation 7  
Mortality table [Member] | Increase 5% [Member]    
Actuarial assumptions [Line Items]    
Defined benefit obligation (7)  
Mortality table [Member] | Increase 10% [Member]    
Actuarial assumptions [Line Items]    
Defined benefit obligation $ (14)