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Employee Benefit Plans (Narrative) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Defined Benefit Plan Change In Benefit Obligation [Line Items]      
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Accumulated Benefit Obligation $ 74 $ 66  
Defined Contribution Plan, Cost 27 23 $ 21
Pension Plans, Defined Benefit [Member]      
Defined Benefit Plan Change In Benefit Obligation [Line Items]      
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) 15 14 18
Defined Benefit Plan, Estimated Future Employer Contributions in Next Fiscal Year 7    
Other Postretirement Benefit Plans, Defined Benefit [Member]      
Defined Benefit Plan Change In Benefit Obligation [Line Items]      
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) 3 $ 4 $ 6
Defined Benefit Plan, Estimated Future Employer Contributions in Next Fiscal Year $ 3    
Debt Securities [Member]      
Defined Benefit Plan Change In Benefit Obligation [Line Items]      
Defined Benefit Plan, Target Allocation Percentage of Assets, Equity Securities 24.50% 40.00%  
Equity Securities [Member]      
Defined Benefit Plan Change In Benefit Obligation [Line Items]      
Defined Benefit Plan, Target Allocation Percentage of Assets, Equity Securities 75.50% 60.00%