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Income Taxes And Tax-Related Items Income Taxes And Tax-Related Items (Narrative) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Income before income taxes $ 888 $ 1,144 $ 1,476
Foreign-source income 57    
Liability for tax-related interest and penalties 1    
Unrecognized tax benefits that would impact the effective tax rate 6 5  
Deferred Tax Assets, Operating Loss Carryforwards, Federal (9) (5)  
State net operating loss carryforwards 2    
Deferred tax assets, federal valuation allowance 9 5  
Deferred tax assets, state valuation allowance $ 2 $ 1  
Minimum      
Operating Loss Carryforwards, Expiration Date - Federal 2029    
Operating Loss Carryforwards, Expiration Date - State 2024    
Maximum      
Operating Loss Carryforwards, Expiration Date - Federal 2035    
Operating Loss Carryforwards, Expiration Date - State 2028