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Pension and Other Post-Employment Benefits (Changes In Benefit Obligation And Fair Value Of Plan Assets) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Defined Benefit Plan Disclosure [Line Items]      
Fair Value of Plan Assets, Beginning of Year $ 110    
Fair Value of Plan Assets, End of Year 107 $ 110  
Non-Current Liabilities (75) (74)  
Defined Benefits [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Projected Benefit Obligation, Beginning of Year 124 138  
Service Cost 0 0 $ 0
Interest Cost 6 6 7
Actuarial (Gains) Losses (2) 3  
Exchange Differences 5 (11)  
Employee Contributions 0 0  
Benefits Paid (12) (12)  
Curtailment 0 0  
Projected Benefit Obligation, End of Year 121 124 138
Fair Value of Plan Assets, Beginning of Year 110 123  
Actual Return on Plan Assets 4 9  
Exchange Differences 6 (10)  
Employee Contributions 0 0  
Employer Contributions 0 0  
Benefits Paid (12) (12)  
Transfers to Defined Contribution Plan (1) 0  
Fair Value of Plan Assets, End of Year 107 110 123
Funded Status of Plan Assets, End of Year (14) (14)  
Other Assets 7 6  
Current Liabilities 0 0  
Non-Current Liabilities (21) (20)  
Total (14) (14)  
Net Actuarial (Gains) Losses 12 13  
Net Prior Service Costs (7) (7)  
Total Recognized in Accumulated Other Comprehensive Income, Before Tax 5 6  
OPEB [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Projected Benefit Obligation, Beginning of Year 45 48  
Service Cost 2 2 2
Interest Cost 2 2 2
Actuarial (Gains) Losses 0 (1)  
Exchange Differences 2 (1)  
Employee Contributions 1 1  
Benefits Paid (6) (6)  
Curtailment (2) 0  
Projected Benefit Obligation, End of Year 44 45 48
Fair Value of Plan Assets, Beginning of Year 0 0  
Actual Return on Plan Assets 0 0  
Exchange Differences 0 0  
Employee Contributions 1 1  
Employer Contributions 5 5  
Benefits Paid (6) (6)  
Transfers to Defined Contribution Plan 0 0  
Fair Value of Plan Assets, End of Year 0 0 $ 0
Funded Status of Plan Assets, End of Year (44) (45)  
Other Assets 0 0  
Current Liabilities (5) (5)  
Non-Current Liabilities (39) (40)  
Total (44) (45)  
Net Actuarial (Gains) Losses (67) (73)  
Net Prior Service Costs 6 7  
Total Recognized in Accumulated Other Comprehensive Income, Before Tax $ (61) $ (66)