v3.26.1
Fair Value Of Financial Instruments Fair Value of Assets and Liabilities (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Oct. 20, 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Available-for-sale debt securities $ 59   $ 58 $ 149
Fair Value, Measurements, Recurring        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Available-for-sale debt securities 59   58  
Assets, Fair Value Disclosure 202   225  
Financial and Nonfinancial Liabilities, Fair Value Disclosure 0   1  
Fair Value, Measurements, Recurring | Commodity derivatives        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative Asset 67   85  
Fair Value, Measurements, Recurring | Foreign currency derivatives        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative Asset 76   82  
Derivative Liability 0   1  
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Available-for-sale debt securities 0   0  
Assets, Fair Value Disclosure 0   0  
Financial and Nonfinancial Liabilities, Fair Value Disclosure 0   0  
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 | Commodity derivatives        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative Asset 0   0  
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 | Foreign currency derivatives        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative Asset 0   0  
Derivative Liability 0   0  
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Available-for-sale debt securities 0   0  
Assets, Fair Value Disclosure 143   167  
Financial and Nonfinancial Liabilities, Fair Value Disclosure 0   1  
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Commodity derivatives        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative Asset 67   85  
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Foreign currency derivatives        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative Asset 76   82  
Derivative Liability 0   1  
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Available-for-sale debt securities 59   58  
Assets, Fair Value Disclosure 59   58  
Financial and Nonfinancial Liabilities, Fair Value Disclosure 0   0  
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | Commodity derivatives        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative Asset 0   0  
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | Foreign currency derivatives        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative Asset 0   0  
Derivative Liability 0   $ 0  
Fair Value, Nonrecurring [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Impairment, Long-Lived Asset, Held-for-Use $ 7 $ 5