v3.25.2
Debt - Narrative (Details) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended
May 31, 2025
Mar. 31, 2025
Jun. 30, 2025
Feb. 28, 2025
Dec. 31, 2024
Debt Instrument [Line Items]          
Total debt     $ 23,500   $ 24,300
Retired debt   $ 500      
Revolving Credit Facility          
Debt Instrument [Line Items]          
Project finance facility, maximum borrowing capacity       $ 5,500  
Minimum limit of debt for cross default provision     200    
Remaining borrowing capacity under revolving credit facility     5,500   $ 5,500
Letter of Credit | Maximum          
Debt Instrument [Line Items]          
Line of credit facility, capacity available for specific purpose other than for trade purchases     500    
Notes | 3.35% Debentures due 2025          
Debt Instrument [Line Items]          
Retired debt $ 200        
Stated interest rate 3.35%        
Notes | 2.125% Notes due 2024          
Debt Instrument [Line Items]          
Retired debt   $ 400      
Stated interest rate   2.40%      
Debentures | 8.2% Notes due 2025          
Debt Instrument [Line Items]          
Retired debt   $ 100      
Stated interest rate   8.20%      
Variable Rate Debt Bonds          
Debt Instrument [Line Items]          
Debt at face value     $ 283