v3.25.4
Debt (Narrative) (Details) - USD ($)
1 Months Ended 12 Months Ended
Sep. 29, 2024
Mar. 31, 2025
Nov. 30, 2024
Jun. 30, 2024
Mar. 31, 2024
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Feb. 29, 2024
Debt Instrument [Line Items]                  
Commercial paper outstanding           $ 0 $ 0    
Repayments of principal in 2026           1,300,000,000      
Repayments of principal in 2027           1,300,000,000      
Repayments of principal in 2028           22,000,000      
Repayments of principal in 2029           1,500,000,000      
Repayments of principal in 2030           2,400,000,000      
Payments of financing costs           0 23,000,000 $ 0  
Senior Notes                  
Debt Instrument [Line Items]                  
Debt instrument, amount     $ 7,250,000,000            
Other Debt Facilities                  
Debt Instrument [Line Items]                  
Revolving credit facility, amount outstanding           0 0    
Debt instrument, unused borrowing capacity           122,000,000 123,000,000    
Letters of credit outstanding, amount           $ 150,000,000 163,000,000    
3.50% Senior Debt Obligations June 2024                  
Debt Instrument [Line Items]                  
Interest rate       3.50%          
3.50% Senior Debt Obligations June 2024 | Senior Notes                  
Debt Instrument [Line Items]                  
Repayments of debt   $ 500,000,000   $ 600,000,000          
Interest rate   3.50%              
Senior notes – 4.550% due 2027                  
Debt Instrument [Line Items]                  
Interest rate     4.55%     4.55%      
Senior notes – 4.550% due 2027 | Senior Notes                  
Debt Instrument [Line Items]                  
Debt instrument, amount     $ 950,000,000            
4.650% Senior Debt Obligations Due 2030                  
Debt Instrument [Line Items]                  
Interest rate     4.65%            
4.650% Senior Debt Obligations Due 2030 | Senior Notes                  
Debt Instrument [Line Items]                  
Debt instrument, amount     $ 1,000,000,000            
Senior notes – 4.850% due 2031                  
Debt Instrument [Line Items]                  
Interest rate     4.85%     4.85%      
Senior notes – 4.850% due 2031 | Senior Notes                  
Debt Instrument [Line Items]                  
Debt instrument, amount     $ 1,000,000,000            
5.000% Senior Debt Obligations Due 2035                  
Debt Instrument [Line Items]                  
Interest rate     5.00%            
5.000% Senior Debt Obligations Due 2035 | Senior Notes                  
Debt Instrument [Line Items]                  
Debt instrument, amount     $ 2,000,000,000            
5.350% Senior Debt Obligations Due 2044                  
Debt Instrument [Line Items]                  
Interest rate     5.35%            
5.350% Senior Debt Obligations Due 2044 | Senior Notes                  
Debt Instrument [Line Items]                  
Debt instrument, amount     $ 500,000,000            
5.400% Senior Debt Obligations Due 2055                  
Debt Instrument [Line Items]                  
Interest rate     5.40%            
5.400% Senior Debt Obligations Due 2055 | Senior Notes                  
Debt Instrument [Line Items]                  
Debt instrument, amount     $ 1,500,000,000            
Senior notes – Floating due 2027 | Senior Notes                  
Debt Instrument [Line Items]                  
Debt instrument, amount     $ 300,000,000            
Basis spread on variable rate     0.70%            
3.875% Senior Debt Obligations March 2024                  
Debt Instrument [Line Items]                  
Interest rate         3.875%        
3.875% Senior Debt Obligations March 2024 | Senior Notes                  
Debt Instrument [Line Items]                  
Repayments of debt         $ 1,000,000,000        
Senior notes – 5.150% due 2034                  
Debt Instrument [Line Items]                  
Interest rate           5.15%     5.15%
Senior notes – 5.150% due 2034 | Senior Notes                  
Debt Instrument [Line Items]                  
Debt instrument, amount                 $ 500,000,000
Senior notes – 5.450% due 2054                  
Debt Instrument [Line Items]                  
Interest rate           5.45%     5.45%
Senior notes – 5.450% due 2054 | Senior Notes                  
Debt Instrument [Line Items]                  
Debt instrument, amount                 $ 500,000,000
Revolving Credit Facility                  
Debt Instrument [Line Items]                  
Revolving credit facility, borrowing capacity           $ 3,500,000,000      
Debt instrument, term           5 years      
Revolving Credit Facility | Amended Revolving Credit Facility                  
Debt Instrument [Line Items]                  
Revolving credit facility, amount outstanding           $ 0 $ 0    
Commercial Paper                  
Debt Instrument [Line Items]                  
Debt instrument, amount           $ 3,500,000,000      
Line of Credit | Bridge Loan Facility                  
Debt Instrument [Line Items]                  
Revolving credit facility, borrowing capacity $ 7,750,000,000                
Debt instrument, term 364 days                
Payments of financing costs $ 23,000,000