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Debt and Credit Facilities - Narrative (Details) - USD ($)
1 Months Ended 3 Months Ended 9 Months Ended
Jun. 30, 2025
Feb. 28, 2025
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Line of Credit Facility [Line Items]            
Commercial paper     $ 0   $ 0  
Payments of long-term debt         650,000,000 $ 601,000,000
Interest expense, debt     157,000,000 $ 98,000,000 453,000,000 $ 292,000,000
Commercial Paper            
Line of Credit Facility [Line Items]            
Maximum borrowing capacity     $ 3,000,000,000   $ 3,000,000,000  
Debt instrument, maturity         397 days  
Senior Unsecured Notes, 4.250% Due 2029            
Line of Credit Facility [Line Items]            
Rate     4.25%   4.25%  
Senior Unsecured Notes 3.375% Due 2025            
Line of Credit Facility [Line Items]            
Rate     3.375%   3.375%  
Senior Unsecured Notes 4.625% due 2046            
Line of Credit Facility [Line Items]            
Rate     4.625%   4.625%  
Senior Unsecured Notes, 3.625% Due 2036            
Line of Credit Facility [Line Items]            
Rate     3.625%   3.625%  
Senior Unsecured Notes, 4.550% Due 2027            
Line of Credit Facility [Line Items]            
Rate     4.55%   4.55%  
Senior Unsecured Notes, 4.550% Due 2027 | Senior Notes            
Line of Credit Facility [Line Items]            
Debt instrument, face amount   $ 500,000,000        
Rate   4.55%        
Senior Unsecured Notes, 4.700% Due 2027            
Line of Credit Facility [Line Items]            
Rate     4.70%   4.70%  
Senior Unsecured Notes, 4.700% Due 2027 | Senior Notes            
Line of Credit Facility [Line Items]            
Debt instrument, face amount   $ 700,000,000        
Rate   4.70%        
Senior Unsecured Notes, 5.200% Due 2035            
Line of Credit Facility [Line Items]            
Rate     5.20%   5.20%  
Senior Unsecured Notes, 5.200% Due 2035 | Senior Notes            
Line of Credit Facility [Line Items]            
Debt instrument, face amount   $ 1,000,000,000        
Rate   5.20%        
Senior Unsecured Notes 4.850% Due 2028            
Line of Credit Facility [Line Items]            
Rate     4.85%   4.85%  
Senior Unsecured Notes 4.850% Due 2028 | Senior Notes            
Line of Credit Facility [Line Items]            
Debt instrument, face amount   $ 800,000,000        
Rate   4.85%        
Senior Unsecured Notes, 1.150% Due 2025            
Line of Credit Facility [Line Items]            
Rate     1.15%   1.15%  
Senior Unsecured Notes, 1.150% Due 2025 | Senior Notes            
Line of Credit Facility [Line Items]            
Payments of long-term debt $ 650,000,000          
Rate     1.15%   1.15%  
Revolving Credit Facility            
Line of Credit Facility [Line Items]            
Increase in maximum borrowing capacity   $ 750,000,000        
Maximum borrowing capacity   $ 3,000,000,000        
Borrowings outstanding under credit facility     $ 0   $ 0