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Long-Term Debt and Short-Term Borrowings - Schedule of Long-Term and Short-Term Debt (Details) - USD ($)
$ in Millions
 1 Months Ended 9 Months Ended
Feb. 16, 2024
Sep. 30, 2025
Sep. 30, 2025
Dec. 31, 2024
Debt Instrument [Line Items]        
Total long-term debt   $ 5,137 $ 5,137 $ 8,010
Less: current portion of long-term debt   0 0 200
Long-term debt (excluding current portion)   5,137 5,137 7,810
Senior Notes        
Debt Instrument [Line Items]        
Debt instrument, face amount   5,000 $ 5,000  
5.45% Senior Notes Due 2027 | Senior Notes        
Debt Instrument [Line Items]        
Debt instrument, term     3 years  
Debt instrument, face amount   $ 1,000 $ 1,000  
Interest rate, stated percentage   5.45% 5.45%  
Effective Interest Rate   5.36% 5.36%  
Total long-term debt   $ 349 $ 349 995
5.40% Senior Notes Due 2029 | Senior Notes        
Debt Instrument [Line Items]        
Debt instrument, term     5 years  
Debt instrument, face amount   $ 1,500 $ 1,500  
Interest rate, stated percentage   5.40% 5.40%  
Effective Interest Rate   5.23% 5.23%  
Total long-term debt   $ 698 $ 698 1,487
5.45% Senior Notes Due 2031 | Senior Notes        
Debt Instrument [Line Items]        
Debt instrument, term     7 years  
Debt instrument, face amount   $ 1,000 $ 1,000  
Interest rate, stated percentage   5.45% 5.45%  
Effective Interest Rate   5.22% 5.22%  
Total long-term debt   $ 991 $ 991 990
5.60% Senior Notes Due 2034 | Senior Notes        
Debt Instrument [Line Items]        
Debt instrument, term     10 years  
Debt instrument, face amount   $ 1,650 $ 1,650  
Interest rate, stated percentage   5.60% 5.60%  
Effective Interest Rate   5.39% 5.39%  
Total long-term debt   $ 1,637 $ 1,637 1,636
5.90% Senior Notes Due 2054 | Senior Notes        
Debt Instrument [Line Items]        
Debt instrument, term     30 years  
Debt instrument, face amount   $ 1,250 $ 1,250  
Interest rate, stated percentage   5.90% 5.90%  
Effective Interest Rate   5.76% 5.76%  
Total long-term debt   $ 1,210 $ 1,210 1,231
6.00% Senior Notes Due 2064 | Senior Notes        
Debt Instrument [Line Items]        
Debt instrument, term     40 years  
Debt instrument, face amount   $ 500 $ 500  
Interest rate, stated percentage   6.00% 6.00%  
Effective Interest Rate   5.89% 5.89%  
Total long-term debt   $ 42 $ 42 492
Eighteen month senior term loan credit facility | Credit Facilities | Line of Credit        
Debt Instrument [Line Items]        
Debt instrument, term 18 months   18 months  
Effective Interest Rate   0.00% 0.00%  
Total long-term debt   $ 0 $ 0 200
Three year senior term loan credit facility | Credit Facilities | Line of Credit        
Debt Instrument [Line Items]        
Debt instrument, term 3 years 3 years 3 years  
Effective Interest Rate   5.53% 5.53%  
Total long-term debt   $ 210 $ 210 $ 979