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Long-term Debt (Details) - Senior Notes - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Debt Instrument    
Debt instrument, face amount $ 28,830 $ 28,830
Estimate of Fair Value Measurement | Significant Other Observable Inputs (Level 2)    
Debt Instrument    
Long-term debt, fair value $ 28,210 $ 27,830