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Related Party Transactions (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Operating revenues and other income    
Related Party Transaction [Line Items]    
Significant transactions with related parties $ 1,036 $ 1,133
Purchases    
Related Party Transaction [Line Items]    
Significant transactions with related parties 4,010 5,231
Operating expenses and selling, general and administrative expenses    
Related Party Transaction [Line Items]    
Significant transactions with related parties $ 74 $ 69