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Investments in Affiliates (Summarized Balance Sheet Information) (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Schedule of Investments [Line Items]        
Assets, Current $ 14,202 $ 12,433    
Other non-current assets, net 2,017 1,733    
Assets 125,380 113,698 $ 105,643  
Current Liabilities 12,656 11,277    
Equity 46,017 43,939 $ 40,659 $ 39,345
Liabilities and Equity 125,380 113,698    
Equity Method Investments [Member]        
Schedule of Investments [Line Items]        
Assets, Current 446 437    
Property, plant and equipment, net 8,478 8,571    
Other non-current assets, net 105 88    
Assets 9,029 9,096    
Current Liabilities 1,160 683    
Non-current liabilities 3,541 4,379    
Equity 4,328 4,034    
Liabilities and Equity $ 9,029 $ 9,096