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Investments in Affiliates (Summarized Balance Sheet Information) (Details) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Schedule of Investments [Line Items]        
Assets, Current $ 12,081 $ 10,537    
Other non-current assets, net 1,558 1,645    
Assets 105,643 105,963 $ 95,144  
Current Liabilities 10,368 10,835    
Equity 40,659 39,345 $ 31,388 $ 33,938
Liabilities and Equity 105,643 105,963    
Equity Method Investments [Member]        
Schedule of Investments [Line Items]        
Assets, Current 311 319    
Property, plant and equipment, net 7,722 7,803    
Other non-current assets, net 86 88    
Assets 8,119 8,210    
Current Liabilities 291 547    
Non-current liabilities 4,347 4,110    
Equity 3,481 3,553    
Liabilities and Equity $ 8,119 $ 8,210