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Investments in Subsidiaries (Non-Controlling Interests in Subsidiaries - Balance Sheet) (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Investments in subsidiaries and investee companies [Line Items]        
Current assets $ 3,586 $ 4,034    
Non-current assets 7,735 7,593    
Current liabilities (2,328) (2,638)    
Non-current liabilities (3,006) (2,952)    
Equity (5,987) (6,037) $ (5,713) $ (4,736)
Non-controlling interests [Member]        
Investments in subsidiaries and investee companies [Line Items]        
Current assets 270 278    
Non-current assets 365 376    
Current liabilities (96) (102)    
Non-current liabilities (38) (43)    
Equity $ (501) $ (509)