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Debt and Redeemable Preferred Securities of Subsidiaries (Long-Term Debt) (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Debt Instrument    
Total Long-term debt $ 8,456 $ 8,141
Less current portion 315 263
Long-term portion $ 8,141 7,878
Notes and debentures    
Debt Instrument    
Weighted- Average Interest Rate 3.20%  
Total Long-term debt $ 8,198 7,897
Industrial development revenue bonds    
Debt Instrument    
Weighted- Average Interest Rate 0.40%  
Total Long-term debt $ 169 169
Bank loans and other financings In various currencies    
Debt Instrument    
Weighted- Average Interest Rate 2.70%  
Total Long-term debt $ 89 $ 75