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Debt and Reedemable Preferred Securities of Subsidiaries (Tables)
12 Months Ended
Dec. 31, 2021
Debt Disclosure [Abstract]  
Long-term debt
Long-term debt is composed of the following:
Weighted-
Average
Interest
Rate
MaturitiesDecember 31
20212020
Notes and debentures3.2%2022 - 2050$8,198 $7,897 
Industrial development revenue bonds0.4%2023 - 2045169 169 
Bank loans and other financings in various currencies2.7%2022 - 203989 75 
Total long-term debt8,456 8,141 
Less current portion315 263 
Long-term portion$8,141 $7,878