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Variable Interest Entities (Tables)
12 Months Ended
Dec. 31, 2021
Schedule of Variable Interest Entities [Abstract]  
Schedule of Variable Interest Entities [Table Text Block] The carrying amounts and classification of assets and liabilities for variable interest entities in our Consolidated Balance Sheet as of December 31, 2021 and 2020 are as follows:
(dollars in millions)20212020
Current assets$7,081 $6,652 
Noncurrent assets825 868 
Total assets$7,906 $7,520 
Current liabilities$7,965 $7,365 
Noncurrent liabilities54 89 
Total liabilities$8,019 $7,454