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Variable Interest Entities (Tables)
3 Months Ended
Mar. 31, 2020
Variable Interest Entity, Primary Beneficiary  
Variable Interest Entity [Line Items]  
Schedule of Variable Interest Entities [Table Text Block] The carrying amounts and classification of assets and liabilities for variable interest entities in our Condensed Consolidated Balance Sheet are as follows:
(dollars in millions)March 31, 2020December 31, 2019
Current assets$4,990  $4,573  
Noncurrent assets2,048  1,919  
Total assets$7,038  $6,492  
 
Current liabilities$5,352  $4,916  
Noncurrent liabilities2,240  2,149  
Total liabilities$7,592  $7,065