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SUPPLEMENTAL CASH FLOW INFORMATION (Tables)
9 Months Ended
Sep. 30, 2021
Supplemental Cash Flow Information [Abstract]  
Schedule of Cash Flow, Supplemental Disclosures Included in the line item "Other items, net" of the "Operating activities" section of the Unaudited Consolidated Statements of Cash Flows are the following changes to Unaudited Consolidated Statements of Financial Position:
(Dollars in millions)First Nine Months
 20212020
Other current assets$(4)$(1)
Other noncurrent assets25 (9)
Payables and other current liabilities221 42 
Long-term liabilities and equity33 71 
Total$275 $103