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SUPPLEMENTAL CASH FLOW INFORMATION (Tables)
 9 Months Ended
Sep. 30, 2019
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
 
2019
 
2018
Other current assets (1)
$
23

 
$
(93
)
Other noncurrent assets
13

 
25

Payables and other current liabilities
79

 
28

Long-term liabilities and equity
(25
)
 
(35
)
Total
$
90

 
$
(75
)