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Other Financial Information
 6 Months Ended
Jun. 30, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Other Financial Information Other Financial Information
Other Current Assets

The following table presents details of other current assets reflected in our consolidated balance sheets:
June 30, 2020December 31, 2019
 (Dollars in millions)
Prepaid expenses$340  274  
Income tax receivable69  35  
Materials, supplies and inventory122  105  
Contract assets33  42  
Contract acquisition costs175  178  
Contract fulfillment costs111  115  
Other63  70  
Total other current assets$913  819