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Other Financial Information
 3 Months Ended
Mar. 31, 2021
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:

March 31, 2021December 31, 2020
 (Dollars in millions)
Prepaid expenses$403 290 
Income tax receivable6 7 
Materials, supplies and inventory100 105 
Contract assets64 66 
Contract acquisition costs170 173 
Contract fulfillment costs115 114 
Other66 53 
Total other current assets$924 808