Other Financial Information (Tables)

12 Months Ended

Dec. 31, 2020

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of components of other current assets

The following table presents details of other current assets in our consolidated balance sheets:

	As of December 31,
	2020		2019
	(Dollars in millions)
Prepaid expenses	$	290	274
Income tax receivable	7		35
Materials, supplies and inventory	105		105
Contract assets	66		42
Contract acquisition costs	173		178
Contract fulfillment costs	114		115
Other	53		70
Total other current assets	$	808	819