Other Financial Information (Tables)

3 Months Ended

Mar. 31, 2018

Additional Financial Information Disclosure [Abstract]

Schedule of components other current assets

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

	As of   March 31, 2018		As of   December 31, 2017
	(Dollars in millions)
Prepaid expenses	$	62	42
Deferred commissions	47		—
Deferred activation and installation charges	104		49
Other	4		7
Total other current assets	$	217	98