Other Financial Information (Tables)

12 Months Ended

Dec. 31, 2017

Additional Financial Information Disclosure [Abstract]

Schedule of other current assets

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

	As of December 31,
	2017		2016
	(Dollars in millions)
Prepaid expenses	$	42	48
Assets held for sale	—		8
Other	56		73
Total other current assets	$	98	129

Schedule of accounts payable and accrued liabilities

Current liabilities reflected in our consolidated balance sheets include accounts payable:

	As of December 31,
	2017		2016
	(Dollars in millions)
Accounts payable	$	317	398