Other Financial Information (Tables)

12 Months Ended

Dec. 31, 2014

Prepaid Expense and Other Assets, Current [Abstract]

Schedule of other current assets reflected on the entity's balance sheets

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

	As of December 31,
	2014		2013
	(Dollars in millions)
Prepaid expenses	$	45	47
Other	80		79
Total other current assets	$	125	126

Schedule of accounts payable

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

	As of December 31,
	2014		2013
	(Dollars in millions)
Accounts payable	$	464	440