Income Taxes - Reconciliation of Gross Unrecognized Tax Benefits (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at beginning of period	$ 6	$ 6
Additions for tax positions related to SuperMedia acquisition	45	0
Additions for tax positions related to the current year	1	0
Reductions for tax positions related to the current year	0	0
Reductions for tax positions related to prior years	0	0
Gross reductions for tax positions related to the lapse of applicable statute of limitations	(33)	0
Settlements	0	0
Balance at end of period	19	6	6
Additional unrecognized tax benefits related to merger	45
Interest expense, net	3		5
Accrued interest	$ 1