Basis of Presentation (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
Sep. 30, 2012
Basis of Presentation
Number of states in which service is provided	14
CenturyLink
Basis of Presentation
Non-cash dividends declared	$ 38

Amount of non-cash dividends resulting from transactions, excluding transactions that are eliminated in consolidated or combined financial statements, with related party.

No definition available.

Name:	q_RelatedPartyTransactionNonCashDividendsFromTransactionsWithRelatedParty
Namespace Prefix:	q_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration