Basis of Presentation (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
Jun. 30, 2012
Basis of Presentation
Number of states in which service is provided	14
CenturyLink, Inc.
Basis of Presentation
Non-cash dividends recognized	$ 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.

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