Products and Services Revenues (Narrative) (Details) (USF Surcharge [Member], USD $) In Millions	3 Months Ended	6 Months Ended
Jun. 30, 2011 Successor [Member]	Mar. 31, 2011 Predecessor [Member]	Jun. 30, 2010 Predecessor [Member]	Jun. 30, 2010 Predecessor [Member]
Other revenues (primarily USF surcharges)	$ 92	$ 96	$ 106	$ 207

Revenues from the sale of other goods or rendering of other services, not elsewhere specified in the taxonomy; net of (reduced by) sales adjustments, returns, allowances, and discounts.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 5
-Section 03
-Paragraph 1

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1(a),(d))
-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

Name:	us-gaap_OtherSalesRevenueNet
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration