BASIS OF PRESENTATION (Details) (Alltel sale, AT&T Mobility, USD $) In Millions, unless otherwise specified	Sep. 20, 2013
Alltel sale \| AT&T Mobility
Pending Sale Of U.S. Retail Wireless Business
Consideration for sale of operations in all-cash transaction	$ 780.0

The value of all consideration given or received by the Entity in the significant acquisition or disposal.

No definition available.

Name:	us-gaap_SignificantAcquisitionsAndDisposalsAcquisitionCostsOrSaleProceeds
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant