SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) (Reclassifications, USD $) In Millions, unless otherwise specified	12 Months Ended				3 Months Ended
	Dec. 31, 2012 Wireline revenue	Dec. 31, 2011 Wireline revenue	Dec. 31, 2012 Termination and access fees	Dec. 31, 2011 Termination and access fees	Sep. 30, 2013 Other Income	Dec. 31, 2013 International wireless revenues
Reclassifications
Prior period reclassifications	$ (1.3)	$ (0.8)	$ 1.3	$ 0.8	$ 0.6	$ 2.3