MOBILITY FUND GRANTS (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended		1 Months Ended	0 Months Ended		1 Months Ended	12 Months Ended
	Dec. 31, 2013 item	Jun. 30, 2013 Letters of credit	Aug. 31, 2013 Alltel Mobility Funds	Nov. 14, 2013 Alltel Mobility Funds Letters of credit	Sep. 20, 2013 Alltel Mobility Funds Letters of credit	Aug. 31, 2013 Wholesale Mobility Funds	Dec. 31, 2013 Wholesale Mobility Funds U.S. Wireless	Dec. 31, 2013 Wholesale Mobility Funds U.S. Wireless Other current liabilities	Dec. 31, 2013 Wholesale Mobility Funds U.S. Wireless Other long-term liabilities
MOBILITY FUND GRANTS
Number of new funds created by FCC	2
Mobility Funds approved by FCC			$ 47.0			$ 21.7
Letters of credit posted to USAC		29.8
Period over which a portion of the Mobility Funds is used to offset the costs of supporting the networks	5 years
Cash payment of penalty fees for default					4.6
Amount terminated				19.9
Mobility Funds received							7.3	2.4	3.8
Grant funds used to offset fixed asset related costs	$ 1.1						$ 1.1