Financial Instruments and Fair Value Measurements Non-Recurring Fair Value Measurements (Details) (USD $)	12 Months Ended					12 Months Ended									12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 Data Center Colocation [Member]	Jun. 30, 2012 Data Center Colocation [Member]	Dec. 31, 2013 Wireline [Member]	Dec. 31, 2012 Wireline [Member]	Dec. 31, 2011 Wireline [Member]	Dec. 31, 2013 Wireless [Member]	Dec. 31, 2012 Wireless [Member]	Dec. 31, 2011 Wireless [Member]	Dec. 31, 2012 Fair Value, Inputs, Level 1 [Member]	Dec. 31, 2012 Fair Value, Inputs, Level 2 [Member]	Dec. 31, 2012 Fair Value, Inputs, Level 3 [Member]	Dec. 31, 2012 Fair Value, Measurements, Nonrecurring [Member]	Dec. 31, 2012 Fair Value, Measurements, Nonrecurring [Member] Data Center Colocation [Member]	Jun. 30, 2012 Fair Value, Measurements, Nonrecurring [Member] Data Center Colocation [Member]	Jun. 30, 2012 Fair Value, Measurements, Nonrecurring [Member] Fair Value, Inputs, Level 1 [Member] Data Center Colocation [Member]	Jun. 30, 2012 Fair Value, Measurements, Nonrecurring [Member] Fair Value, Inputs, Level 2 [Member] Data Center Colocation [Member]	Jun. 30, 2012 Fair Value, Measurements, Nonrecurring [Member] Fair Value, Inputs, Level 3 [Member] Data Center Colocation [Member]	Jun. 30, 2012 Leasehold Improvements [Member] Fair Value, Measurements, Nonrecurring [Member] Data Center Colocation [Member]	Jun. 30, 2012 Leasehold Improvements [Member] Fair Value, Measurements, Nonrecurring [Member] Fair Value, Inputs, Level 1 [Member] Data Center Colocation [Member]	Jun. 30, 2012 Leasehold Improvements [Member] Fair Value, Measurements, Nonrecurring [Member] Fair Value, Inputs, Level 2 [Member] Data Center Colocation [Member]	Jun. 30, 2012 Leasehold Improvements [Member] Fair Value, Measurements, Nonrecurring [Member] Fair Value, Inputs, Level 3 [Member] Data Center Colocation [Member]	Dec. 31, 2012 Network equipment [Member] Fair Value, Measurements, Nonrecurring [Member] Wireline [Member]	Dec. 31, 2012 Network equipment [Member] Fair Value, Measurements, Nonrecurring [Member] Fair Value, Inputs, Level 1 [Member] Wireline [Member]	Dec. 31, 2012 Network equipment [Member] Fair Value, Measurements, Nonrecurring [Member] Fair Value, Inputs, Level 2 [Member] Wireline [Member]	Dec. 31, 2012 Network equipment [Member] Fair Value, Measurements, Nonrecurring [Member] Fair Value, Inputs, Level 3 [Member] Wireline [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Finite-lived Intangible Assets, Fair Value Disclosure																	$ 2,800,000	$ 0	$ 0	$ 2,800,000
Impairment of Intangible Assets, Finite-lived	0		0													(1,500,000)
Property, Plant, and Equipment, Fair Value Disclosure																					2,400,000	0	0	2,400,000	400,000	0	0	400,000
Other Assets, Fair Value Disclosure		0										0	0	0
Impairment of assets, excluding goodwill	0	(14,200,000)	(2,100,000)	11,800,000		0	500,000	1,000,000	0	400,000	1,100,000
Asset Impairment Charges	0	(14,200,000)	(52,400,000)	(13,300,000)											(14,200,000)
Fair Value Inputs, Discount Rate		12.00%
Property, Plant and Equipment at Carrying Value for Fair Value Measurement					$ 14,200,000