Significant Transactions (Details) (USD $)	0 Months Ended	6 Months Ended								6 Months Ended
	Dec. 31, 2012	Jun. 30, 2013	Jul. 09, 2013	Jul. 10, 2013	Jun. 30, 2012	Jun. 20, 2013	Feb. 26, 2013 draws	Dec. 17, 2012	Nov. 06, 2012	Jul. 10, 2013 SoftBank [Member]	Oct. 22, 2012 Sprint Nextel [Member]	May 17, 2013 FCC Licenses [Member]	Jun. 30, 2013 Customer Relationships [Member]	Jun. 30, 2013 Financing Agreement entered into in December 2012 [Member]
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired										78.00%
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners				22.00%
Proceeds from Issuance or Sale of Equity				$ 5,000,000,000
Proceeds from Issuance of Common Stock		51,000,000			7,000,000
Business Acquisition, Cost of Acquired Entity, Purchase Price				22,300,000,000
Business combination, cost of acquired entity, partial cash paid										16,600,000,000
Convertible Debt											3,100,000,000
Business combination, cost of acquired entity, additional partial cash to be paid										1,900,000,000
Debt Instrument, Interest Rate, Stated Percentage											1.00%
Stock Issued During Period, Shares, Conversion of Convertible Securities											590,476,190
Debt Instrument, Convertible, Conversion Price											$ 5.25
Business Acquisition, Cost Of Other Acquired Spectrum, Cash to Be Paid									480,000,000
Business Acquisition, Network Shutdown Costs to be paid by the Company									160,000,000
Business Acquisition, Maximum Network Shutdown Costs to be paid by the Company on an undiscounted basis									200,000,000
Fair value of indefinite lived intangible assets acquired in asset acquisition transaction												605,000,000
Acquired Finite-lived Intangible Asset, Amount													32,000,000
Payments to Acquire Equity Method Investments								2,200,000,000
Business Acquisition, Share Price						$ 5.00		$ 2.97
Exchangeable notes, related party								800,000,000						240,000,000
Interest rate of exchange note, related party	1.00%
Exchangeable Note, Conversion Price								$ 1.50
Amount of individual draw of exchangeable note issued by investee								$ 80,000,000
Agreement Term	10 months
Number of installments							3
Business Acquisition, Effective Date of Acquisition			Jul. 09, 2013							Jul. 10, 2013