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Commitments and Contingencies (Details) (USD $)
In Millions, unless otherwise specified
6 Months Ended 12 Months Ended 6 Months Ended
Jun. 30, 2013
Dec. 31, 2008
Dec. 31, 2008
Wireless Spectrum
Jun. 30, 2013
DBSD North America and TerreStar Transactions
Wireless Spectrum
Mar. 09, 2012
DBSD North America and TerreStar Transactions
Wireless Spectrum
Spectrum Investments          
Purchase price         $ 2,860
AWS-4 Interim Build-out Requirement (as a percent)       40.00%  
AWS-4 Final Build-out Requirement (as a percent)       70.00%  
Payment to acquire certain 700 MHz wireless licenses   $ 712 $ 712    
700 MHz Interim Build-out Requirement (as a percent)     35.00%    
700 MHz Final Build-out Requirement (as a percent)     70.00%    
Accelerated period to meet Final Build-Out Requirement on failure to meet Interim Build-Out Requirement 1 year