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Acquisitions (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified
6 Months Ended
Mar. 09, 2012
TerreStar Networks, Inc. ("TerreStar")
Wireless Spectrum
Jun. 30, 2013
DBSD North America and TerreStar Transactions
Wireless Spectrum
Mar. 09, 2012
DBSD North America and TerreStar Transactions
Wireless Spectrum
Mar. 31, 2012
DBSD North America and TerreStar Transactions
Sprint Settlement Agreement
Wireless Spectrum
Mar. 09, 2012
DBSD North America (ICO)
Wireless Spectrum
Apr. 15, 2013
Sprint Merger Proposal
May 30, 2013
Clearwire tender offer
Spectrum Investments              
Total consideration $ 1,382   $ 2,860 $ 114 $ 1,364 $ 25,500  
AWS-4 Interim Build-out Requirement (as a percent)   40.00%          
AWS-4 Final Build-out Requirement (as a percent)   70.00%          
Share price (in dollars per share)             $ 4.40