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Cash and Investments Combined Investment Classification (Details) (Interest in Clearwire, LLC and Shares in Clearwire Corporation [Member], Scenario, Forecast [Member], USD $)
In Millions, unless otherwise specified
3 Months Ended
Sep. 28, 2013
Interest in Clearwire, LLC and Shares in Clearwire Corporation [Member] | Scenario, Forecast [Member]
 
Combined Investment [Line Items]  
Proceeds from Sale, Maturity and Collection of Investments $ 470
Gain (loss) on Sale of Combined Investment $ 439