Balance Sheet Information Balance Sheet Information (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
Apr. 03, 2015
Jun. 27, 2014
Investments, Debt and Equity Securities [Abstract]    
Cash and investments held as collateral at banks for various performance obligations $ 4  
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value 0 0
Available-for-sale Securities, Cost Basis of Other-than-temporarily Imparied Securities $ 0 $ 0