Financial Instruments (Details 2) (USD $) In Thousands, unless otherwise specified	Jun. 29, 2013
Amortized cost and estimated fair value of marketable debt securities
Amortized Cost Due in one year or less	$ 1,618,575
Amortized Cost Due after one year through five years	410,737
Amortized Cost Due after five years through ten years	246,066
Amortized Cost Due after ten years	926,700
Amortized Cost Total	3,202,078
Estimated Fair Value Due in one year or less	1,618,680
Estimated Fair Value Due after one year through five years	410,270
Estimated Fair Value Due after five years through ten years	247,012
Estimated Fair Value Due after ten years	917,133
Estimated Fair Value Total	$ 3,193,095