Financial Instruments (Details 2) $ in Thousands	Apr. 02, 2016 USD ($)
Investments, All Other Investments [Abstract]
Marketable debt securities with contractual maturities greater than one year but classified as short-term investment	$ 1,920,000
Amortized cost and estimated fair value of marketable debt securities
Amortized Cost Due in one year or less	1,120,486
Amortized Cost Due after one year through five years	545,350
Amortized Cost Due after five years through ten years	264,616
Amortized Cost Due after ten years	1,229,856
Amortized Cost Total	3,160,308
Estimated Fair Value Due in one year or less	1,120,487
Estimated Fair Value Due after one year through five years	545,457
Estimated Fair Value Due after five years through ten years	265,529
Estimated Fair Value Due after ten years	1,236,250
Estimated Fair Value Total	$ 3,167,723