Amortized Cost and Fair Value of Available for Sale Securities by Expected Maturity (Detail) - USD ($) $ in Thousands	Sep. 29, 2018	Dec. 30, 2017
Cost
Due in one year or less	$ 577,480	$ 917,576
Due after one year through five years	2,713,698	2,794,099
Due after five years through ten years	448,838	205,792
Due after ten years	7,223	9,230
Total	3,747,239	3,926,697
Fair Value
Due in one year or less	575,195	915,579
Due after one year through five years	2,640,263	2,757,504
Due after five years through ten years	445,862	203,533
Due after ten years	7,283	9,515
Total	$ 3,668,603	$ 3,886,131

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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