Amortized Cost and Fair Value of Available for Sale Securities by Expected Maturity (Detail) - USD ($) $ in Thousands	Dec. 29, 2018	Dec. 30, 2017
Cost
Due in one year or less	$ 563,272	$ 917,576
Due after one year through five years	2,831,916	2,794,099
Due after five years through ten years	542,488	205,792
Due after ten years	6,783	9,230
Debt Securities, Available-for-sale, Amortized Cost	3,944,459	3,926,697
Fair Value
Due in one year or less	560,992	915,579
Due after one year through five years	2,768,971	2,757,504
Due after five years through ten years	541,852	203,533
Due after ten years	6,895	9,515
Available-for-sale Securities, Debt Maturities, Fair Value	$ 3,878,710	$ 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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