FINANCIAL INSTRUMENTS - Schedule of Cash, Cash Equivalents, Investments and Restricted Cash and Investments Unrealized Loss Positions (Detail) $ in Thousands	Mar. 26, 2017 USD ($)
Fair Value
Unrealized Losses Less Than 12 Months	$ 2,490,647
Unrealized Losses 12 Months or Greater	37,753
Total	2,528,400
Gross Unrealized Loss
Unrealized Losses Less Than 12 Months	(8,557)
Unrealized Losses 12 Months or Greater	(214)
Total	(8,771)
U.S. Treasury & Agencies
Fair Value
Unrealized Losses Less Than 12 Months	607,008
Unrealized Losses 12 Months or Greater	0
Total	607,008
Gross Unrealized Loss
Unrealized Losses Less Than 12 Months	(3,245)
Unrealized Losses 12 Months or Greater	0
Total	(3,245)
Municipal Notes and Bonds
Fair Value
Unrealized Losses Less Than 12 Months	104,474
Unrealized Losses 12 Months or Greater	4,980
Total	109,454
Gross Unrealized Loss
Unrealized Losses Less Than 12 Months	(56)
Unrealized Losses 12 Months or Greater	(20)
Total	(76)
Government-Sponsored Enterprises
Fair Value
Unrealized Losses Less Than 12 Months	50,979
Unrealized Losses 12 Months or Greater	533
Total	51,512
Gross Unrealized Loss
Unrealized Losses Less Than 12 Months	(26)
Unrealized Losses 12 Months or Greater	(9)
Total	(35)
Foreign Government Bonds
Fair Value
Unrealized Losses Less Than 12 Months	38,084
Unrealized Losses 12 Months or Greater	0
Total	38,084
Gross Unrealized Loss
Unrealized Losses Less Than 12 Months	(186)
Unrealized Losses 12 Months or Greater	0
Total	(186)
Corporate Notes and Bonds
Fair Value
Unrealized Losses Less Than 12 Months	1,553,348
Unrealized Losses 12 Months or Greater	19,413
Total	1,572,761
Gross Unrealized Loss
Unrealized Losses Less Than 12 Months	(4,122)
Unrealized Losses 12 Months or Greater	(48)
Total	(4,170)
Mortgage Backed Securities — Residential
Fair Value
Unrealized Losses Less Than 12 Months	88,273
Unrealized Losses 12 Months or Greater	9,072
Total	97,345
Gross Unrealized Loss
Unrealized Losses Less Than 12 Months	(628)
Unrealized Losses 12 Months or Greater	(126)
Total	(754)
Mortgage Backed Securities — Commercial
Fair Value
Unrealized Losses Less Than 12 Months	48,481
Unrealized Losses 12 Months or Greater	3,755
Total	52,236
Gross Unrealized Loss
Unrealized Losses Less Than 12 Months	(294)
Unrealized Losses 12 Months or Greater	(11)
Total	$ (305)