Financial Instruments - Cash Equivalents and Available-for-Sale Securities (Details) - USD ($) $ in Thousands	Jan. 01, 2022	Apr. 03, 2021
Money market funds
Amortized Cost	$ 1,938,544	$ 1,438,528
Available-for-sale securities
Amortized Cost Total	2,440,052
Estimated Fair Value	2,439,371
Amortized Cost	3,463,873	2,904,425
Gross Unrealized Gains	137	1,632
Gross Unrealized Losses	(818)	(351)
Estimated Fair Value	3,463,192	2,905,706
Money market funds
Money market funds
Amortized Cost	1,023,821	583,390
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Estimated Fair Value	1,023,821	583,390
Financial institution securities
Available-for-sale securities
Amortized Cost Total	480,660	434,982
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Estimated Fair Value	480,660	434,982
Non-financial institution securities
Available-for-sale securities
Amortized Cost Total	576,412	533,835
Gross Unrealized Gains	1	0
Gross Unrealized Losses	(3)	0
Estimated Fair Value	576,410	533,835
U.S. government and agency securities
Available-for-sale securities
Amortized Cost Total	765,297	568,122
Gross Unrealized Gains	111	45
Gross Unrealized Losses	(208)	0
Estimated Fair Value	765,200	568,167
Foreign government and agency securities
Available-for-sale securities
Amortized Cost Total	562,416	662,855
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(28)	0
Estimated Fair Value	562,388	662,855
Mortgage-backed securities
Available-for-sale securities
Amortized Cost Total	48,849	108,460
Gross Unrealized Gains	25	1,488
Gross Unrealized Losses	(422)	(345)
Estimated Fair Value	48,452	109,603
Asset-backed securities
Available-for-sale securities
Amortized Cost Total	0	159
Gross Unrealized Gains	0	13
Gross Unrealized Losses	0	0
Estimated Fair Value	0	172
Commercial mortgage-backed securities
Available-for-sale securities
Amortized Cost Total	6,418	12,622
Gross Unrealized Gains	0	86
Gross Unrealized Losses	(157)	(6)
Estimated Fair Value	$ 6,261	$ 12,702

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on 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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