Financial Instruments, Short-term Investments (Details) - USD ($) $ in Thousands	3 Months Ended											12 Months Ended
	Jun. 27, 2020		Mar. 28, 2020	Dec. 28, 2019	[1]	Sep. 28, 2019	Jun. 29, 2019	Mar. 30, 2019	Dec. 29, 2018	[2]	Sep. 29, 2018	Jun. 27, 2020	Jun. 29, 2019	Jun. 30, 2018
Debt Securities, Available-for-sale [Abstract]
Amortized Cost Basis	$ 35,417						$ 141,031					$ 35,417	$ 141,031
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	137						68					137	68
Gross Unrealized Loss	(18)						(109)					(18)	(109)
Estimated Fair Value	35,536						140,990					35,536	140,990
Net Income (Loss) Attributable to Parent	207,298	[1]	$ 161,190	$ 146,050		$ 140,156	367,558	$ 130,613	$ 131,892		$ 197,423	654,694	827,486	$ 467,318
Certificates of Deposit [Member]
Debt Securities, Available-for-sale [Abstract]
Amortized Cost Basis	0						1,000					0	1,000
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	0						0					0	0
Gross Unrealized Loss	0						0					0	0
Estimated Fair Value	0						1,000					0	1,000
Corporate Debt Securities [Member]
Debt Securities, Available-for-sale [Abstract]
Amortized Cost Basis	35,417						140,031					35,417	140,031
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	137						68					137	68
Gross Unrealized Loss	(18)						(109)					(18)	(109)
Estimated Fair Value	$ 35,536						$ 139,990					$ 35,536	$ 139,990

[1] (1) The fiscal quarter ended June 27, 2020 includes $51.2 million of net income from the release of uncertain tax position and related interest reserves and a $6.5 million Transition Tax charge. For details, refer to Note 17: "Income Taxes".

  Quarter Ended Fiscal Year 2019 June 29, 2019   March 30, 2019   December 29, 2018   September 29, 2018   (in thousands, except percentages and per share data) Net revenues  $ 556,545
  $ 542,383
  $ 576,906
  $ 638,495
Cost of goods sold  200,154
  201,552
  203,858
  208,259
Gross margin  $ 356,391
  $ 340,831
  $ 373,048
  $ 430,236
Gross margin % 64.0 %   62.8 %   64.7 %   67.4 % Operating income $ 173,571
  $ 157,140
  $ 182,204
  $ 234,183
     % of net revenues 31.2 %   29.0 %   31.6 %   36.7 % Net income ⁽¹⁾ $ 367,558
  $ 130,613
  $ 131,892
  $ 197,423
                Earnings per share:  
   
   
   
     Basic $ 1.35
  $ 0.48
  $ 0.48
  $ 0.71
     Diluted $ 1.33
  $ 0.47
  $ 0.47
  $ 0.70
                Weighted-average shares used in the calculation of earnings per share:  
   
   
   
     Basic  272,382
  273,221
  276,252
  278,045
     Diluted 275,834
  276,610
  280,008
  282,454
                Dividends declared and paid per share  $ 0.46
  $ 0.46
  $ 0.46
  $ 0.46

[2] (1) The fiscal quarter ended June 29, 2019 includes $251.6 million of net income from the release of uncertain tax position and related interest reserves and a $47.7 million Transition Tax charge. The fiscal quarter ended December 29, 2018 includes a $22.1 million Transition Tax charge. For details, refer to Note 17: "Income Taxes".