Investments - Short-term Investments by Type (Details) - USD ($)	Dec. 25, 2022	Jun. 26, 2022
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 1,425,500,000	$ 772,200,000
Gross Unrealized Gains	200,000	100,000
Gross Unrealized Losses	(26,400,000)	(23,000,000.0)
Credit Loss Allowance	0	0
Estimated Fair Value	1,399,300,000	749,300,000
Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	618,200,000	465,800,000
Gross Unrealized Gains	100,000	0
Gross Unrealized Losses	(20,200,000)	(17,800,000)
Credit Loss Allowance	0	0
Estimated Fair Value	598,100,000	448,000,000.0
U.S. treasury securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	251,200,000	66,500,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(1,100,000)	(700,000)
Credit Loss Allowance	0	0
Estimated Fair Value	250,100,000	65,800,000
Certificates of deposit
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	196,900,000
Gross Unrealized Gains	0
Gross Unrealized Losses	0
Credit Loss Allowance	0
Estimated Fair Value	196,900,000
Municipal bonds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	180,600,000	166,500,000
Gross Unrealized Gains	100,000	100,000
Gross Unrealized Losses	(5,000,000.0)	(4,400,000)
Credit Loss Allowance	0	0
Estimated Fair Value	175,700,000	162,200,000
Variable rate demand notes
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	94,400,000	69,400,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Credit Loss Allowance	0	0
Estimated Fair Value	94,400,000	69,400,000
Commercial paper
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	64,000,000.0
Gross Unrealized Gains	0
Gross Unrealized Losses	0
Credit Loss Allowance	0
Estimated Fair Value	64,000,000.0
U.S. agency securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	20,200,000	4,000,000.0
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(100,000)	(100,000)
Credit Loss Allowance	0	0
Estimated Fair Value	$ 20,100,000	$ 3,900,000

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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-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
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Amount, before tax, of unrealized loss 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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Amount excluding accrued interest, of allowance for credit loss 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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-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
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-URI https://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454

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Amortized cost excluding accrued interest, after allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current.

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-Publisher FASB
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