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Fair Value of Financial Instruments - Summary (Details) - USD ($) $ in Millions	Sep. 24, 2023	Jun. 25, 2023
Assets, Fair Value Disclosure [Abstract]
Total cash equivalents	$ 506.8	$ 258.1
Total short-term investments	1,585.6	1,197.9
Total cash equivalents and short-term investments	2,092.4	1,456.0
U.S. treasury securities
Assets, Fair Value Disclosure [Abstract]
Total short-term investments	690.3	260.4
Corporate bonds
Assets, Fair Value Disclosure [Abstract]
Total short-term investments	468.8	495.6
Municipal bonds
Assets, Fair Value Disclosure [Abstract]
Total short-term investments	141.7	175.3
Commercial paper
Assets, Fair Value Disclosure [Abstract]
Total short-term investments	127.9	50.2
U.S. agency securities
Assets, Fair Value Disclosure [Abstract]
Total short-term investments	72.6	76.8
Certificates of deposit
Assets, Fair Value Disclosure [Abstract]
Total short-term investments	57.1	112.3
Variable rate demand notes
Assets, Fair Value Disclosure [Abstract]
Total short-term investments	27.2	27.3
Money market funds
Assets, Fair Value Disclosure [Abstract]
Total cash equivalents	388.0	230.4
U.S. treasury securities
Assets, Fair Value Disclosure [Abstract]
Total cash equivalents	107.5	20.7
Commercial paper
Assets, Fair Value Disclosure [Abstract]
Total cash equivalents	7.5	7.0
Certificates of deposit
Assets, Fair Value Disclosure [Abstract]
Total cash equivalents	3.8	0.0
Level 1
Assets, Fair Value Disclosure [Abstract]
Total cash equivalents	495.5	251.1
Total short-term investments	690.3	260.4
Total cash equivalents and short-term investments	1,185.8	511.5
Level 1 | U.S. treasury securities
Assets, Fair Value Disclosure [Abstract]
Total short-term investments	690.3	260.4
Level 1 | Corporate bonds
Assets, Fair Value Disclosure [Abstract]
Total short-term investments	0.0	0.0
Level 1 | Municipal bonds
Assets, Fair Value Disclosure [Abstract]
Total short-term investments	0.0	0.0
Level 1 | Commercial paper
Assets, Fair Value Disclosure [Abstract]
Total short-term investments	0.0	0.0
Level 1 | U.S. agency securities
Assets, Fair Value Disclosure [Abstract]
Total short-term investments	0.0	0.0
Level 1 | Certificates of deposit
Assets, Fair Value Disclosure [Abstract]
Total short-term investments	0.0	0.0
Level 1 | Variable rate demand notes
Assets, Fair Value Disclosure [Abstract]
Total short-term investments	0.0	0.0
Level 1 | Money market funds
Assets, Fair Value Disclosure [Abstract]
Total cash equivalents	388.0	230.4
Level 1 | U.S. treasury securities
Assets, Fair Value Disclosure [Abstract]
Total cash equivalents	107.5	20.7
Level 1 | Commercial paper
Assets, Fair Value Disclosure [Abstract]
Total cash equivalents	0.0	0.0
Level 1 | Certificates of deposit
Assets, Fair Value Disclosure [Abstract]
Total cash equivalents	0.0	0.0
Level 2
Assets, Fair Value Disclosure [Abstract]
Total cash equivalents	11.3	7.0
Total short-term investments	895.3	937.5
Total cash equivalents and short-term investments	906.6	944.5
Level 2 | U.S. treasury securities
Assets, Fair Value Disclosure [Abstract]
Total short-term investments	0.0	0.0
Level 2 | Corporate bonds
Assets, Fair Value Disclosure [Abstract]
Total short-term investments	468.8	495.6
Level 2 | Municipal bonds
Assets, Fair Value Disclosure [Abstract]
Total short-term investments	141.7	175.3
Level 2 | Commercial paper
Assets, Fair Value Disclosure [Abstract]
Total short-term investments	127.9	50.2
Level 2 | U.S. agency securities
Assets, Fair Value Disclosure [Abstract]
Total short-term investments	72.6	76.8
Level 2 | Certificates of deposit
Assets, Fair Value Disclosure [Abstract]
Total short-term investments	57.1	112.3
Level 2 | Variable rate demand notes
Assets, Fair Value Disclosure [Abstract]
Total short-term investments	27.2	27.3
Level 2 | Money market funds
Assets, Fair Value Disclosure [Abstract]
Total cash equivalents	0.0	0.0
Level 2 | U.S. treasury securities
Assets, Fair Value Disclosure [Abstract]
Total cash equivalents	0.0	0.0
Level 2 | Commercial paper
Assets, Fair Value Disclosure [Abstract]
Total cash equivalents	7.5	7.0
Level 2 | Certificates of deposit
Assets, Fair Value Disclosure [Abstract]
Total cash equivalents	$ 3.8	$ 0.0

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Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
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