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Fair Value of Financial Instruments - Summary (Details) - USD ($) $ in Millions | Jun. 25, 2023 | Jun. 26, 2022
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Assets, Fair Value Disclosure [Abstract] |  |
Total cash equivalents | $ 258.1 | $ 244.3
Total short-term investments | 1,197.9 | 749.3
Total assets | 1,456.0 | 993.6
Corporate bonds |  |
Assets, Fair Value Disclosure [Abstract] |  |
Total short-term investments | 495.6 | 448.0
U.S. treasury securities |  |
Assets, Fair Value Disclosure [Abstract] |  |
Total short-term investments | 260.4 | 65.8
Municipal bonds |  |
Assets, Fair Value Disclosure [Abstract] |  |
Total short-term investments | 175.3 | 162.2
Certificates of deposit |  |
Assets, Fair Value Disclosure [Abstract] |  |
Total short-term investments | 112.3 | 0.0
U.S. agency securities |  |
Assets, Fair Value Disclosure [Abstract] |  |
Total short-term investments | 76.8 | 3.9
Commercial paper |  |
Assets, Fair Value Disclosure [Abstract] |  |
Total short-term investments | 50.2 | 0.0
Variable rate demand notes |  |
Assets, Fair Value Disclosure [Abstract] |  |
Total short-term investments | 27.3 | 69.4
Money market funds |  |
Assets, Fair Value Disclosure [Abstract] |  |
Total cash equivalents | 230.4 | 115.9
U.S. treasury securities |  |
Assets, Fair Value Disclosure [Abstract] |  |
Total cash equivalents | 20.7 | 69.0
Commercial paper |  |
Assets, Fair Value Disclosure [Abstract] |  |
Total cash equivalents | 7.0 | 59.4
Level 1 |  |
Assets, Fair Value Disclosure [Abstract] |  |
Total cash equivalents | 251.1 | 184.9
Total short-term investments | 260.4 | 65.8
Total assets | 511.5 | 250.7
Level 1 | Corporate bonds |  |
Assets, Fair Value Disclosure [Abstract] |  |
Total short-term investments | 0.0 | 0.0
Level 1 | U.S. treasury securities |  |
Assets, Fair Value Disclosure [Abstract] |  |
Total short-term investments | 260.4 | 65.8
Level 1 | Municipal bonds |  |
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 | U.S. agency securities |  |
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 | 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 | 230.4 | 115.9
Level 1 | U.S. treasury securities |  |
Assets, Fair Value Disclosure [Abstract] |  |
Total cash equivalents | 20.7 | 69.0
Level 1 | Commercial paper |  |
Assets, Fair Value Disclosure [Abstract] |  |
Total cash equivalents | 0.0 | 0.0
Level 2 |  |
Assets, Fair Value Disclosure [Abstract] |  |
Total cash equivalents | 7.0 | 59.4
Total short-term investments | 937.5 | 683.5
Total assets | 944.5 | 742.9
Level 2 | Corporate bonds |  |
Assets, Fair Value Disclosure [Abstract] |  |
Total short-term investments | 495.6 | 448.0
Level 2 | U.S. treasury securities |  |
Assets, Fair Value Disclosure [Abstract] |  |
Total short-term investments | 0.0 | 0.0
Level 2 | Municipal bonds |  |
Assets, Fair Value Disclosure [Abstract] |  |
Total short-term investments | 175.3 | 162.2
Level 2 | Certificates of deposit |  |
Assets, Fair Value Disclosure [Abstract] |  |
Total short-term investments | 112.3 | 0.0
Level 2 | U.S. agency securities |  |
Assets, Fair Value Disclosure [Abstract] |  |
Total short-term investments | 76.8 | 3.9
Level 2 | Commercial paper |  |
Assets, Fair Value Disclosure [Abstract] |  |
Total short-term investments | 50.2 | 0.0
Level 2 | Variable rate demand notes |  |
Assets, Fair Value Disclosure [Abstract] |  |
Total short-term investments | 27.3 | 69.4
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 | $ 7.0 | $ 59.4

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- Definition 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 -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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- Definition 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. + References No definition available. + Details
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- Definition 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 -URI https://asc.fasb.org//1943274/2147479130/326-30-45-1 + Details
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