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Investments - Schedule of Contractual Maturities of Short-term Investments by Type (Details) - USD ($)
$ in Millions
Jun. 30, 2024
Jun. 25, 2023
Debt Securities, Available-for-sale [Line Items]    
Within One Year $ 901.5  
After One, Within Five Years 224.8  
After Five, Within Ten Years 0.0  
After Ten Years 2.4  
Total 1,128.7 $ 1,197.9
Corporate bonds    
Debt Securities, Available-for-sale [Line Items]    
Within One Year 262.0  
After One, Within Five Years 155.0  
After Five, Within Ten Years 0.0  
After Ten Years 0.0  
Total 417.0 495.6
U.S. treasury securities    
Debt Securities, Available-for-sale [Line Items]    
Within One Year 538.0  
After One, Within Five Years 14.7  
After Five, Within Ten Years 0.0  
After Ten Years 0.0  
Total 552.7 260.4
Municipal bonds    
Debt Securities, Available-for-sale [Line Items]    
Within One Year 43.3  
After One, Within Five Years 55.1  
After Five, Within Ten Years 0.0  
After Ten Years 2.4  
Total 100.8 175.3
Certificates of deposit    
Debt Securities, Available-for-sale [Line Items]    
Within One Year 31.5  
After One, Within Five Years 0.0  
After Five, Within Ten Years 0.0  
After Ten Years 0.0  
Total 31.5 112.3
U.S. agency securities    
Debt Securities, Available-for-sale [Line Items]    
Within One Year 10.0  
After One, Within Five Years 0.0  
After Five, Within Ten Years 0.0  
After Ten Years 0.0  
Total 10.0 $ 76.8
Commercial paper    
Debt Securities, Available-for-sale [Line Items]    
Within One Year 16.7  
After One, Within Five Years 0.0  
After Five, Within Ten Years 0.0  
After Ten Years 0.0  
Total $ 16.7