XML 84 R70.htm IDEA: XBRL DOCUMENT v3.21.2
Investments - Contractual Maturities of Marketable Investments (Details) - USD ($)
$ in Millions
Jun. 27, 2021
Jun. 28, 2020
Debt Securities, Available-for-sale [Line Items]    
Within One Year $ 199.7  
After One, Within Five Years 555.9  
After Five, Within Ten Years 0.0  
After Ten Years 20.0  
Total 775.6 $ 790.9
Municipal bonds    
Debt Securities, Available-for-sale [Line Items]    
Within One Year 24.7  
After One, Within Five Years 116.6  
After Five, Within Ten Years 0.0  
After Ten Years 0.0  
Total 141.3 132.0
Corporate bonds    
Debt Securities, Available-for-sale [Line Items]    
Within One Year 80.3  
After One, Within Five Years 379.2  
After Five, Within Ten Years 0.0  
After Ten Years 0.0  
Total 459.5 480.1
U.S. agency securities    
Debt Securities, Available-for-sale [Line Items]    
Within One Year 3.5  
After One, Within Five Years 12.3  
After Five, Within Ten Years 0.0  
After Ten Years 0.0  
Total 15.8 29.1
U.S. treasury securities    
Debt Securities, Available-for-sale [Line Items]    
Within One Year 24.7  
After One, Within Five Years 47.8  
After Five, Within Ten Years 0.0  
After Ten Years 0.0  
Total 72.5 52.9
Certificates of deposit    
Debt Securities, Available-for-sale [Line Items]    
Within One Year 16.5  
After One, Within Five Years 0.0  
After Five, Within Ten Years 0.0  
After Ten Years 0.0  
Total 16.5 83.3
Commercial paper    
Debt Securities, Available-for-sale [Line Items]    
Within One Year 50.0  
After One, Within Five Years 0.0  
After Five, Within Ten Years 0.0  
After Ten Years 0.0  
Total 50.0 11.0
Variable rate demand note    
Debt Securities, Available-for-sale [Line Items]    
Within One Year 0.0  
After One, Within Five Years 0.0  
After Five, Within Ten Years 0.0  
After Ten Years 20.0  
Total $ 20.0 $ 2.5