Annual report pursuant to Section 13 and 15(d)

Long-Term Financing (Narrative) (Details)

v3.20.2
Long-Term Financing (Narrative) (Details) - USD ($)
$ in Millions
May 31, 2020
May 31, 2019
Mar. 13, 2019
Aggregate principal amount $ 800.0 $ 800.0  
Company And Paychex Of New York [Member]      
Aggregate principal amount     $ 800.0
Senior Notes, Series A [Member] | Senior Notes [Member]      
Aggregate principal amount $ 400.0 400.0  
Principal payment dates Mar. 13, 2026    
Senior Notes, Series A [Member] | Senior Notes [Member] | Company And Paychex Of New York [Member]      
Aggregate principal amount     $ 400.0
Principal payment dates     Mar. 13, 2026
Senior Notes, Series B [Member] | Senior Notes [Member]      
Aggregate principal amount $ 400.0 $ 400.0  
Principal payment dates Mar. 13, 2029    
Senior Notes, Series B [Member] | Senior Notes [Member] | Company And Paychex Of New York [Member]      
Aggregate principal amount     $ 400.0
Principal payment dates     Mar. 13, 2029