Annual report pursuant to Section 13 and 15(d)

Long-Term Financing (Narrative) (Details)

v3.19.2
Long-Term Financing (Narrative) (Details) - USD ($)
$ in Millions
May 31, 2019
Mar. 13, 2019
May 31, 2018
Aggregate principal amount $ 800.0    
Long-term debt outstanding     $ 0.0
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    
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    
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