Annual report pursuant to Section 13 and 15(d)

Short-term Financing (Description of Credit Facilities) (Details)

v3.10.0.1
Short-term Financing (Description of Credit Facilities) (Details)
$ in Millions
 12 Months Ended
May 31, 2018
USD ($)
 [1]
Paychex of New York, LLC [Member] | JP Morgan Chase Bank, N.A. [Member] | JPM $1 Billion Credit Facility [Member]  
Line of Credit Facility [Line Items]  
Date Entered Aug. 05, 2015 [2]
Expiration Date Aug. 05, 2020 [2]
Maximum Amount Available $ 1,000 [2]
Paychex of New York, LLC [Member] | JP Morgan Chase Bank, N.A. [Member] | JPM $500 Million Credit Facility [Member]  
Line of Credit Facility [Line Items]  
Date Entered Aug. 17, 2017 [2]
Expiration Date Aug. 17, 2022 [2]
Maximum Amount Available $ 500 [2]
Paychex Advance, LLC [Member] | PNC Bank, National Association [Member] | PNC $150 Million Credit Facility [Member]  
Line of Credit Facility [Line Items]  
Date Entered Mar. 17, 2016
Expiration Date Mar. 17, 2020
Maximum Amount Available $ 150
[1] Borrower is a wholly owned subsidiary of the Company.
[2] JP Morgan Chase Bank, N.A. ("JPM") acts as the administrative agent for this syndicated credit facility.