Cover Page	6 Months Ended
	Dec. 31, 2020 shares
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Dec. 31, 2020
Document Transition Report	false
Entity File Number	1-4982
Entity Registrant Name	PARKER-HANNIFIN CORPORATION
Entity Incorporation, State or Country Code	OH
Entity Tax Identification Number	34-0451060
Entity Address, Address Line One	6035 Parkland Boulevard,
Entity Address, City or Town	Cleveland,
Entity Address, State or Province	OH
Entity Address, Postal Zip Code	44124-4141
City Area Code	216
Local Phone Number	896-3000
Title of 12(b) Security	Common Shares, $.50 par value
Trading Symbol	PH
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding	129,081,165
Entity Central Index Key	0000076334
Current Fiscal Year End Date	--06-30
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Amendment Flag	false