Cover Page - shares	3 Months Ended
	Nov. 30, 2019	Jan. 01, 2020
Cover page.
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Nov. 30, 2019
Document Transition Report	false
Entity File Number	001-14063
Entity Registrant Name	JABIL INC
Amendment Flag	false
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
Entity Central Index Key	0000898293
Current Fiscal Year End Date	--08-31
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	38-1886260
Entity Address, Address Line One	10560 Dr. Martin Luther King, Jr. Street North
Entity Address, City or Town	St. Petersburg
Entity Address, State or Province	FL
Entity Address, Postal Zip Code	33716
City Area Code	727
Local Phone Number	577-9749
Title of 12(b) Security	Common Stock, $0.001 par value per share
Trading Symbol	JBL
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		152,089,713