Document And Entity Information - USD ($) $ in Billions	12 Months Ended
	Mar. 31, 2020	May 25, 2020	Sep. 30, 2018
Document Type	10-K
Document Annual Report	true
Document Transition Report	false
Amendment Flag	false
Document Period End Date	Mar. 31, 2020
Entity File Number	001-00652
Entity Registrant Name	UNIVERSAL CORPORATION
Entity Incorporation, State or Country Code	VA
Entity Tax Identification Number	54-0414210
Entity Address, Address Line One	9201 Forest Hill Avenue,
Entity Address, City or Town	Richmond,
Entity Address, State or Province	VA
Entity Address, Postal Zip Code	23235
City Area Code	804
Local Phone Number	359-9311
Title of 12(b) Security	Common Stock, no par value
Trading Symbol	UVV
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
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 Public Float			$ 1.3
Entity Common Stock, Shares Outstanding		24,431,137
Entity Central Index Key	0000102037
Current Fiscal Year End Date	--03-31
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2020