Cover - USD ($) $ in Billions	12 Months Ended
	Jan. 31, 2020	Mar. 06, 2020	Jul. 31, 2019
Entity Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Transition Report	false
Amendment Flag	false
Document Period End Date	Jan. 31, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Entity Registrant Name	Zoom Video Communications, Inc.
Entity Central Index Key	0001585521
Current Fiscal Year End Date	--01-31
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Current Reporting Status	Yes
Entity Public Float			$ 3,600,000.0
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Class A Common Stock
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		127,468,829
Class B Common Stock
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		151,532,787