Cover Page - USD ($) $ in Billions	12 Months Ended
	Jan. 31, 2020	Feb. 28, 2020	Jul. 31, 2019
Cover [Abstract]
Document Annual Report	true
Document Period End Date	Jan. 31, 2020
Document Transition Report	false
Entity File Number	001-38465
Entity Registrant Name	DOCUSIGN, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	91-2183967
Entity Address, Address Line One	221 Main St.
Entity Address, Address Line Two	Suite 1550
Entity Address, City or Town	San Francisco
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94105
City Area Code	415
Local Phone Number	489-4940
Title of 12(b) Security	Common Stock, par value $0.0001 per share
Trading Symbol	DOCU
Security Exchange Name	NASDAQ
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			$ 8.6
Entity Common Stock, Shares Outstanding		181,456,115
Entity Central Index Key	0001261333
Current Fiscal Year End Date	--01-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Amendment Flag	false
Document Type	10-K
Documents Incorporated by Reference	Portions of the definitive proxy statement for our 2020 Annual Meeting of Stockholders are incorporated by reference in Part III of this Form 10-K. We intend to file such proxy statement with the Securities and Exchange Commission (" the SEC"), within 120 days of the fiscal year ended January 31, 2020.