Cover - USD ($)	12 Months Ended
	Dec. 31, 2019	Jun. 30, 2019
Cover page.
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2019
Document Transition Report	false
Entity File Number	001-35727
Entity Registrant Name	Netflix, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	77-0467272
Entity Address, Address Line One	100 Winchester Circle,
Entity Address, City or Town	Los Gatos
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	95032
City Area Code	408
Local Phone Number	540-3700
Title of 12(b) Security	Common stock, $0.001 par value per share
Trading Symbol	NFLX
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		$ 156,930,337,748
Entity Common Stock, Shares Outstanding	438,806,649
Entity Central Index Key	0001065280
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Amendment Flag	false