Cover Page - USD ($) shares in Millions, $ in Billions	12 Months Ended
	Dec. 31, 2019	Jan. 31, 2020	Jun. 30, 2019
Cover Page [Abstract]
Document Type	10-K
Document Period End Date	Dec. 31, 2019
Entity File Number	1-9608
Entity Registrant Name	NEWELL BRANDS INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	36-3514169
Entity Address, Address Line One	6655 Peachtree Dunwoody Road,
Entity Address, City or Town	Atlanta,
Entity Address, State or Province	GA
Entity Address, Postal Zip Code	30328
City Area Code	770
Local Phone Number	418-7000
Title of 12(b) Security	Common Stock, $1 par value per share
Trading Symbol	NWL
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 Common Stock, Shares Outstanding		423.5
Entity Public Float			$ 6.5
Amendment Flag	false
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Entity Central Index Key	0000814453
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Document Annual Report	true