Cover Page Cover Page - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2020	Jan. 29, 2021	Jun. 30, 2020
Document Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2020
Document Transition Report	false
Entity File Number	1-225
Entity Registrant Name	KIMBERLY-CLARK CORPORATION
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	39-0394230
Entity Address, Address Line One	P.O. Box 619100
Entity Address, City or Town	Dallas
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	75261-9100
City Area Code	972
Local Phone Number	281-1200
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			$ 48.2
Entity Common Stock, Shares Outstanding		338,363,924
Documents Incorporated by Reference	Certain information contained in the definitive Proxy Statement for Kimberly-Clark's Annual Meeting of Stockholders to be held on April 29, 2021 is incorporated by reference into Part III.
Entity Central Index Key	0000055785
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Common Stock
Document Information [Line Items]
Title of 12(b) Security	Common Stock-$1.25 par value
Trading Symbol	KMB
Security Exchange Name	NYSE
0.625% Notes Due 2024
Document Information [Line Items]
Title of 12(b) Security	0.625% Notes due 2024
Trading Symbol	KMB24
Security Exchange Name	NYSE