Cover Page - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2020	Feb. 05, 2021	Jun. 30, 2020
Entity Information [Line Items]
Document Type	10-K
Document Period End Date	Dec. 31, 2020
Current Fiscal Year End Date	--12-31
Entity File Number	1-9278
Entity Registrant Name	CARLISLE COMPANIES INCORPORATED
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	31-1168055
Entity Address, Address Line One	16430 North Scottsdale Road
Entity Address, Address Line Two	Suite 400
Entity Address, City or Town	Scottsdale
Entity Address, State or Province	AZ
Entity Address, Postal Zip Code	85254
City Area Code	480
Local Phone Number	781-5000
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
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 6.5
Entity Common Stock, Shares Outstanding		53,291,296
Documents Incorporated by Reference	Portions of the definitive Proxy Statement for the Annual Meeting of Shareholders to be held on May 5, 2021 are incorporated by reference in Part III.
Entity Central Index Key	0000790051
Amendment Flag	false
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Document Annual Report	true
Document Transition Report	false
Common Stock
Entity Information [Line Items]
Title of 12(b) Security	Common stock, $1 par value
Trading Symbol	CSL
Security Exchange Name	NYSE
Preferred Stock
Entity Information [Line Items]
Title of 12(b) Security	Preferred Stock Purchase Rights, $1 par value
Security Exchange Name	NYSE