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Document and Entity Information - USD ($)
 12 Months Ended
Dec. 31, 2021
Feb. 11, 2022
Jun. 30, 2021
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Dec. 31, 2021    
Document Fiscal Year Focus 2021    
Document Fiscal Period Focus FY    
Current Fiscal Year End Date --12-31    
Entity File Number 001-15925    
Entity Registrant Name COMMUNITY HEALTH SYSTEMS, INC.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 13-3893191    
Entity Address, Address Line One 4000 Meridian Boulevard    
Entity Address, City or Town Franklin    
Entity Address, State or Province TN    
Entity Address, Postal Zip Code 37067    
City Area Code 615    
Local Phone Number 465-7000    
Title of 12(b) Security Common Stock, $.01 par value    
Trading Symbol CYH    
Security Exchange Name NYSE    
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   132,116,361  
Entity Central Index Key 0001108109    
Amendment Flag false    
Entity Public Float     $ 1,894,957,351
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
ICFR Auditor Attestation Flag true    
Auditor Firm ID 34    
Auditor Name Deloitte & Touche LLP    
Auditor Location Nashville, Tennessee    
Documents Incorporated by Reference

DOCUMENTS INCORPORATED BY REFERENCE

 

Certain information required for Part III of this annual report is incorporated by reference to portions of the Registrant’s definitive proxy statement for its 2022 annual meeting of stockholders to be filed with the Securities and Exchange Commission within 120 days after the end of the Registrant’s fiscal year ended December 31, 2021.