v3.10.0.1
Document And Entity Information - USD ($)
$ in Billions
6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Entity Information [Line Items]    
Entity Registrant Name CCO HOLDINGS LLC  
Entity Central Index Key 0001271833  
Current Fiscal Year End Date --12-31  
Entity Filer Category Non-accelerated Filer  
Document Type 10-Q  
Document Period End Date Jun. 30, 2018  
Document Fiscal Year Focus 2018  
Document Fiscal Period Focus Q2  
Trading Symbol CCOH  
Entity Current Reporting Status Yes  
Entity Well-known Seasoned Issuer No  
Entity Voluntary Filers No  
Amendment Flag false  
Entity Common Stock, Shares Outstanding 1  
Entity Public Float   $ 0.0