v2.4.0.6
Document and Entity Information Document (USD $)
In Billions, except Share data, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Jan. 31, 2012
Jun. 30, 2011
Document Information [Line Items]      
Entity Registrant Name CINCINNATI BELL INC.    
Entity Central Index Key 0000716133    
Current Fiscal Year End Date --12-31    
Entity Filer Category Large Accelerated Filer    
Document Type 10-K    
Document Period End Date Dec. 31, 2011    
Document Fiscal Year Focus 2011    
Document Fiscal Period Focus FY    
Amendment Flag false    
Entity Common Stock, Shares Outstanding   196,589,670  
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Public Float     $ 0.6