BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $)
In Millions, unless otherwise specified
1 Months Ended
Jun. 30, 2009
Mar. 31, 2015
Feb. 12, 2014
Dec. 31, 2014
Nature of Business [Line Items]        
Stock Repurchase Program, Authorized Amount     $ 300  
Stock Repurchase Program, Remaining Authorized Repurchase Amount   $ 275    
Sponsorship agreement        
Sponsorship agreement term 10 years      
Vantiv Holding        
Nature of Business [Line Items]        
Ownership percentage by parent   77.23%   77.17%
Fifth Third | Vantiv Holding        
Nature of Business [Line Items]        
Ownership percentage by noncontrolling owners   22.77%   22.83%