v3.3.1.900
Debt and Capital Lease Obligations (Telenet Credit Facility) (Details)
€ in Millions, $ in Millions
1 Months Ended 12 Months Ended
Apr. 30, 2014
EUR (€)
Apr. 30, 2014
USD ($)
Dec. 31, 2014
EUR (€)
Dec. 31, 2014
USD ($)
Apr. 30, 2014
USD ($)
Apr. 29, 2014
EUR (€)
Apr. 29, 2014
USD ($)
Telenet Credit Facility [Member]              
Line of Credit Facility [Line Items]              
Portion of debt, default of which triggers event of default     € 50.0 $ 60.5      
Unused borrowing capacity       390.8      
Outstanding principal amount       $ 1,638.6      
Telenet Facility M [Member]              
Line of Credit Facility [Line Items]              
Stated interest rate of debt     6.375% 6.375%      
Facility amount | €     € 500.0        
Unused borrowing capacity       $ 0.0      
Outstanding principal amount       $ 605.0      
Telenet Facility O [Member]              
Line of Credit Facility [Line Items]              
Stated interest rate of debt     6.625% 6.625%      
Facility amount | €     € 300.0        
Unused borrowing capacity       $ 0.0      
Outstanding principal amount       363.0      
Telenet Facility P [Member]              
Line of Credit Facility [Line Items]              
Line of credit interest rate description     EURIBOR        
Basis spread on variable rate     3.875%        
Facility amount | €     € 400.0        
Unused borrowing capacity       0.0      
Outstanding principal amount       484.0      
Telenet Facility S [Member]              
Line of Credit Facility [Line Items]              
Line of credit interest rate description     EURIBOR        
Basis spread on variable rate     2.75%        
Facility amount | €     € 36.9        
Unused borrowing capacity       44.7      
Outstanding principal amount       $ 0.0      
Telenet Facility U [Member]              
Line of Credit Facility [Line Items]              
Stated interest rate of debt     6.25% 6.25%      
Facility amount | €     € 450.0        
Unused borrowing capacity       $ 0.0      
Outstanding principal amount       $ 544.5      
Telenet Facility V [Member]              
Line of Credit Facility [Line Items]              
Stated interest rate of debt     6.75% 6.75%      
Facility amount | €     € 250.0        
Unused borrowing capacity       $ 0.0      
Outstanding principal amount       302.5      
Telenet Facility W [Member]              
Line of Credit Facility [Line Items]              
Line of credit interest rate description     EURIBOR        
Basis spread on variable rate     3.25%        
Facility amount | €     € 474.1        
Unused borrowing capacity       0.0      
Outstanding principal amount       572.5      
Telenet Facility X [Member]              
Line of Credit Facility [Line Items]              
Line of credit interest rate description     EURIBOR        
Basis spread on variable rate     2.75%        
Facility amount | €     € 286.0        
Unused borrowing capacity       346.1      
Outstanding principal amount       0.0      
Telenet Facility Y [Member]              
Line of Credit Facility [Line Items]              
Line of credit interest rate description     EURIBOR        
Basis spread on variable rate     3.50%        
Facility amount | €     € 882.9        
Unused borrowing capacity       0.0      
Outstanding principal amount       1,066.1      
Telenet Facility S and X [Member]              
Line of Credit Facility [Line Items]              
Fee on unused portion of credit facility     1.10%        
Elimination of Telenet Facilities M, N, O, P, U and V in Consolidation [Member]              
Line of Credit Facility [Line Items]              
Unused borrowing capacity       0.0      
Outstanding principal amount       $ (2,299.0)      
Telenet [Member]              
Line of Credit Facility [Line Items]              
Gains (losses) on extinguishment of debt   $ (11.9)          
Write off of deferred debt issuance cost   7.1          
Payment for debt redemption premium   3.6          
Amortization of debt discount (premium)   1.2          
Telenet [Member] | Telenet Facility S [Member]              
Line of Credit Facility [Line Items]              
Outstanding principal amount € 36.9       $ 44.7 € 158.0 $ 191.2
Telenet [Member] | Senior Secured Notes Due 2016 [Member]              
Line of Credit Facility [Line Items]              
Stated interest rate of debt 5.30%       5.30%    
Extinguishment of debt € 100.0 $ 121.0