v3.25.2
Debt (Component of Debt-Footnotes) (Details)
€ in Millions, $ in Millions
1 Months Ended 3 Months Ended 6 Months Ended
Jun. 30, 2025
USD ($)
Jun. 30, 2025
EUR (€)
Jun. 30, 2025
USD ($)
Jun. 30, 2024
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2025
EUR (€)
Jun. 30, 2024
USD ($)
Jun. 30, 2025
EUR (€)
Mar. 31, 2025
USD ($)
Mar. 31, 2025
EUR (€)
Dec. 31, 2024
USD ($)
Debt Instrument [Line Items]                      
Weighted average interest rate 4.91%   4.91%   4.91%     4.91%      
Available to borrow, upon completion of the relevant compliance reporting requirements $ 876.3   $ 876.3   $ 876.3            
Repayment of debt         658.8   $ 7.2        
Losses on debt extinguishment, net     0.9 $ 0.0 8.9   0.0        
Deferred liabilities 434.8   434.8   434.8           $ 390.5
Long-term Debt                      
Debt Instrument [Line Items]                      
Estimated fair value 9,700.0   9,700.0   9,700.0           9,000.0
Trade Accounts Receivable                      
Debt Instrument [Line Items]                      
Secured debt $ 220.6   $ 220.6   $ 220.6           $ 195.8
Aggregate Variable and Fixed Rate Indebtedness                      
Debt Instrument [Line Items]                      
Weighted average interest rate 3.74%   3.74%   3.74%     3.74%      
Telenet Credit Facility                      
Debt Instrument [Line Items]                      
Weighted average interest rate 5.47%   5.47%   5.47%     5.47%      
Telenet Credit Facility | Sunrise Holding Revolving Facility                      
Debt Instrument [Line Items]                      
Available to borrow $ 758.7   $ 758.7   $ 758.7     € 645.0      
Available to borrow, upon completion of the relevant compliance reporting requirements 758.7   758.7   758.7     645.0      
Available to loan or distribute 758.7   758.7   758.7     645.0      
Telenet Credit Facility | Debt Covenant, Scenario 1 | Sunrise Holding Revolving Facility                      
Debt Instrument [Line Items]                      
Available to borrow, upon completion of the relevant compliance reporting requirements 758.7   758.7   758.7     645.0      
Available to loan or distribute $ 758.7   $ 758.7   $ 758.7     € 645.0      
VM Ireland Credit Facility                      
Debt Instrument [Line Items]                      
Weighted average interest rate 5.51%   5.51%   5.51%     5.51%      
Available to borrow, upon completion of the relevant compliance reporting requirements $ 117.6   $ 117.6   $ 117.6     € 100.0      
VM Ireland Credit Facility | Sunrise Holding Revolving Facility                      
Debt Instrument [Line Items]                      
Available to borrow 117.6   117.6   117.6     100.0      
Available to borrow, upon completion of the relevant compliance reporting requirements 117.6   117.6   117.6     100.0      
Available to loan or distribute 117.6   117.6   117.6     100.0      
VM Ireland Credit Facility | Debt Covenant, Scenario 1 | Sunrise Holding Revolving Facility                      
Debt Instrument [Line Items]                      
Available to borrow, upon completion of the relevant compliance reporting requirements 117.6   117.6   117.6     100.0      
Available to loan or distribute 117.6   117.6   117.6     100.0      
Telenet Revolving Credit Facility B                      
Debt Instrument [Line Items]                      
Available to borrow, upon completion of the relevant compliance reporting requirements 705.8   705.8   705.8     600.0      
Telenet Overdraft Facility                      
Debt Instrument [Line Items]                      
Available to borrow, upon completion of the relevant compliance reporting requirements 29.4   29.4   29.4     25.0      
Telenet Revolving Facility                      
Debt Instrument [Line Items]                      
Available to borrow, upon completion of the relevant compliance reporting requirements 23.5   23.5   23.5     20.0      
Telenet Revolving Facility I                      
Debt Instrument [Line Items]                      
Available to borrow, upon completion of the relevant compliance reporting requirements 705.8   $ 705.8   $ 705.8     € 600.0      
Maximum borrowing capacity, period increase (decrease) $ 35.3 € 30.0                  
VM Ireland Revolving Facility                      
Debt Instrument [Line Items]                      
Available to borrow, upon completion of the relevant compliance reporting requirements                 $ 13.1 € 11.1  
Vodafone Collar Loan                      
Debt Instrument [Line Items]                      
Weighted average interest rate 2.95%   2.95%   2.95%     2.95%      
Repayment of debt         $ 99.7 € 84.8          
Losses on debt extinguishment, net         $ 0.9 € 0.8          
Vendor financing                      
Debt Instrument [Line Items]                      
Weighted average interest rate 4.59%   4.59%   4.59%     4.59%      
Operating-related vendor financing additions         $ 151.6   $ 170.6