Derivative Instruments (Interest Rate Swap Contracts, Options and Basis Swaps) (Details) $ in Millions |
6 Months Ended |
|---|---|
|
Jun. 30, 2026
USD ($)
| |
| Interest Rate Swap | Notional amount due from counterparty | Telenet | |
| Derivative [Line Items] | |
| Notional amount | $ 4,120.5 |
| Weighted average remaining life | 2 years 9 months 18 days |
| Interest Rate Swap | Notional amount due from counterparty | Other | |
| Derivative [Line Items] | |
| Notional amount | $ 248.9 |
| Weighted average remaining life | 19 years 6 months |
| Interest Rate Swap | Notional amount due to counterparty | Telenet | |
| Derivative [Line Items] | |
| Notional amount | $ 0.0 |
| Interest Rate Swap | Notional amount due to counterparty | Other | |
| Derivative [Line Items] | |
| Notional amount | 0.0 |
| Basis Swaps | Notional amount due from counterparty | Telenet | |
| Derivative [Line Items] | |
| Notional amount | 3,562.0 |
| Basis Swaps | Notional amount due from counterparty | VM Ireland | |
| Derivative [Line Items] | |
| Notional amount | $ 1,027.3 |