Basis of Presentation (Details) $ in Millions |
9 Months Ended | ||
|---|---|---|---|
|
Sep. 30, 2026
USD ($)
market
country
segment
|
Oct. 31, 2026
USD ($)
|
Dec. 31, 2025
USD ($)
|
|
| Basis of Presentation [Line Items] | |||
| Number of reportable segments | segment | 2 | ||
| Principal amount redeemed | $ 8,506.4 | $ 8,349.8 | |
| 2027 LPR Senior Secured Notes | Line of Credit | Subsequent Event | |||
| Basis of Presentation [Line Items] | |||
| Principal amount redeemed | $ 1,161.0 | ||
| Debt instrument, covenant, equity interest owed to creditor | 1 | ||
| Residential and Business-to-Business Services | |||
| Basis of Presentation [Line Items] | |||
| Number of countries in which entity provides services (over) | country | 20 | ||
| Wholesale Communication Services | Cable & Wireless Communications Limited (C&W) | |||
| Basis of Presentation [Line Items] | |||
| Number of markets (over) | market | 30 | ||
| Telefónica Costa Rica. C&W | |||
| Basis of Presentation [Line Items] | |||
| Percentage ownership of subsidiaries (less than) | 100.00% |