v3.25.4
Segment Reporting - Schedule of Revenue by Major Category (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Principal Transaction Revenue [Line Items]      
Revenue $ 4,442.2 $ 4,446.8 $ 4,511.1
Total residential revenue      
Principal Transaction Revenue [Line Items]      
Revenue 3,005.1 2,972.4 3,014.2
Total residential fixed revenue      
Principal Transaction Revenue [Line Items]      
Revenue 1,289.2 1,311.6 1,299.2
Subscription revenue      
Principal Transaction Revenue [Line Items]      
Revenue 1,199.7 1,220.1 1,227.0
Non-subscription revenue      
Principal Transaction Revenue [Line Items]      
Revenue 89.5 91.5 72.2
Total residential mobile revenue      
Principal Transaction Revenue [Line Items]      
Revenue 1,715.9 1,660.8 1,715.0
Service revenue      
Principal Transaction Revenue [Line Items]      
Revenue 1,256.4 1,223.8 1,231.7
Interconnect, inbound roaming ,equipment sales and other      
Principal Transaction Revenue [Line Items]      
Revenue 459.5 437.0 483.3
B2B revenue      
Principal Transaction Revenue [Line Items]      
Revenue 1,410.2 1,440.8 1,456.4
Other revenue      
Principal Transaction Revenue [Line Items]      
Revenue 26.9 33.6 40.5
Mobile Handsetand Other Devices      
Principal Transaction Revenue [Line Items]      
Revenue 248.0 216.0 259.0
B2B Mobile Handset and Other Devices      
Principal Transaction Revenue [Line Items]      
Revenue 26.0 24.0 26.0
Liberty Networks, Other      
Principal Transaction Revenue [Line Items]      
Revenue 94.0 91.0 89.0
Operating Segments      
Principal Transaction Revenue [Line Items]      
Revenue 4,540.9 4,537.0 4,598.5
Operating Segments | Liberty Caribbean      
Principal Transaction Revenue [Line Items]      
Revenue 1,455.0 1,462.8 1,437.0
Operating Segments | Liberty Caribbean | Total residential revenue      
Principal Transaction Revenue [Line Items]      
Revenue 952.5 946.0 925.6
Operating Segments | Liberty Caribbean | Total residential fixed revenue      
Principal Transaction Revenue [Line Items]      
Revenue 504.6 514.2 516.5
Operating Segments | Liberty Caribbean | Subscription revenue      
Principal Transaction Revenue [Line Items]      
Revenue 484.4 486.2 487.5
Operating Segments | Liberty Caribbean | Non-subscription revenue      
Principal Transaction Revenue [Line Items]      
Revenue 20.2 28.0 29.0
Operating Segments | Liberty Caribbean | Total residential mobile revenue      
Principal Transaction Revenue [Line Items]      
Revenue 447.9 431.8 409.1
Operating Segments | Liberty Caribbean | Service revenue      
Principal Transaction Revenue [Line Items]      
Revenue 364.3 352.3 330.3
Operating Segments | Liberty Caribbean | Interconnect, inbound roaming ,equipment sales and other      
Principal Transaction Revenue [Line Items]      
Revenue 83.6 79.5 78.8
Operating Segments | Liberty Caribbean | B2B revenue      
Principal Transaction Revenue [Line Items]      
Revenue 502.5 516.8 511.4
Operating Segments | Liberty Caribbean | Other revenue      
Principal Transaction Revenue [Line Items]      
Revenue 0.0 0.0 0.0
Operating Segments | C&W Panama      
Principal Transaction Revenue [Line Items]      
Revenue 783.5 763.2 742.6
Operating Segments | C&W Panama | Total residential revenue      
Principal Transaction Revenue [Line Items]      
Revenue 478.6 460.5 434.6
Operating Segments | C&W Panama | Total residential fixed revenue      
Principal Transaction Revenue [Line Items]      
Revenue 122.4 127.3 122.0
Operating Segments | C&W Panama | Subscription revenue      
Principal Transaction Revenue [Line Items]      
Revenue 117.3 122.3 116.5
Operating Segments | C&W Panama | Non-subscription revenue      
Principal Transaction Revenue [Line Items]      
Revenue 5.1 5.0 5.5
Operating Segments | C&W Panama | Total residential mobile revenue      
Principal Transaction Revenue [Line Items]      
Revenue 356.2 333.2 312.6
Operating Segments | C&W Panama | Service revenue      
Principal Transaction Revenue [Line Items]      
Revenue 290.7 272.2 260.6
Operating Segments | C&W Panama | Interconnect, inbound roaming ,equipment sales and other      
Principal Transaction Revenue [Line Items]      
Revenue 65.5 61.0 52.0
Operating Segments | C&W Panama | B2B revenue      
Principal Transaction Revenue [Line Items]      
Revenue 304.9 302.7 308.0
Operating Segments | C&W Panama | Other revenue      
Principal Transaction Revenue [Line Items]      
Revenue 0.0 0.0 0.0
Operating Segments | Liberty Networks      
Principal Transaction Revenue [Line Items]      
Revenue 471.0 447.5 453.3
Operating Segments | Liberty Networks | Total residential revenue      
Principal Transaction Revenue [Line Items]      
Revenue 0.0 0.0 0.0
Operating Segments | Liberty Networks | Total residential fixed revenue      
Principal Transaction Revenue [Line Items]      
Revenue 0.0 0.0 0.0
Operating Segments | Liberty Networks | Subscription revenue      
Principal Transaction Revenue [Line Items]      
Revenue 0.0 0.0 0.0
Operating Segments | Liberty Networks | Non-subscription revenue      
Principal Transaction Revenue [Line Items]      
Revenue 0.0 0.0 0.0
Operating Segments | Liberty Networks | Total residential mobile revenue      
Principal Transaction Revenue [Line Items]      
Revenue 0.0 0.0 0.0
Operating Segments | Liberty Networks | Service revenue      
Principal Transaction Revenue [Line Items]      
Revenue 0.0 0.0 0.0
Operating Segments | Liberty Networks | Interconnect, inbound roaming ,equipment sales and other      
Principal Transaction Revenue [Line Items]      
Revenue 0.0 0.0 0.0
Operating Segments | Liberty Networks | B2B revenue      
Principal Transaction Revenue [Line Items]      
Revenue 471.0 447.5 453.3
Operating Segments | Liberty Networks | Other revenue      
Principal Transaction Revenue [Line Items]      
Revenue 0.0 0.0 0.0
Operating Segments | Liberty Puerto Rico      
Principal Transaction Revenue [Line Items]      
Revenue 1,199.2 1,250.4 1,417.7
Operating Segments | Liberty Puerto Rico | Total residential revenue      
Principal Transaction Revenue [Line Items]      
Revenue 997.9 1,010.1 1,152.9
Operating Segments | Liberty Puerto Rico | Total residential fixed revenue      
Principal Transaction Revenue [Line Items]      
Revenue 493.7 497.8 504.2
Operating Segments | Liberty Puerto Rico | Subscription revenue      
Principal Transaction Revenue [Line Items]      
Revenue 469.7 474.5 478.7
Operating Segments | Liberty Puerto Rico | Non-subscription revenue      
Principal Transaction Revenue [Line Items]      
Revenue 24.0 23.3 25.5
Operating Segments | Liberty Puerto Rico | Total residential mobile revenue      
Principal Transaction Revenue [Line Items]      
Revenue 504.2 512.3 648.7
Operating Segments | Liberty Puerto Rico | Service revenue      
Principal Transaction Revenue [Line Items]      
Revenue 306.4 323.3 398.7
Operating Segments | Liberty Puerto Rico | Interconnect, inbound roaming ,equipment sales and other      
Principal Transaction Revenue [Line Items]      
Revenue 197.8 189.0 250.0
Operating Segments | Liberty Puerto Rico | B2B revenue      
Principal Transaction Revenue [Line Items]      
Revenue 174.4 206.7 224.3
Operating Segments | Liberty Puerto Rico | Other revenue      
Principal Transaction Revenue [Line Items]      
Revenue 26.9 33.6 40.5
Operating Segments | Liberty Costa Rica      
Principal Transaction Revenue [Line Items]      
Revenue 632.2 613.1 547.9
Operating Segments | Liberty Costa Rica | Total residential revenue      
Principal Transaction Revenue [Line Items]      
Revenue 563.3 537.2 480.9
Operating Segments | Liberty Costa Rica | Total residential fixed revenue      
Principal Transaction Revenue [Line Items]      
Revenue 168.5 172.3 158.6
Operating Segments | Liberty Costa Rica | Subscription revenue      
Principal Transaction Revenue [Line Items]      
Revenue 128.3 137.1 144.3
Operating Segments | Liberty Costa Rica | Non-subscription revenue      
Principal Transaction Revenue [Line Items]      
Revenue 40.2 35.2 14.3
Operating Segments | Liberty Costa Rica | Total residential mobile revenue      
Principal Transaction Revenue [Line Items]      
Revenue 394.8 364.9 322.3
Operating Segments | Liberty Costa Rica | Service revenue      
Principal Transaction Revenue [Line Items]      
Revenue 295.0 276.0 242.1
Operating Segments | Liberty Costa Rica | Interconnect, inbound roaming ,equipment sales and other      
Principal Transaction Revenue [Line Items]      
Revenue 99.8 88.9 80.2
Operating Segments | Liberty Costa Rica | B2B revenue      
Principal Transaction Revenue [Line Items]      
Revenue 68.9 75.9 67.0
Operating Segments | Liberty Costa Rica | Other revenue      
Principal Transaction Revenue [Line Items]      
Revenue 0.0 0.0 0.0
Corporate      
Principal Transaction Revenue [Line Items]      
Revenue 14.9 19.6 23.5
Corporate | Total residential revenue      
Principal Transaction Revenue [Line Items]      
Revenue 12.8 18.6 22.3
Corporate | Total residential fixed revenue      
Principal Transaction Revenue [Line Items]      
Revenue 0.0 0.0 0.0
Corporate | Subscription revenue      
Principal Transaction Revenue [Line Items]      
Revenue 0.0 0.0 0.0
Corporate | Non-subscription revenue      
Principal Transaction Revenue [Line Items]      
Revenue 0.0 0.0 0.0
Corporate | Total residential mobile revenue      
Principal Transaction Revenue [Line Items]      
Revenue 12.8 18.6 22.3
Corporate | Service revenue      
Principal Transaction Revenue [Line Items]      
Revenue 0.0 0.0 0.0
Corporate | Interconnect, inbound roaming ,equipment sales and other      
Principal Transaction Revenue [Line Items]      
Revenue 12.8 18.6 22.3
Corporate | B2B revenue      
Principal Transaction Revenue [Line Items]      
Revenue 2.1 1.0 1.2
Corporate | Other revenue      
Principal Transaction Revenue [Line Items]      
Revenue 0.0 0.0 0.0
Intersegment Eliminations      
Principal Transaction Revenue [Line Items]      
Revenue (113.6) (109.8) (110.9)
Intersegment Eliminations | Total residential revenue      
Principal Transaction Revenue [Line Items]      
Revenue 0.0 0.0 (2.1)
Intersegment Eliminations | Total residential fixed revenue      
Principal Transaction Revenue [Line Items]      
Revenue 0.0 0.0 (2.1)
Intersegment Eliminations | Subscription revenue      
Principal Transaction Revenue [Line Items]      
Revenue 0.0 0.0 0.0
Intersegment Eliminations | Non-subscription revenue      
Principal Transaction Revenue [Line Items]      
Revenue 0.0 0.0 (2.1)
Intersegment Eliminations | Total residential mobile revenue      
Principal Transaction Revenue [Line Items]      
Revenue 0.0 0.0 0.0
Intersegment Eliminations | Service revenue      
Principal Transaction Revenue [Line Items]      
Revenue 0.0 0.0 0.0
Intersegment Eliminations | Interconnect, inbound roaming ,equipment sales and other      
Principal Transaction Revenue [Line Items]      
Revenue 0.0 0.0 0.0
Intersegment Eliminations | B2B revenue      
Principal Transaction Revenue [Line Items]      
Revenue (113.6) (109.8) (108.8)
Intersegment Eliminations | Other revenue      
Principal Transaction Revenue [Line Items]      
Revenue $ 0.0 $ 0.0 $ 0.0