Segment Reporting - Revenue by Major Category (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | $ 1,089.2 | $ 1,125.8 | $ 3,306.6 | $ 3,347.5 |
Total residential revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 734.1 | 751.6 | 2,211.7 | 2,249.4 |
Total residential fixed revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 321.3 | 326 | 981.9 | 970.2 |
Subscription revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 300.8 | 308.2 | 917.2 | 918.1 |
Non-subscription revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 20.5 | 17.8 | 64.7 | 52.1 |
Total residential mobile revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 412.8 | 425.6 | 1,229.8 | 1,279.2 |
Service revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 312.3 | 309.9 | 922.3 | 923.1 |
Interconnect, inbound roaming, equipment sales and other | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 100.5 | 115.7 | 307.5 | 356.1 |
B2B revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 348.9 | 366.1 | 1,073.3 | 1,066.7 |
Other revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 6.2 | 8.1 | 21.6 | 31.4 |
Mobile Handset | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 47 | 60 | 146 | |
B2B Mobile Handset and Other Devices | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 6 | 5 | 18 | 21 |
Mobile Service Revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | | | | 186 |
Liberty Networks | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | | | | 65 |
Liberty Networks, Other | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | (22) | 23 | 67 | |
Operating Segments | Total residential revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 247.9 | 286.3 | 759.7 | |
Operating Segments | C&W Caribbean | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 359.5 | 360.5 | 1,092 | 1,070.6 |
Operating Segments | C&W Caribbean | Total residential revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 234.1 | 231.4 | 704.5 | 688.1 |
Operating Segments | C&W Caribbean | Total residential fixed revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 124.9 | 129.1 | 385.2 | 385.1 |
Operating Segments | C&W Caribbean | Subscription revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 119.1 | 122.6 | 364.7 | 363.9 |
Operating Segments | C&W Caribbean | Non-subscription revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 5.8 | 6.5 | 20.5 | 21.2 |
Operating Segments | C&W Caribbean | Total residential mobile revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 109.2 | 102.3 | 319.3 | 303 |
Operating Segments | C&W Caribbean | Service revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 91.1 | 83.9 | 262.9 | 245.3 |
Operating Segments | C&W Caribbean | Interconnect, inbound roaming, equipment sales and other | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 18.1 | 18.4 | 56.4 | 57.7 |
Operating Segments | C&W Caribbean | B2B revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 125.4 | 129.1 | 387.5 | 382.5 |
Operating Segments | C&W Caribbean | Other revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | 0 | 0 | 0 |
Operating Segments | C&W Panama | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 188 | 190.4 | 554.4 | 536.5 |
Operating Segments | C&W Panama | Total residential revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 118.9 | 110.6 | 338.5 | 328.1 |
Operating Segments | C&W Panama | Total residential fixed revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 32.4 | 31 | 95.3 | 90.8 |
Operating Segments | C&W Panama | Subscription revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 31.2 | 29.6 | 91.7 | 86.6 |
Operating Segments | C&W Panama | Non-subscription revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 1.2 | 1.4 | 3.6 | 4.2 |
Operating Segments | C&W Panama | Total residential mobile revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 86.5 | 79.6 | 243.2 | 237.3 |
Operating Segments | C&W Panama | Service revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 70.5 | 66 | 200.2 | 196.8 |
Operating Segments | C&W Panama | Interconnect, inbound roaming, equipment sales and other | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 16 | 13.6 | 43 | 40.5 |
Operating Segments | C&W Panama | B2B revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 69.1 | 79.8 | 215.9 | 208.4 |
Operating Segments | C&W Panama | Other revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | 0 | 0 | 0 |
Operating Segments | Liberty Networks | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 109.9 | 112.5 | 337.5 | 339.8 |
Operating Segments | Liberty Networks | Total residential revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | 0 | 0 | 0 |
Operating Segments | Liberty Networks | Total residential fixed revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | 0 | 0 | 0 |
Operating Segments | Liberty Networks | Subscription revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | 0 | 0 | 0 |
Operating Segments | Liberty Networks | Non-subscription revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | 0 | 0 | 0 |
Operating Segments | Liberty Networks | Total residential mobile revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | 0 | 0 | 0 |
Operating Segments | Liberty Networks | Service revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 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 |
Operating Segments | Liberty Networks | B2B revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 109.9 | 112.5 | 337.5 | 339.8 |
Operating Segments | Liberty Networks | Other revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | 0 | 0 | 0 |
Operating Segments | Liberty Puerto Rico | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 308.2 | 351.2 | 944 | 1,064.2 |
Operating Segments | Liberty Puerto Rico | Total residential revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | | | | 864.1 |
Operating Segments | Liberty Puerto Rico | Total residential fixed revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 122.9 | 128.2 | 374.1 | 378 |
Operating Segments | Liberty Puerto Rico | Subscription revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 117 | 120.5 | 357.2 | 358.6 |
Operating Segments | Liberty Puerto Rico | Non-subscription revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 5.9 | 7.7 | 16.9 | 19.4 |
Operating Segments | Liberty Puerto Rico | Total residential mobile revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 125 | 158.1 | 385.6 | 486.1 |
Operating Segments | Liberty Puerto Rico | Service revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 82.7 | 99.3 | 254.9 | 302.2 |
Operating Segments | Liberty Puerto Rico | Interconnect, inbound roaming, equipment sales and other | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 42.3 | 58.8 | 130.7 | 183.9 |
Operating Segments | Liberty Puerto Rico | B2B revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 54.1 | 56.8 | 162.7 | 168.7 |
Operating Segments | Liberty Puerto Rico | Other revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 6.2 | 8.1 | 21.6 | 31.4 |
Operating Segments | Liberty Costa Rica | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 145.5 | 134.6 | 445 | 399 |
Operating Segments | Liberty Costa Rica | Total residential revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 128.9 | 119.5 | 395.6 | 353.3 |
Operating Segments | Liberty Costa Rica | Total residential fixed revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 41.1 | 39.5 | 128.8 | 118.1 |
Operating Segments | Liberty Costa Rica | Subscription revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 33.5 | 35.5 | 103.6 | 109 |
Operating Segments | Liberty Costa Rica | Non-subscription revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 7.6 | 4 | 25.2 | 9.1 |
Operating Segments | Liberty Costa Rica | Total residential mobile revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 87.8 | 80 | 266.8 | 235.2 |
Operating Segments | Liberty Costa Rica | Service revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 68 | 60.7 | 204.3 | 178.8 |
Operating Segments | Liberty Costa Rica | Interconnect, inbound roaming, equipment sales and other | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 19.8 | 19.3 | 62.5 | 56.4 |
Operating Segments | Liberty Costa Rica | B2B revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 16.6 | 15.1 | 49.4 | 45.7 |
Operating Segments | Liberty Costa Rica | Other revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | 0 | 0 | 0 |
Corporate | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 4.5 | 6.5 | 15.5 | 18.5 |
Corporate | Total residential revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 4.3 | 5.6 | 14.9 | 17.6 |
Corporate | Total residential fixed revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | 0 | 0 | 0 |
Corporate | Subscription revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | 0 | 0 | 0 |
Corporate | Non-subscription revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | 0 | 0 | 0 |
Corporate | Total residential mobile revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 4.3 | 5.6 | 14.9 | 17.6 |
Corporate | Service revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | 0 | 0 | 0 |
Corporate | Interconnect, inbound roaming, equipment sales and other | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 4.3 | 5.6 | 14.9 | 17.6 |
Corporate | B2B revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0.2 | 0.9 | 0.6 | 0.9 |
Corporate | Other revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | 0 | 0 | 0 |
Intersegment Eliminations | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | (26.4) | (29.9) | (81.8) | (81.1) |
Intersegment Eliminations | Total residential revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | (1.8) | (1.5) | (1.8) |
Intersegment Eliminations | Total residential fixed revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | (1.8) | (1.5) | (1.8) |
Intersegment Eliminations | Subscription revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | 0 | 0 | 0 |
Intersegment Eliminations | Non-subscription revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | (1.8) | (1.5) | (1.8) |
Intersegment Eliminations | Total residential mobile revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | 0 | 0 | 0 |
Intersegment Eliminations | Service revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | 0 | 0 | 0 |
Intersegment Eliminations | Interconnect, inbound roaming, equipment sales and other | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | 0 | 0 | 0 |
Intersegment Eliminations | B2B revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | (26.4) | (28.1) | (80.3) | (79.3) |
Intersegment Eliminations | Other revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | $ 0 | $ 0 | $ 0 | $ 0 |