Segment Reporting - Revenue by Major Category (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | $ 1,192 | $ 887.5 | $ 3,519.9 | $ 2,667.4 |
Total residential revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 854.2 | 610.1 | 2,518.5 | 1,826.7 |
Total residential fixed revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 476.8 | 462.8 | 1,452.4 | 1,376.2 |
Total subscription revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 453.7 | 440.1 | 1,382.5 | 1,305.5 |
Video | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 169.5 | 169.8 | 521.6 | 511.9 |
Broadband internet | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 235.7 | 222.2 | 714.1 | 646.1 |
Fixed-line telephony | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 48.5 | 48.1 | 146.8 | 147.5 |
Non-subscription revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 23.1 | 22.7 | 69.9 | 70.7 |
Total residential mobile revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 377.4 | 147.3 | 1,066.1 | 450.5 |
Service revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 268.1 | 124.5 | 751.9 | 380.3 |
Interconnect, inbound roaming, equipment sales and other | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 109.3 | 22.8 | 314.2 | 70.2 |
Total B2B revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 330.4 | 277.4 | 977 | 840.7 |
Service revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 271.7 | 219.1 | 796.6 | 657.1 |
Subsea network revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 58.7 | 58.3 | 180.4 | 183.6 |
Other revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 7.4 | | 24.4 | |
Mobile Service Revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 24 | 3 | 74 | 23 |
Mobile Handset | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 60 | 7 | 173 | 12 |
B2B Mobile Handset and Other Devices | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 5 | 2 | 12 | 8 |
Operating Segments | Total residential revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | | | 901.3 | |
Operating Segments | C&W Caribbean and Networks | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 434.5 | 421.7 | 1,298.5 | 1,278.6 |
Operating Segments | C&W Caribbean and Networks | Total residential revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 217.6 | 208.5 | 647.5 | 633.1 |
Operating Segments | C&W Caribbean and Networks | Total residential fixed revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 128.7 | 126.2 | 386.4 | 381.8 |
Operating Segments | C&W Caribbean and Networks | Total subscription revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 118.1 | 115.7 | 353.7 | 349.5 |
Operating Segments | C&W Caribbean and Networks | Video | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 32.6 | 34.7 | 100.3 | 107.5 |
Operating Segments | C&W Caribbean and Networks | Broadband internet | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 68.9 | 62.7 | 203.2 | 185.1 |
Operating Segments | C&W Caribbean and Networks | Fixed-line telephony | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 16.6 | 18.3 | 50.2 | 56.9 |
Operating Segments | C&W Caribbean and Networks | Non-subscription revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 10.6 | 10.5 | 32.7 | 32.3 |
Operating Segments | C&W Caribbean and Networks | Total residential mobile revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 88.9 | 82.3 | 261.1 | 251.3 |
Operating Segments | C&W Caribbean and Networks | Service revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 76.1 | 71.6 | 222.9 | 218 |
Operating Segments | C&W Caribbean and Networks | Interconnect, inbound roaming, equipment sales and other | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 12.8 | 10.7 | 38.2 | 33.3 |
Operating Segments | C&W Caribbean and Networks | Total B2B revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 216.9 | 213.2 | 651 | 645.5 |
Operating Segments | C&W Caribbean and Networks | Service revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 153.8 | 151.2 | 457.4 | 451.4 |
Operating Segments | C&W Caribbean and Networks | Subsea network revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 63.1 | 62 | 193.6 | 194.1 |
Operating Segments | C&W Caribbean and Networks | Other revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | | 0 | |
Operating Segments | C&W Panama | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 128.9 | 118.9 | 379 | 369.4 |
Operating Segments | C&W Panama | Total residential revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 74.8 | 71.7 | 222.4 | 224.1 |
Operating Segments | C&W Panama | Total residential fixed revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 24.6 | 22.5 | 71.9 | 72.7 |
Operating Segments | C&W Panama | Total subscription revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 22.3 | 19.9 | 64.7 | 63.7 |
Operating Segments | C&W Panama | Video | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 6.5 | 6.1 | 18.9 | 20.9 |
Operating Segments | C&W Panama | Broadband internet | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 11.5 | 9.5 | 33 | 28.6 |
Operating Segments | C&W Panama | Fixed-line telephony | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 4.3 | 4.3 | 12.8 | 14.2 |
Operating Segments | C&W Panama | Non-subscription revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 2.3 | 2.6 | 7.2 | 9 |
Operating Segments | C&W Panama | Total residential mobile revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 50.2 | 49.2 | 150.5 | 151.4 |
Operating Segments | C&W Panama | Service revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 38.6 | 39.1 | 117.3 | 120.1 |
Operating Segments | C&W Panama | Interconnect, inbound roaming, equipment sales and other | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 11.6 | 10.1 | 33.2 | 31.3 |
Operating Segments | C&W Panama | Total B2B revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 54.1 | 47.2 | 156.6 | 145.3 |
Operating Segments | C&W Panama | Service revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 54.1 | 47.2 | 156.6 | 145.3 |
Operating Segments | C&W Panama | Subsea network revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | 0 | 0 | 0 |
Operating Segments | C&W Panama | Other revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | | 0 | |
Operating Segments | Liberty Puerto Rico | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 359 | 114.4 | 1,080.7 | 328.1 |
Operating Segments | Liberty Puerto Rico | Total residential revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 300.6 | 100.3 | | 287.5 |
Operating Segments | Liberty Puerto Rico | Total residential fixed revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 115.6 | 100.3 | 341.2 | 287.5 |
Operating Segments | Liberty Puerto Rico | Total subscription revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 110.6 | 96.1 | 327.1 | 274.9 |
Operating Segments | Liberty Puerto Rico | Video | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 39.4 | 37.1 | 117.2 | 109.1 |
Operating Segments | Liberty Puerto Rico | Broadband internet | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 64.1 | 52.5 | 188.7 | 147.2 |
Operating Segments | Liberty Puerto Rico | Fixed-line telephony | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 7.1 | 6.5 | 21.2 | 18.6 |
Operating Segments | Liberty Puerto Rico | Non-subscription revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 5 | 4.2 | 14.1 | 12.6 |
Operating Segments | Liberty Puerto Rico | Total residential mobile revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 185 | 0 | 560.1 | 0 |
Operating Segments | Liberty Puerto Rico | Service revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 114.2 | 0 | 346.3 | 0 |
Operating Segments | Liberty Puerto Rico | Interconnect, inbound roaming, equipment sales and other | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 70.8 | 0 | 213.8 | 0 |
Operating Segments | Liberty Puerto Rico | Total B2B revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 51 | 14.1 | 155 | 40.6 |
Operating Segments | Liberty Puerto Rico | Service revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 51 | 14.1 | 155 | 40.6 |
Operating Segments | Liberty Puerto Rico | Subsea network revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | 0 | 0 | 0 |
Operating Segments | Liberty Puerto Rico | Other revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 7.4 | | 24.4 | |
Operating Segments | VTR | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 193.1 | 201.8 | 612.7 | 601.3 |
Operating Segments | VTR | Total residential revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 184.8 | 194.5 | 587.6 | 578.6 |
Operating Segments | VTR | Total residential fixed revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 171.6 | 178.7 | 544.1 | 530.8 |
Operating Segments | VTR | Total subscription revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 167.8 | 174.7 | 532.9 | 517.2 |
Operating Segments | VTR | Video | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 72.6 | 72.2 | 228.3 | 214.8 |
Operating Segments | VTR | Broadband internet | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 75.8 | 84.5 | 245.3 | 247.2 |
Operating Segments | VTR | Fixed-line telephony | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 19.4 | 18 | 59.3 | 55.2 |
Operating Segments | VTR | Non-subscription revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 3.8 | 4 | 11.2 | 13.6 |
Operating Segments | VTR | Total residential mobile revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 13.2 | 15.8 | 43.5 | 47.8 |
Operating Segments | VTR | Service revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 11.5 | 13.8 | 37.7 | 42.2 |
Operating Segments | VTR | Interconnect, inbound roaming, equipment sales and other | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 1.7 | 2 | 5.8 | 5.6 |
Operating Segments | VTR | Total B2B revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 8.3 | 7.3 | 25.1 | 22.7 |
Operating Segments | VTR | Service revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 8.3 | 7.3 | 25.1 | 22.7 |
Operating Segments | VTR | Subsea network revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | 0 | 0 | 0 |
Operating Segments | VTR | Other revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | | 0 | |
Operating Segments | Costa Rica | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 76.9 | 35.1 | 149.4 | 103.4 |
Operating Segments | Costa Rica | Total residential revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 71 | 35.1 | 143.5 | 103.4 |
Operating Segments | Costa Rica | Total residential fixed revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 36.4 | 35.1 | 108.9 | 103.4 |
Operating Segments | Costa Rica | Total subscription revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 34.9 | 33.7 | 104.1 | 100.2 |
Operating Segments | Costa Rica | Video | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 18.4 | 19.7 | 56.9 | 59.6 |
Operating Segments | Costa Rica | Broadband internet | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 15.4 | 13 | 43.9 | 38 |
Operating Segments | Costa Rica | Fixed-line telephony | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 1.1 | 1 | 3.3 | 2.6 |
Operating Segments | Costa Rica | Non-subscription revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 1.5 | 1.4 | 4.8 | 3.2 |
Operating Segments | Costa Rica | Total residential mobile revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 34.6 | 0 | 34.6 | 0 |
Operating Segments | Costa Rica | Service revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 27.6 | 0 | 27.6 | 0 |
Operating Segments | Costa Rica | Interconnect, inbound roaming, equipment sales and other | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 7 | 0 | 7 | 0 |
Operating Segments | Costa Rica | Total B2B revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 5.9 | 0 | 5.9 | 0 |
Operating Segments | Costa Rica | Service revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 5.9 | 0 | 5.9 | 0 |
Operating Segments | Costa Rica | Subsea network revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | 0 | 0 | 0 |
Operating Segments | Costa Rica | Other revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | | 0 | |
Corporate | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 5.4 | 0 | 16.2 | 0 |
Corporate | Total residential revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 5.4 | | 16.2 | |
Corporate | Total residential fixed revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | | 0 | |
Corporate | Total subscription revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | | 0 | |
Corporate | Video | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | | 0 | |
Corporate | Broadband internet | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | | 0 | |
Corporate | Fixed-line telephony | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | | 0 | |
Corporate | Non-subscription revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | | 0 | |
Corporate | Total residential mobile revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 5.4 | | 16.2 | |
Corporate | Service revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | | 0 | |
Corporate | Interconnect, inbound roaming, equipment sales and other | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 5.4 | | 16.2 | |
Corporate | Total B2B revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | | 0 | |
Corporate | Service revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | | 0 | |
Corporate | Subsea network revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | | 0 | |
Corporate | Other revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | | 0 | |
Intersegment Eliminations | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | (5.8) | (4.4) | (16.6) | (13.4) |
Intersegment Eliminations | Total residential revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | 0 | 0 | 0 |
Intersegment Eliminations | Total residential fixed revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | (0.1) | 0 | (0.1) | 0 |
Intersegment Eliminations | Total subscription revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | 0 | 0 | 0 |
Intersegment Eliminations | Video | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | 0 | 0 | 0 |
Intersegment Eliminations | Broadband internet | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | 0 | 0 | 0 |
Intersegment Eliminations | Fixed-line telephony | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | 0 | 0 | 0 |
Intersegment Eliminations | Non-subscription revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | (0.1) | 0 | (0.1) | 0 |
Intersegment Eliminations | Total residential mobile revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0.1 | 0 | 0.1 | 0 |
Intersegment Eliminations | Service revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0.1 | 0 | 0.1 | 0 |
Intersegment Eliminations | Interconnect, inbound roaming, equipment sales and other | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | 0 | 0 | 0 | 0 |
Intersegment Eliminations | Total B2B revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | (5.8) | (4.4) | (16.6) | (13.4) |
Intersegment Eliminations | Service revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | (1.4) | (0.7) | (3.4) | (2.9) |
Intersegment Eliminations | Subsea network revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | (4.4) | $ (3.7) | (13.2) | $ (10.5) |
Intersegment Eliminations | Other revenue | | | | |
Principal Transaction Revenue [Line Items] | | | | |
Revenue | $ 0 | | $ 0 | |