Segment Reporting - Revenue by Major Category (Details) - USD ($) $ in Millions | 3 Months Ended |
Mar. 31, 2020 | Mar. 31, 2019 |
Principal Transaction Revenue [Line Items] | | |
Revenue | $ 931 | $ 942.7 |
Total residential revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 629.2 | 654.2 |
Total residential fixed revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 464.1 | 481.1 |
Total subscription revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 436.6 | 451.9 |
Video | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 175.2 | 187.6 |
Broadband internet | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 210.9 | 206.8 |
Fixed-line telephony | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 50.5 | 57.5 |
Non-subscription revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 27.5 | 29.2 |
Total residential mobile revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 165.1 | 173.1 |
Service revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 145.5 | 150.7 |
Interconnect, equipment sales and other | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 19.6 | 22.4 |
Total B2B revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 301.8 | 288.5 |
Service revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 234.2 | 228.6 |
Subsea network revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 67.6 | 59.9 |
Mobile Handset | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 10 | 7 |
B2B Mobile Handset and Other Devices | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 3 | 4 |
Operating Segments | C&W | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 588.6 | 569.8 |
Operating Segments | C&W | Total residential revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 305.6 | 297.4 |
Operating Segments | C&W | Total residential fixed revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 157.1 | 143.4 |
Operating Segments | C&W | Total subscription revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 140.2 | 128.4 |
Operating Segments | C&W | Video | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 44.9 | 43.9 |
Operating Segments | C&W | Broadband internet | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 71 | 60.2 |
Operating Segments | C&W | Fixed-line telephony | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 24.3 | 24.3 |
Operating Segments | C&W | Non-subscription revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 16.9 | 15 |
Operating Segments | C&W | Total residential mobile revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 148.5 | 154 |
Operating Segments | C&W | Service revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 130.9 | 135 |
Operating Segments | C&W | Interconnect, equipment sales and other | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 17.6 | 19 |
Operating Segments | C&W | Total B2B revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 283 | 272.4 |
Operating Segments | C&W | Service revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 213.4 | 210.9 |
Operating Segments | C&W | Subsea network revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 69.6 | 61.5 |
Operating Segments | VTR/Cabletica | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 240.1 | 276.5 |
Operating Segments | VTR/Cabletica | Total residential revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 232.3 | 269 |
Operating Segments | VTR/Cabletica | Total residential fixed revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 215.7 | 249.9 |
Operating Segments | VTR/Cabletica | Total subscription revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 209.7 | 241 |
Operating Segments | VTR/Cabletica | Video | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 95 | 108.7 |
Operating Segments | VTR/Cabletica | Broadband internet | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 94.4 | 104.8 |
Operating Segments | VTR/Cabletica | Fixed-line telephony | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 20.3 | 27.5 |
Operating Segments | VTR/Cabletica | Non-subscription revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 6 | 8.9 |
Operating Segments | VTR/Cabletica | Total residential mobile revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 16.6 | 19.1 |
Operating Segments | VTR/Cabletica | Service revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 14.6 | 15.7 |
Operating Segments | VTR/Cabletica | Interconnect, equipment sales and other | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 2 | 3.4 |
Operating Segments | VTR/Cabletica | Total B2B revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 7.8 | 7.5 |
Operating Segments | VTR/Cabletica | Service revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 7.8 | 7.5 |
Operating Segments | VTR/Cabletica | Subsea network revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 0 | 0 |
Operating Segments | Liberty Puerto Rico | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 104.6 | 98.6 |
Operating Segments | Liberty Puerto Rico | Total residential revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 91.3 | 87.8 |
Operating Segments | Liberty Puerto Rico | Total residential fixed revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 91.3 | 87.8 |
Operating Segments | Liberty Puerto Rico | Total subscription revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 86.7 | 82.5 |
Operating Segments | Liberty Puerto Rico | Video | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 35.3 | 35 |
Operating Segments | Liberty Puerto Rico | Broadband internet | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 45.5 | 41.8 |
Operating Segments | Liberty Puerto Rico | Fixed-line telephony | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 5.9 | 5.7 |
Operating Segments | Liberty Puerto Rico | Non-subscription revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 4.6 | 5.3 |
Operating Segments | Liberty Puerto Rico | Total residential mobile revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 0 | 0 |
Operating Segments | Liberty Puerto Rico | Service revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 0 | 0 |
Operating Segments | Liberty Puerto Rico | Interconnect, equipment sales and other | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 0 | 0 |
Operating Segments | Liberty Puerto Rico | Total B2B revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 13.3 | 10.8 |
Operating Segments | Liberty Puerto Rico | Service revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 13.3 | 10.8 |
Operating Segments | Liberty Puerto Rico | Subsea network revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 0 | 0 |
Intersegment eliminations | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | (2.3) | (2.2) |
Intersegment eliminations | Total residential revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 0 | 0 |
Intersegment eliminations | Total residential fixed revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 0 | 0 |
Intersegment eliminations | Total subscription revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 0 | 0 |
Intersegment eliminations | Video | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 0 | 0 |
Intersegment eliminations | Broadband internet | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 0 | 0 |
Intersegment eliminations | Fixed-line telephony | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 0 | 0 |
Intersegment eliminations | Non-subscription revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 0 | 0 |
Intersegment eliminations | Total residential mobile revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 0 | 0 |
Intersegment eliminations | Service revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 0 | 0 |
Intersegment eliminations | Interconnect, equipment sales and other | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | 0 | 0 |
Intersegment eliminations | Total B2B revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | (2.3) | (2.2) |
Intersegment eliminations | Service revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | (0.3) | (0.6) |
Intersegment eliminations | Subsea network revenue | | |
Principal Transaction Revenue [Line Items] | | |
Revenue | $ (2) | $ (1.6) |