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v3.21.1

Segment Reporting (Performance Measures) (Schedule) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Segment Reporting Information [Line Items] |  |
Revenue | $ 3,615.3 | $ 2,875.8
Adjusted EBITDA | 1,367.3 | 1,150.3
VodafoneZiggo JV |  |
Segment Reporting Information [Line Items] |  |
Adjusted EBITDA | 565.2 | 502.8
VodafoneZiggo JV | Equity Method Investment, Nonconsolidated Investee or Group of Investees |  |
Segment Reporting Information [Line Items] |  |
Revenue | 1,217.0 | 1,097.1
Operating Segments | U.K./Ireland |  |
Segment Reporting Information [Line Items] |  |
Revenue | 1,770.7 | 1,620.6
Adjusted EBITDA | 692.6 | 655.4
Operating Segments | Belgium |  |
Segment Reporting Information [Line Items] |  |
Revenue | 772.7 | 718.1
Adjusted EBITDA | 371.8 | 331.6
Operating Segments | Switzerland |  |
Segment Reporting Information [Line Items] |  |
Revenue | 841.8 | 316.8
Adjusted EBITDA | 281.6 | 134.1
Operating Segments | Central and Eastern Europe |  |
Segment Reporting Information [Line Items] |  |
Revenue | 128.6 | 119.1
Adjusted EBITDA | 57.0 | 54.3
Corporate, Non-Segment |  |
Segment Reporting Information [Line Items] |  |
Revenue | 102.7 | 101.2
Adjusted EBITDA | (35.7) | (25.1)
Intersegment eliminations |  |
Segment Reporting Information [Line Items] |  |
Revenue | $ (1.2) | $ 0.0

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