v3.25.2
Segment Reporting (Reconciliation of Operating Cash Flow to Earnings from Continuing Operations) (Schedule) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Segment Reporting Information [Line Items]        
Share-based compensation expense $ (49.4) $ (43.4) $ (82.8) $ (82.4)
Depreciation and amortization (250.8) (282.7) (483.0) (505.4)
Impairment, restructuring and other operating items, net (5.5) (4.5) (3.8) (38.1)
Operating income (loss) 29.6 (33.0) 90.3 (45.3)
Interest expense (129.5) (144.4) (257.0) (289.9)
Realized and unrealized gains (losses) on derivative instruments, net (406.0) 91.2 (570.7) 224.5
Foreign currency transaction gains (losses), net (2,089.9) 173.5 (3,170.9) 732.8
Realized and unrealized gains (losses) due to changes in fair values of certain investments, net 55.3 (29.8) 111.1 83.3
Losses on debt extinguishment, net (0.9) 0.0 (8.9) 0.0
Share of results of affiliates, net (note 5) (264.6) (24.6) (412.6) (31.6)
Gain on sale of All3Media (note 5) 0.0 242.9 0.0 242.9
Other income, net 33.1 76.5 52.5 112.9
Earnings (loss) from continuing operations before income taxes (2,772.9) 352.3 (4,166.2) 1,029.6
VMO2 JV And VodafoneZiggo JV        
Segment Reporting Information [Line Items]        
Adjusted EBITDA 1,669.0 1,651.1 3,205.5 3,243.7
Operating Segments        
Segment Reporting Information [Line Items]        
Adjusted EBITDA 2,048.3 2,008.7 3,923.6 3,949.7
Operating Segments | Telenet        
Segment Reporting Information [Line Items]        
Adjusted EBITDA 337.9 311.9 639.5 620.3
Operating Segments | VM Ireland        
Segment Reporting Information [Line Items]        
Adjusted EBITDA 41.4 45.7 78.6 85.7
Operating Segments | VMO2 JV        
Segment Reporting Information [Line Items]        
Adjusted EBITDA 1,172.3 1,132.4 2,245.7 2,206.0
Operating Segments | VodafoneZiggo JV        
Segment Reporting Information [Line Items]        
Adjusted EBITDA 496.7 518.7 959.8 1,037.7
Intersegment        
Segment Reporting Information [Line Items]        
Adjusted EBITDA (10.0) (35.1) (20.0) (69.8)
Central and Other        
Segment Reporting Information [Line Items]        
Adjusted EBITDA $ 34.0 $ 24.9 $ 38.2 $ 55.6