Debt (Vendor Financing Obligations) (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
2024	$ 794.6
2025	352.9
Total vendor financing maturities	15,857.6	$ 13,370.2
Current portion	794.6
Long-term portion	14,913.3
Sunrise Holding
Debt Instrument [Line Items]
2024	374.6
2025	0.0
Current portion	374.6
Long-term portion	6,095.9
Telenet
Debt Instrument [Line Items]
2024	404.4
2025	23.3
Current portion	404.4
Long-term portion	6,527.8
Other
Debt Instrument [Line Items]
2024	15.6
2025	329.6
Current portion	15.6
Long-term portion	1,299.1
Vendor financing
Debt Instrument [Line Items]
2024	767.5
2025	1.2
Total vendor financing maturities	768.7	$ 704.7	$ 843.2
Current portion	767.5
Long-term portion	1.2
Vendor financing | Sunrise Holding
Debt Instrument [Line Items]
2024	374.6
2025	0.0
Total vendor financing maturities	374.6
Current portion	374.6
Long-term portion	0.0
Vendor financing | Telenet
Debt Instrument [Line Items]
2024	377.3
2025	0.0
Total vendor financing maturities	377.3
Current portion	377.3
Long-term portion	0.0
Vendor financing | Other
Debt Instrument [Line Items]
2024	15.6
2025	1.2
Total vendor financing maturities	16.8
Current portion	15.6
Long-term portion	$ 1.2