Debt (Vendor Financing Obligations) (Schedule) (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
2024 (remainder of year)	$ 613.7
2025	461.0
Total debt	15,602.5	$ 15,857.6
Current portion	728.9
Long-term portion	14,739.2
Sunrise Holding
Debt Instrument [Line Items]
2024 (remainder of year)	257.0
2025	67.8
Total debt	6,393.8
Current portion	324.8
Long-term portion	6,048.8
Telenet
Debt Instrument [Line Items]
2024 (remainder of year)	346.0
2025	71.6
Total debt	6,867.0
Current portion	392.9
Long-term portion	6,447.2
Other
Debt Instrument [Line Items]
2024 (remainder of year)	10.7
2025	321.6
Total debt	1,370.0
Current portion	11.2
Long-term portion	1,276.4
Vendor financing
Debt Instrument [Line Items]
2024 (remainder of year)	591.5
2025	116.5
Total debt	708.0	$ 768.7	$ 655.3	$ 704.7
Current portion	707.4
Long-term portion	0.6
Vendor financing | Sunrise Holding
Debt Instrument [Line Items]
2024 (remainder of year)	257.0
2025	67.8
Total debt	324.8
Current portion	324.8
Long-term portion	0.0
Vendor financing | Telenet
Debt Instrument [Line Items]
2024 (remainder of year)	323.8
2025	47.6
Total debt	371.4
Current portion	371.4
Long-term portion	0.0
Vendor financing | Other
Debt Instrument [Line Items]
2024 (remainder of year)	10.7
2025	1.1
Total debt	11.8
Current portion	11.2
Long-term portion	$ 0.6