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Debt (Vendor Financing Obligations) (Schedule) (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
2023 (remainder of year)	$ 564.0
2024	141.1
2025	360.1
Total vendor financing maturities	14,758.7	$ 13,370.2
Current portion	669.5
Long-term portion	13,927.4
UPC Holding
Debt Instrument [Line Items]
2023 (remainder of year)	210.6
2024	54.3
2025	0.0
Current portion	264.9
Long-term portion	6,057.4
Telenet
Debt Instrument [Line Items]
2023 (remainder of year)	328.8
2024	71.4
2025	36.3
Current portion	375.3
Long-term portion	5,638.7
Other
Debt Instrument [Line Items]
2023 (remainder of year)	24.6
2024	15.4
2025	323.8
Current portion	29.3
Long-term portion	1,258.9
Vendor financing
Debt Instrument [Line Items]
2023 (remainder of year)	544.3
2024	109.8
2025	1.2
Total vendor financing maturities	655.3	$ 704.7	$ 789.6	$ 843.2
Current portion	643.4
Long-term portion	11.9
Vendor financing \| UPC Holding
Debt Instrument [Line Items]
2023 (remainder of year)	210.6
2024	54.3
2025	0.0
Total vendor financing maturities	264.9
Current portion	264.9
Long-term portion	0.0
Vendor financing \| Telenet
Debt Instrument [Line Items]
2023 (remainder of year)	309.1
2024	40.1
2025	0.0
Total vendor financing maturities	349.2
Current portion	349.2
Long-term portion	0.0
Vendor financing \| Other
Debt Instrument [Line Items]
2023 (remainder of year)	24.6
2024	15.4
2025	1.2
Total vendor financing maturities	41.2
Current portion	29.3
Long-term portion	$ 11.9