Debt (Footnotes) (Details) € in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2022 EUR (€)	Sep. 30, 2022 USD ($)
Debt Instrument [Line Items]
Weighted average interest rate	5.50%		5.50%
Unused borrowing capacity	$ 1,465.6
Deferred license fees	428.1			$ 384.1
Long-term Debt
Debt Instrument [Line Items]
Debt	$ 12,600.0	$ 14,500.0
Aggregate Variable and Fixed Rate Indebtedness
Debt Instrument [Line Items]
Weighted average interest rate	3.21%		3.21%
UPC Revolving Facility One
Debt Instrument [Line Items]
Unused borrowing capacity	$ 764.1		€ 713.4
UPC Revolving Facility
Debt Instrument [Line Items]
Unused borrowing capacity	24.6		23.0
Telenet Revolving Credit Facility I
Debt Instrument [Line Items]
Unused borrowing capacity	546.2		510.0
Telenet Overdraft Facility
Debt Instrument [Line Items]
Unused borrowing capacity	26.8		25.0
Telenet Revolving Facility
Debt Instrument [Line Items]
Unused borrowing capacity	$ 21.4		€ 20.0
VM Ireland Credit Facility
Debt Instrument [Line Items]
Weighted average interest rate	6.19%		6.19%
Unused borrowing capacity	$ 107.1		€ 100.0
VM Ireland Credit Facility | UPC Revolving Facility
Debt Instrument [Line Items]
Unused borrowing capacity	107.1		100.0
Available to loan or distribute	95.4		89.1
VM Ireland Credit Facility | UPC Revolving Facility | Debt Covenant, Scenario 1
Debt Instrument [Line Items]
Unused borrowing capacity	107.1		100.0
Available to loan or distribute	$ 64.3		€ 60.0
Vendor financing
Debt Instrument [Line Items]
Weighted average interest rate	2.63%		2.63%
Operating-related vendor financing additions	$ 522.7	$ 1,781.6
UPC Holding Bank Facility
Debt Instrument [Line Items]
Weighted average interest rate	6.60%		6.60%
UPC Holding Bank Facility | UPC Revolving Facility
Debt Instrument [Line Items]
Unused borrowing capacity	$ 764.1		€ 713.4
Available to loan or distribute	325.5		303.9
UPC Holding Bank Facility | UPC Revolving Facility | Debt Covenant, Scenario 1
Debt Instrument [Line Items]
Unused borrowing capacity	764.1		713.4
Available to loan or distribute	$ 376.5		€ 351.5
Telenet Credit Facility
Debt Instrument [Line Items]
Weighted average interest rate	5.90%		5.90%
Telenet Credit Facility | UPC Revolving Facility
Debt Instrument [Line Items]
Unused borrowing capacity	$ 594.4		€ 555.0
Available to loan or distribute	594.4		555.0
Telenet Credit Facility | UPC Revolving Facility | Debt Covenant, Scenario 1
Debt Instrument [Line Items]
Unused borrowing capacity	594.4		555.0
Available to loan or distribute	$ 594.4		€ 555.0