Derivative Instruments (Interest Rate Swap Contracts and Options) (Details) - Interest Rate Swap $ in Millions	3 Months Ended
	Mar. 31, 2023 USD ($)
Pays fixed rate | UPC Holding
Derivative [Line Items]
Notional amount	$ 3,372.6
Weighted average remaining life	3 years 3 months 18 days
Pays fixed rate | Telenet
Derivative [Line Items]
Notional amount	$ 3,080.1
Weighted average remaining life	2 years 2 months 12 days
Receives fixed rate | UPC Holding
Derivative [Line Items]
Notional amount	$ 3,266.6
Weighted average remaining life	3 years 4 months 24 days
Receives fixed rate | Telenet
Derivative [Line Items]
Notional amount	$ 1,415.2
Weighted average remaining life	7 months 6 days