Derivative Instruments (Interest Rate Swap Contracts and Options) (Details) - Interest Rate Swap $ in Millions	3 Months Ended
Mar. 31, 2024 USD ($)
Pays fixed rate \| Sunrise Holding
Derivative [Line Items]
Notional amount	$ 3,419.4
Weighted average remaining life	2 years 3 months 18 days
Pays fixed rate \| Telenet
Derivative [Line Items]
Notional amount	$ 3,650.7
Weighted average remaining life	4 years 2 months 12 days
Pays fixed rate \| Other
Derivative [Line Items]
Notional amount	$ 0.0
Receives fixed rate \| Sunrise Holding
Derivative [Line Items]
Notional amount	$ 3,249.2
Weighted average remaining life	2 years 4 months 24 days
Receives fixed rate \| Telenet
Derivative [Line Items]
Notional amount	$ 291.5
Weighted average remaining life	9 months 18 days
Receives fixed rate \| Other
Derivative [Line Items]
Notional amount	$ 25.9
Weighted average remaining life	1 year 6 months

Average remaining period until maturity of the derivative contract, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480237/815-40-50-5

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- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-1B

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1A
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-1A

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- Details

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