Debt and Other Financing Arrangements - Schedule of Debt (Parenthetical) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Jun. 30, 2023	Dec. 31, 2021
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage		7.25%		7.25%
7.25% Notes due 2023 [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	7.25%	7.25%	7.25%
7.25% Notes due 2023 [Member] | Merger Agreement [Member]
Debt Instrument [Line Items]
Unamortized fair value adjustments		$ 0.5
Various Cincinnati Bell Telephone Notes [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	6.30%
Various Cincinnati Bell Telephone Notes [Member] | Merger Agreement [Member]
Debt Instrument [Line Items]
Unamortized fair value adjustments	$ 7.2	$ 8.5