0000716133 2020-03-09 2020-03-09 0000716133 cbb:DepositarySharesEachRepresenting120InterestInAShareOf634CumulativeConvertiblePreferredStockWithoutParValueMember 2020-03-09 2020-03-09 0000716133 cbb:CommonShares001ParValueMember 2020-03-09 2020-03-09 false 0000716133 8-K 2020-03-09 CINCINNATI BELL INC. OH 001-8519 31-1056105 221 East Fourth Street Cincinnati OH 45202 513 397-9900 false true false false Common Shares ($0.01 par value) CBB NYSE Depositary Shares, each representing 1/20 interest in a Share of 6 3/4% Cumulative Convertible Preferred Stock, without par value CBB.PB NYSE false