Supplemental Guarantor Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Condensed Consolidating Statements of Operations [Abstract]
Revenue	$ 368.2	$ 367.5	$ 731.0	$ 728.3
Operating costs and expenses	303.0	289.9	584.8	564.3
Operating income (loss)	65.2	77.6	146.2	164.0
Interest expense (income), net	53.7	53.4	108.1	107.9
Other expense (income), net	0	0	1.5	0
Income before income taxes	11.5	24.2	36.6	56.1
Income tax expense (benefit)	7.0	10.7	19.5	24.7
Net income	4.5	13.5	17.1	31.4
Other comprehensive income	2.7	5.4	4.1	6.6
Total comprehensive income	7.2	18.9	21.2	38.0
Preferred stock dividends	2.6	2.6	5.2	5.2
Net income applicable to common shareowners	1.9	10.9	11.9	26.2
Condensed Consolidating Balance Sheets [Abstract]
Cash and cash equivalents	4.1	90.1	4.1	90.1
Other current assets	8.0		8.0		2.7
Total current assets	278.6		278.6		321.0
Property, plant and equipment, net	1,471.5		1,471.5		1,400.5
Other noncurrent assets	59.6		59.6		62.2
Total assets	2,702.7		2,702.7		2,714.7
Current portion of long-term debt	13.5		13.5		13.0
Accounts payable	119.7		119.7		133.4
Other current liabilities	37.5		37.5		48.1
Total current liabilities	331.4		331.4		356.4
Long-term debt, less current portion	2,538.7		2,538.7		2,520.6
Other noncurrent liabilities	160.4		160.4		163.0
Total liabilities	3,398.9		3,398.9		3,429.9
Shareowners' equity (deficit)	(696.2)		(696.2)		(715.2)
Total liabilities and shareowners' deficit	2,702.7		2,702.7		2,714.7
Condensed Consolidating Statements of Cash Flows [Abstract]
Cash flows provided by (used in) operating activities			91.9	117.9
Capital expenditures			(167.4)	(92.5)
Other investing activities			0	(0.2)
Net cash used in investing activities			(167.4)	(92.7)
Borrowing on corporate credit and receivables facilities, net			19.0	0.4
Repayment of debt			(8.0)	(6.2)
Common stock repurchase			(0.3)	0
Other financing activities			0.4	(0.6)
Net cash provided by (used in) financing activities			5.9	(12.4)
Net increase (decrease) in cash and cash equivalents			(69.6)	12.8
Cash and cash equivalents at beginning of period			73.7	77.3
Cash and cash equivalents at end of period	4.1	90.1	4.1	90.1
Notes guaranteed by parent [Member]
Condensed Consolidating Statements of Operations [Abstract]
Revenue	368.2	367.5	731.0	728.3
Operating costs and expenses	303.0	289.9	584.8	564.3
Operating income (loss)	65.2	77.6	146.2	164.0
Interest expense (income), net	53.7	53.4	108.1	107.9
Other expense (income), net	0	0	1.5	0
Income before income taxes	11.5	24.2	36.6	56.1
Income tax expense (benefit)	7.0	10.7	19.5	24.7
Equity in earnings of subsidiaries net of tax	0	0	0	0
Net income	4.5	13.5	17.1	31.4
Other comprehensive income	2.7	5.4	4.1	6.6
Total comprehensive income	7.2	18.9	21.2	38.0
Preferred stock dividends	2.6	2.6	5.2	5.2
Net income applicable to common shareowners	1.9	10.9	11.9	26.2
Condensed Consolidating Balance Sheets [Abstract]
Cash and cash equivalents	4.1	90.1	4.1	90.1
Receivables, net	194.8		194.8		179.4
Other current assets	79.7		79.7		67.9
Total current assets	278.6		278.6		321.0
Property, plant and equipment, net	1,471.5		1,471.5		1,400.5
Goodwill and intangibles net	494.0		494.0		507.5
Investments in and advances to subsidiaries	0		0		0
Other noncurrent assets	458.6		458.6		485.7
Total assets	2,702.7		2,702.7		2,714.7
Current portion of long-term debt	13.5		13.5		13.0
Accounts payable	119.7		119.7		133.4
Other current liabilities	198.2		198.2		210.0
Total current liabilities	331.4		331.4		356.4
Long-term debt, less current portion	2,538.7		2,538.7		2,520.6
Other noncurrent liabilities	528.8		528.8		552.9
Intercompany payables	0		0		0
Total liabilities	3,398.9		3,398.9		3,429.9
Shareowners' equity (deficit)	(696.2)		(696.2)		(715.2)
Total liabilities and shareowners' deficit	2,702.7		2,702.7		2,714.7
Condensed Consolidating Statements of Cash Flows [Abstract]
Cash flows provided by (used in) operating activities			91.9	117.9
Capital expenditures			(167.4)	(92.5)
Other investing activities				(0.2)
Net cash used in investing activities			(167.4)	(92.7)
Funding between Parent and subsidiaries net			0	0
Borrowing on corporate credit and receivables facilities, net			19.0	0.4
Repayment of debt			(8.0)	(6.2)
Common stock repurchase			(0.3)
Other financing activities			(4.8)	(6.6)
Net cash provided by (used in) financing activities			5.9	(12.4)
Net increase (decrease) in cash and cash equivalents			(69.6)	12.8
Cash and cash equivalents at beginning of period			73.7	77.3
Cash and cash equivalents at end of period	4.1	90.1	4.1	90.1
Notes guaranteed by subsidiaries [Member]
Condensed Consolidating Statements of Operations [Abstract]
Revenue	368.2	367.5	731.0	728.3
Operating costs and expenses	303.0	289.9	584.8	564.3
Operating income (loss)	65.2	77.6	146.2	164.0
Interest expense (income), net	53.7	53.4	108.1	107.9
Other expense (income), net	0	0	1.5	0
Income before income taxes	11.5	24.2	36.6	56.1
Income tax expense (benefit)	7.0	10.7	19.5	24.7
Equity in earnings of subsidiaries net of tax	0	0	0	0
Net income	4.5	13.5	17.1	31.4
Other comprehensive income	2.7	5.4	4.1	6.6
Total comprehensive income	7.2	18.9	21.2	38.0
Preferred stock dividends	2.6	2.6	5.2	5.2
Net income applicable to common shareowners	1.9	10.9	11.9	26.2
Condensed Consolidating Balance Sheets [Abstract]
Cash and cash equivalents	4.1	90.1	4.1	90.1
Receivables, net	194.8		194.8		179.4
Other current assets	79.7		79.7		67.9
Total current assets	278.6		278.6		321.0
Property, plant and equipment, net	1,471.5		1,471.5		1,400.5
Goodwill and intangibles net	494.0		494.0		507.5
Investments in and advances to subsidiaries	0		0		0
Other noncurrent assets	458.6		458.6		485.7
Total assets	2,702.7		2,702.7		2,714.7
Current portion of long-term debt	13.5		13.5		13.0
Accounts payable	119.7		119.7		133.4
Other current liabilities	198.2		198.2		210.0
Total current liabilities	331.4		331.4		356.4
Long-term debt, less current portion	2,538.7		2,538.7		2,520.6
Other noncurrent liabilities	528.8		528.8		552.9
Intercompany payables	0		0		0
Total liabilities	3,398.9		3,398.9		3,429.9
Shareowners' equity (deficit)	(696.2)		(696.2)		(715.2)
Total liabilities and shareowners' deficit	2,702.7		2,702.7		2,714.7
Condensed Consolidating Statements of Cash Flows [Abstract]
Cash flows provided by (used in) operating activities			91.9	117.9
Capital expenditures			(167.4)	(92.5)
Other investing activities				(0.2)
Net cash used in investing activities			(167.4)	(92.7)
Funding between Parent and subsidiaries net			0	0
Borrowing on corporate credit and receivables facilities, net			19.0	0.4
Repayment of debt			(8.0)	(6.2)
Common stock repurchase			(0.3)
Other financing activities			(4.8)	(6.6)
Net cash provided by (used in) financing activities			5.9	(12.4)
Net increase (decrease) in cash and cash equivalents			(69.6)	12.8
Cash and cash equivalents at beginning of period			73.7	77.3
Cash and cash equivalents at end of period	4.1	90.1	4.1	90.1
Parent Company [Member] | Notes guaranteed by parent [Member]
Condensed Consolidating Statements of Operations [Abstract]
Revenue	0	1.4	0	2.9
Operating costs and expenses	4.0	8.0	11.1	15.1
Operating income (loss)	(4.0)	(6.6)	(11.1)	(12.2)
Interest expense (income), net	40.8	37.0	81.4	74.0
Other expense (income), net	(0.3)	(0.5)	(0.7)	(0.9)
Income before income taxes	(44.5)	(43.1)	(91.8)	(85.3)
Income tax expense (benefit)	(15.7)	(15.4)	(29.8)	(28.6)
Equity in earnings of subsidiaries net of tax	33.3	41.2	79.1	88.1
Net income	4.5	13.5	17.1	31.4
Other comprehensive income			4.1
Total comprehensive income	7.2	18.9	21.2	38.0
Preferred stock dividends	2.6	2.6	5.2	5.2
Net income applicable to common shareowners	1.9	10.9	11.9	26.2
Condensed Consolidating Balance Sheets [Abstract]
Cash and cash equivalents	0.4	86.2	0.4	86.2
Receivables, net	1.2		1.2		2.0
Other current assets	9.3		9.3		5.8
Total current assets	10.9		10.9		77.4
Property, plant and equipment, net	0.1		0.1		0.1
Goodwill and intangibles net	0		0		0
Investments in and advances to subsidiaries	1,864.2		1,864.2		1,731.4
Other noncurrent assets	382.9		382.9		387.9
Total assets	2,258.1		2,258.1		2,196.8
Current portion of long-term debt	0		0		0
Accounts payable	0.2		0.2		1.0
Other current liabilities	91.9		91.9		93.2
Total current liabilities	92.1		92.1		94.2
Long-term debt, less current portion	2,182.4		2,182.4		2,182.0
Other noncurrent liabilities	383.9		383.9		404.3
Intercompany payables	295.9		295.9		231.5
Total liabilities	2,954.3		2,954.3		2,912.0
Shareowners' equity (deficit)	(696.2)		(696.2)		(715.2)
Total liabilities and shareowners' deficit	2,258.1		2,258.1		2,196.8
Condensed Consolidating Statements of Cash Flows [Abstract]
Cash flows provided by (used in) operating activities			(75.0)	(69.9)
Capital expenditures			0	0
Other investing activities				(0.2)
Net cash used in investing activities			0	(0.2)
Funding between Parent and subsidiaries net			10.8	93.1
Repayment of debt			0	0
Common stock repurchase			(0.3)
Other financing activities			(4.7)	(6.6)
Net cash provided by (used in) financing activities			5.8	86.5
Net increase (decrease) in cash and cash equivalents			(69.2)	16.4
Cash and cash equivalents at beginning of period			69.6	69.8
Cash and cash equivalents at end of period	0.4	86.2	0.4	86.2
Parent Company [Member] | Notes guaranteed by subsidiaries [Member]
Condensed Consolidating Statements of Operations [Abstract]
Revenue	0	1.4	0	2.9
Operating costs and expenses	4.0	8.0	11.1	15.1
Operating income (loss)	(4.0)	(6.6)	(11.1)	(12.2)
Interest expense (income), net	40.8	37.0	81.4	74.0
Other expense (income), net	(0.3)	(0.5)	(0.7)	(0.9)
Income before income taxes	(44.5)	(43.1)	(91.8)	(85.3)
Income tax expense (benefit)	(15.7)	(15.4)	(29.8)	(28.6)
Equity in earnings of subsidiaries net of tax	33.3	41.2	79.1	88.1
Net income	4.5	13.5	17.1	31.4
Other comprehensive income	2.7	5.4		6.6
Total comprehensive income	7.2	18.9	21.2	38.0
Preferred stock dividends	2.6	2.6	5.2	5.2
Net income applicable to common shareowners	1.9	10.9	11.9	26.2
Condensed Consolidating Balance Sheets [Abstract]
Cash and cash equivalents	0.4	86.2	0.4	86.2
Receivables, net	1.2		1.2		2.0
Other current assets	9.3		9.3		5.8
Total current assets	10.9		10.9		77.4
Property, plant and equipment, net	0.1		0.1		0.1
Goodwill and intangibles net	0		0		0
Investments in and advances to subsidiaries	1,864.2		1,864.2		1,731.4
Other noncurrent assets	382.9		382.9		387.9
Total assets	2,258.1		2,258.1		2,196.8
Current portion of long-term debt	0		0		0
Accounts payable	0.2		0.2		1.0
Other current liabilities	91.9		91.9		93.2
Total current liabilities	92.1		92.1		94.2
Long-term debt, less current portion	2,182.4		2,182.4		2,182.0
Other noncurrent liabilities	383.9		383.9		404.3
Intercompany payables	295.9		295.9		231.5
Total liabilities	2,954.3		2,954.3		2,912.0
Shareowners' equity (deficit)	(696.2)		(696.2)		(715.2)
Total liabilities and shareowners' deficit	2,258.1		2,258.1		2,196.8
Condensed Consolidating Statements of Cash Flows [Abstract]
Cash flows provided by (used in) operating activities			(75.0)	(69.9)
Capital expenditures			0	0
Other investing activities				(0.2)
Net cash used in investing activities			0	(0.2)
Funding between Parent and subsidiaries net			10.8	93.1
Repayment of debt			0	0
Common stock repurchase			(0.3)
Other financing activities			(4.7)	(6.6)
Net cash provided by (used in) financing activities			5.8	86.5
Net increase (decrease) in cash and cash equivalents			(69.2)	16.4
Cash and cash equivalents at beginning of period			69.6	69.8
Cash and cash equivalents at end of period	0.4	86.2	0.4	86.2
Guarantor Subsidiaries [Member] | Notes guaranteed by subsidiaries [Member]
Condensed Consolidating Statements of Operations [Abstract]
Revenue	231.9	228.7	459.9	453.1
Operating costs and expenses	215.6	199.0	410.1	387.6
Operating income (loss)	16.3	29.7	49.8	65.5
Interest expense (income), net	11.0	13.4	21.7	27.0
Other expense (income), net	2.5	2.8	7.8	5.3
Income before income taxes	2.8	13.5	20.3	33.2
Income tax expense (benefit)	3.1	5.3	9.0	12.2
Equity in earnings of subsidiaries net of tax	0	0	0	0
Net income	(0.3)	8.2	11.3	21.0
Other comprehensive income	0	0	0	0
Total comprehensive income	(0.3)	8.2	11.3	21.0
Preferred stock dividends	0	0	0	0
Net income applicable to common shareowners	(0.3)	8.2	11.3	21.0
Condensed Consolidating Balance Sheets [Abstract]
Cash and cash equivalents	1.7	2.1	1.7	2.1
Receivables, net	0.9		0.9		1.9
Other current assets	28.2		28.2		27.6
Total current assets	30.8		30.8		30.6
Property, plant and equipment, net	815.7		815.7		731.4
Goodwill and intangibles net	491.6		491.6		505.1
Investments in and advances to subsidiaries	4.6		4.6		1.2
Other noncurrent assets	230.3		230.3		235.2
Total assets	1,573.0		1,573.0		1,503.5
Current portion of long-term debt	10.1		10.1		9.9
Accounts payable	80.7		80.7		109.6
Other current liabilities	58.8		58.8		63.7
Total current liabilities	149.6		149.6		183.2
Long-term debt, less current portion	113.8		113.8		113.7
Other noncurrent liabilities	153.5		153.5		155.1
Intercompany payables	550.8		550.8		457.4
Total liabilities	967.7		967.7		909.4
Shareowners' equity (deficit)	605.3		605.3		594.1
Total liabilities and shareowners' deficit	1,573.0		1,573.0		1,503.5
Condensed Consolidating Statements of Cash Flows [Abstract]
Cash flows provided by (used in) operating activities			48.9	68.0
Capital expenditures			(119.4)	(47.4)
Other investing activities				0
Net cash used in investing activities			(119.4)	(47.4)
Funding between Parent and subsidiaries net			77.6	(19.1)
Repayment of debt			(6.4)	(5.1)
Common stock repurchase			0
Other financing activities			(0.1)	0
Net cash provided by (used in) financing activities			71.1	(24.2)
Net increase (decrease) in cash and cash equivalents			0.6	(3.6)
Cash and cash equivalents at beginning of period			1.1	5.7
Cash and cash equivalents at end of period	1.7	2.1	1.7	2.1
Cincinnati Bell Telephone Company [Member] | Notes guaranteed by parent [Member]
Condensed Consolidating Statements of Operations [Abstract]
Revenue	161.3	165.6	321.2	329.4
Operating costs and expenses	108.4	110.8	212.8	215.5
Operating income (loss)	52.9	54.8	108.4	113.9
Interest expense (income), net	(0.1)	1.0	(0.2)	2.7
Other expense (income), net	1.2	1.8	2.3	3.9
Income before income taxes	51.8	52.0	106.3	107.3
Income tax expense (benefit)	18.7	19.6	38.5	40.5
Equity in earnings of subsidiaries net of tax	0	0	0	0
Net income	33.1	32.4	67.8	66.8
Other comprehensive income	0	0	0	0
Total comprehensive income	33.1	32.4	67.8	66.8
Preferred stock dividends	0	0	0	0
Net income applicable to common shareowners	33.1	32.4	67.8	66.8
Condensed Consolidating Balance Sheets [Abstract]
Cash and cash equivalents	1.3	1.5	1.3	1.5
Receivables, net	0		0		0
Other current assets	37.0		37.0		31.8
Total current assets	38.3		38.3		33.2
Property, plant and equipment, net	629.6		629.6		642.5
Goodwill and intangibles net	2.4		2.4		2.4
Investments in and advances to subsidiaries	313.3		313.3		237.3
Other noncurrent assets	7.0		7.0		7.6
Total assets	990.6		990.6		923.0
Current portion of long-term debt	2.9		2.9		3.1
Accounts payable	47.5		47.5		53.7
Other current liabilities	51.3		51.3		55.3
Total current liabilities	101.7		101.7		112.1
Long-term debt, less current portion	214.9		214.9		216.3
Other noncurrent liabilities	134.4		134.4		122.8
Intercompany payables	0		0		0
Total liabilities	451.0		451.0		451.2
Shareowners' equity (deficit)	539.6		539.6		471.8
Total liabilities and shareowners' deficit	990.6		990.6		923.0
Condensed Consolidating Statements of Cash Flows [Abstract]
Cash flows provided by (used in) operating activities			112.7	120.3
Capital expenditures			(47.7)	(45.1)
Other investing activities				0
Net cash used in investing activities			(47.7)	(45.1)
Funding between Parent and subsidiaries net			(63.5)	(74.4)
Repayment of debt			(1.6)	(1.1)
Common stock repurchase			0
Other financing activities			0	0
Net cash provided by (used in) financing activities			(65.1)	(75.5)
Net increase (decrease) in cash and cash equivalents			(0.1)	(0.3)
Cash and cash equivalents at beginning of period			1.4	1.8
Cash and cash equivalents at end of period	1.3	1.5	1.3	1.5
Non-Guarantor Subsidiaries [Member] | Notes guaranteed by parent [Member]
Condensed Consolidating Statements of Operations [Abstract]
Revenue	222.3	214.9	440.8	424.4
Operating costs and expenses	206.0	185.5	391.9	362.1
Operating income (loss)	16.3	29.4	48.9	62.3
Interest expense (income), net	13.0	15.4	26.9	31.2
Other expense (income), net	(0.9)	(1.3)	(0.1)	(3.0)
Income before income taxes	4.2	15.3	22.1	34.1
Income tax expense (benefit)	4.0	6.5	10.8	12.8
Equity in earnings of subsidiaries net of tax	0	0	0	0
Net income	0.2	8.8	11.3	21.3
Other comprehensive income	0	0	0	0
Total comprehensive income	0.2	8.8	11.3	21.3
Preferred stock dividends	0	0	0	0
Net income applicable to common shareowners	0.2	8.8	11.3	21.3
Condensed Consolidating Balance Sheets [Abstract]
Cash and cash equivalents	2.4	2.4	2.4	2.4
Receivables, net	193.6		193.6		177.4
Other current assets	33.8		33.8		31.7
Total current assets	229.8		229.8		211.8
Property, plant and equipment, net	841.8		841.8		757.9
Goodwill and intangibles net	491.6		491.6		505.1
Investments in and advances to subsidiaries	0		0		0
Other noncurrent assets	229.2		229.2		234.0
Total assets	1,792.4		1,792.4		1,708.8
Current portion of long-term debt	10.6		10.6		9.9
Accounts payable	72.0		72.0		78.7
Other current liabilities	56.2		56.2		61.5
Total current liabilities	138.8		138.8		150.1
Long-term debt, less current portion	141.4		141.4		122.3
Other noncurrent liabilities	170.2		170.2		171.0
Intercompany payables	661.0		661.0		595.8
Total liabilities	1,111.4		1,111.4		1,039.2
Shareowners' equity (deficit)	681.0		681.0		669.6
Total liabilities and shareowners' deficit	1,792.4		1,792.4		1,708.8
Condensed Consolidating Statements of Cash Flows [Abstract]
Cash flows provided by (used in) operating activities			54.2	67.5
Capital expenditures			(119.7)	(47.4)
Other investing activities				0
Net cash used in investing activities			(119.7)	(47.4)
Funding between Parent and subsidiaries net			52.7	(18.7)
Borrowing on corporate credit and receivables facilities, net			19.0	0.4
Repayment of debt			(6.4)	(5.1)
Common stock repurchase			0
Other financing activities			(0.1)	0
Net cash provided by (used in) financing activities			65.2	(23.4)
Net increase (decrease) in cash and cash equivalents			(0.3)	(3.3)
Cash and cash equivalents at beginning of period			2.7	5.7
Cash and cash equivalents at end of period	2.4	2.4	2.4	2.4
Non-Guarantor Subsidiaries [Member] | Notes guaranteed by subsidiaries [Member]
Condensed Consolidating Statements of Operations [Abstract]
Revenue	151.7	151.8	302.1	300.7
Operating costs and expenses	98.8	97.3	194.6	190.0
Operating income (loss)	52.9	54.5	107.5	110.7
Interest expense (income), net	1.9	3.0	5.0	6.9
Other expense (income), net	(2.2)	(2.3)	(5.6)	(4.4)
Income before income taxes	53.2	53.8	108.1	108.2
Income tax expense (benefit)	19.6	20.8	40.3	41.1
Equity in earnings of subsidiaries net of tax	0	0	0	0
Net income	33.6	33.0	67.8	67.1
Other comprehensive income	0	0	0	0
Total comprehensive income	33.6	33.0	67.8	67.1
Preferred stock dividends	0	0	0	0
Net income applicable to common shareowners	33.6	33.0	67.8	67.1
Condensed Consolidating Balance Sheets [Abstract]
Cash and cash equivalents	2.0	1.8	2.0	1.8
Receivables, net	192.7		192.7		175.5
Other current assets	42.6		42.6		35.9
Total current assets	237.3		237.3		214.4
Property, plant and equipment, net	655.7		655.7		669.0
Goodwill and intangibles net	2.4		2.4		2.4
Investments in and advances to subsidiaries	286.1		286.1		202.5
Other noncurrent assets	5.9		5.9		6.4
Total assets	1,187.4		1,187.4		1,094.7
Current portion of long-term debt	3.4		3.4		3.1
Accounts payable	38.8		38.8		22.8
Other current liabilities	48.7		48.7		53.1
Total current liabilities	90.9		90.9		79.0
Long-term debt, less current portion	242.5		242.5		224.9
Other noncurrent liabilities	151.0		151.0		138.7
Intercompany payables	102.3		102.3		123.0
Total liabilities	586.7		586.7		565.6
Shareowners' equity (deficit)	600.7		600.7		529.1
Total liabilities and shareowners' deficit	1,187.4		1,187.4		1,094.7
Condensed Consolidating Statements of Cash Flows [Abstract]
Cash flows provided by (used in) operating activities			118.0	119.8
Capital expenditures			(48.0)	(45.1)
Other investing activities				0
Net cash used in investing activities			(48.0)	(45.1)
Funding between Parent and subsidiaries net			(88.4)	(74.0)
Borrowing on corporate credit and receivables facilities, net			19.0	0.4
Repayment of debt			(1.6)	(1.1)
Common stock repurchase			0
Other financing activities			0	0
Net cash provided by (used in) financing activities			(71.0)	(74.7)
Net increase (decrease) in cash and cash equivalents			(1.0)	0
Cash and cash equivalents at beginning of period			3.0	1.8
Cash and cash equivalents at end of period	2.0	1.8	2.0	1.8
Consolidation, Eliminations [Member] | Notes guaranteed by parent [Member]
Condensed Consolidating Statements of Operations [Abstract]
Revenue	(15.4)	(14.4)	(31.0)	(28.4)
Operating costs and expenses	(15.4)	(14.4)	(31.0)	(28.4)
Operating income (loss)	0	0	0	0
Interest expense (income), net	0	0	0	0
Other expense (income), net	0	0	0	0
Income before income taxes	0	0	0	0
Income tax expense (benefit)	0	0	0	0
Equity in earnings of subsidiaries net of tax	(33.3)	(41.2)	(79.1)	(88.1)
Net income	(33.3)	(41.2)	(79.1)	(88.1)
Other comprehensive income	0	0	0	0
Total comprehensive income	(33.3)	(41.2)	(79.1)	(88.1)
Preferred stock dividends	0	0	0	0
Net income applicable to common shareowners	(33.3)	(41.2)	(79.1)	(88.1)
Condensed Consolidating Balance Sheets [Abstract]
Cash and cash equivalents	0	0	0	0
Receivables, net	0		0		0
Other current assets	(0.4)		(0.4)		(1.4)
Total current assets	(0.4)		(0.4)		(1.4)
Property, plant and equipment, net	0		0		0
Goodwill and intangibles net	0		0		0
Investments in and advances to subsidiaries	(2,177.5)		(2,177.5)		(1,968.7)
Other noncurrent assets	(160.5)		(160.5)		(143.8)
Total assets	(2,338.4)		(2,338.4)		(2,113.9)
Current portion of long-term debt	0		0		0
Accounts payable	0		0		0
Other current liabilities	(1.2)		(1.2)		0
Total current liabilities	(1.2)		(1.2)		0
Long-term debt, less current portion	0		0		0
Other noncurrent liabilities	(159.7)		(159.7)		(145.2)
Intercompany payables	(956.9)		(956.9)		(827.3)
Total liabilities	(1,117.8)		(1,117.8)		(972.5)
Shareowners' equity (deficit)	(1,220.6)		(1,220.6)		(1,141.4)
Total liabilities and shareowners' deficit	(2,338.4)		(2,338.4)		(2,113.9)
Condensed Consolidating Statements of Cash Flows [Abstract]
Cash flows provided by (used in) operating activities			0	0
Capital expenditures			0	0
Other investing activities				0
Net cash used in investing activities			0	0
Funding between Parent and subsidiaries net			0	0
Repayment of debt			0	0
Common stock repurchase			0
Other financing activities			0	0
Net cash provided by (used in) financing activities			0	0
Net increase (decrease) in cash and cash equivalents			0	0
Cash and cash equivalents at beginning of period			0	0
Cash and cash equivalents at end of period	0	0	0	0
Consolidation, Eliminations [Member] | Notes guaranteed by subsidiaries [Member]
Condensed Consolidating Statements of Operations [Abstract]
Revenue	(15.4)	(14.4)	(31.0)	(28.4)
Operating costs and expenses	(15.4)	(14.4)	(31.0)	(28.4)
Operating income (loss)	0	0	0	0
Interest expense (income), net	0	0	0	0
Other expense (income), net	0	0	0	0
Income before income taxes	0	0	0	0
Income tax expense (benefit)	0	0	0	0
Equity in earnings of subsidiaries net of tax	(33.3)	(41.2)	(79.1)	(88.1)
Net income	(33.3)	(41.2)	(79.1)	(88.1)
Other comprehensive income	0	0	0	0
Total comprehensive income	(33.3)	(41.2)	(79.1)	(88.1)
Preferred stock dividends	0	0	0	0
Net income applicable to common shareowners	(33.3)	(41.2)	(79.1)	(88.1)
Condensed Consolidating Balance Sheets [Abstract]
Cash and cash equivalents	0	0	0	0
Receivables, net	0		0		0
Other current assets	(0.4)		(0.4)		(1.4)
Total current assets	(0.4)		(0.4)		(1.4)
Property, plant and equipment, net	0		0		0
Goodwill and intangibles net	0		0		0
Investments in and advances to subsidiaries	(2,154.9)		(2,154.9)		(1,935.1)
Other noncurrent assets	(160.5)		(160.5)		(143.8)
Total assets	(2,315.8)		(2,315.8)		(2,080.3)
Current portion of long-term debt	0		0		0
Accounts payable	0		0		0
Other current liabilities	(1.2)		(1.2)		0
Total current liabilities	(1.2)		(1.2)		0
Long-term debt, less current portion	0		0		0
Other noncurrent liabilities	(159.6)		(159.6)		(145.2)
Intercompany payables	(949.0)		(949.0)		(811.9)
Total liabilities	(1,109.8)		(1,109.8)		(957.1)
Shareowners' equity (deficit)	(1,206.0)		(1,206.0)		(1,123.2)
Total liabilities and shareowners' deficit	(2,315.8)		(2,315.8)		(2,080.3)
Condensed Consolidating Statements of Cash Flows [Abstract]
Cash flows provided by (used in) operating activities			0	0
Capital expenditures			0	0
Other investing activities				0
Net cash used in investing activities			0	0
Funding between Parent and subsidiaries net			0	0
Repayment of debt			0	0
Common stock repurchase			0
Other financing activities			0	0
Net cash provided by (used in) financing activities			0	0
Net increase (decrease) in cash and cash equivalents			0	0
Cash and cash equivalents at beginning of period			0	0
Cash and cash equivalents at end of period	0	0	0	0
Various Cincinnati Bell Telephone Notes [Member]
Condensed Financial Statements, Captions [Line Items]
Guarantor Obligations, Current Carrying Value	$ 207.5		$ 207.5