Document and Entity Information	9 Months Ended
	Sep. 30, 2011	Oct. 17, 2011
Document and Entity Information [Abstract]
Entity Registrant Name	DEX ONE CORPORATION
Entity Central Index Key	0000030419
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Document Type	10-Q
Document Period End Date	Sep. 30, 2011
Document Fiscal Year Focus	2011
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding		50,233,617