Document and Entity Information	9 Months Ended
	Jun. 30, 2014	Jul. 21, 2014
Document and Entity Information [Abstract]
Entity Registrant Name	HORTON D R INC /DE/
Entity Central Index Key	0000882184
Document Type	10-Q
Document Period End Date	Jun. 30, 2014
Amendment Flag	false
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q3
Current Fiscal Year End Date	--09-30
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		364,472,463