Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2012	Feb. 26, 2013	Jun. 29, 2012
Document And Entity Information [Abstract]
Entity Registrant Name	HERTZ GLOBAL HOLDINGS INC
Entity Central Index Key	0001364479
Document Type	10-K
Document Period End Date	Dec. 31, 2012
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		421,660,516
Entity Public Float			$ 3,330,219,187
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	FY
Entity Well-known Seasoned Issuer	Yes