Contingencies and Off-Balance Sheet Commitments (Details) (USD $)			12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 Telephone Consumer Protection Act Hertz Equipment Rental Corporation	Dec. 31, 2011 California Tourism Assessments
Loss Contingencies [Line Items]
Liability recorded for public liability and property damage matters	$ 332,232,000	$ 281,534,000
Period Prior to Filing of Claim During which Advertising Materials were Sent to Plaintiff without Consent			4 years
Percentage of Tourism Assessment Alleged to be Charged to Consumers				2.50%
Aggregate amounts accrued for environmental liabilities	$ 2,600,000	$ 1,500,000