Financial Instruments (Details) (USD $)	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012	Dec. 31, 2012
Fair Value of Derivative Instruments
Asset Derivatives	$ 5,200			$ 4,500
Liability Derivatives	5,200			5,500
Gross assets offset in Balance Sheet	0			0
Net recognized assets in Balance Sheet	5,200			4,500
Gross assets not offset in Balance Sheet, Financial Instruments	0			0
Gross assets not offset in Balance Sheet, Cash Collateral	0			0
Gross assets not offset in Balance Sheet, Net Amount	5,200			4,500
Gross liabilities offset in Balance Sheet	0			0
Net recognized liabilities in Balance Sheet	5,200			5,500
Gross liabilities not offset in Balance Sheet, Financial Instruments	0			0
Gross liabilities not offset in Balance Sheet, Cash Collateral	0			0
Gross liabilities not offset in Balance Sheet, Net Amount	5,200			5,500
Debt
Maximum initial maturity period of borrowings	90 days
Aggregate carrying value of all debt	950,000,000	[1]		0	[1]
Gasoline swaps
Fair Value of Derivative Instruments
Asset Derivatives	1,600
Liability Derivatives				100
Gross assets offset in Balance Sheet	0
Net recognized assets in Balance Sheet	1,600
Gross assets not offset in Balance Sheet, Financial Instruments	0
Gross assets not offset in Balance Sheet, Cash Collateral	0
Gross assets not offset in Balance Sheet, Net Amount	1,600
Gross liabilities offset in Balance Sheet				0
Net recognized liabilities in Balance Sheet				100
Gross liabilities not offset in Balance Sheet, Financial Instruments				0
Gross liabilities not offset in Balance Sheet, Cash Collateral				0
Gross liabilities not offset in Balance Sheet, Net Amount				100
Interest rate caps
Fair Value of Derivative Instruments
Asset Derivatives	800			900
Liability Derivatives	800			900
Gross assets offset in Balance Sheet	0			0
Net recognized assets in Balance Sheet	800			900
Gross assets not offset in Balance Sheet, Financial Instruments	0			0
Gross assets not offset in Balance Sheet, Cash Collateral	0			0
Gross assets not offset in Balance Sheet, Net Amount	800			900
Gross liabilities offset in Balance Sheet	0			0
Net recognized liabilities in Balance Sheet	800			900
Gross liabilities not offset in Balance Sheet, Financial Instruments	0			0
Gross liabilities not offset in Balance Sheet, Cash Collateral	0			0
Gross liabilities not offset in Balance Sheet, Net Amount	800			900
Foreign exchange forward contracts
Fair Value of Derivative Instruments
Asset Derivatives	2,700			3,400
Liability Derivatives	4,400			4,500
Gross assets offset in Balance Sheet	0			0
Net recognized assets in Balance Sheet	2,700			3,400
Gross assets not offset in Balance Sheet, Financial Instruments	0			0
Gross assets not offset in Balance Sheet, Cash Collateral	0			0
Gross assets not offset in Balance Sheet, Net Amount	2,700			3,400
Gross liabilities offset in Balance Sheet	0			0
Net recognized liabilities in Balance Sheet	4,400			4,500
Gross liabilities not offset in Balance Sheet, Financial Instruments	0			0
Gross liabilities not offset in Balance Sheet, Cash Collateral	0			0
Gross liabilities not offset in Balance Sheet, Net Amount	4,400			4,500
Foreign exchange options
Fair Value of Derivative Instruments
Asset Derivatives	100			200
Gross assets offset in Balance Sheet	0			0
Net recognized assets in Balance Sheet	100			200
Gross assets not offset in Balance Sheet, Financial Instruments	0			0
Gross assets not offset in Balance Sheet, Cash Collateral	0			0
Gross assets not offset in Balance Sheet, Net Amount	100			200
Level 2
Debt
Aggregate fair value of all debt	17,700,500,000			16,493,100,000
Recurring | Derivatives not designated as hedging instruments
Fair Value of Derivative Instruments
Asset Derivatives	5,200,000	[2],[3]		4,500,000	[2],[3]
Liability Derivatives	5,200,000	[2],[3]		5,500,000	[2],[3]
Amount of gain or loss recognized in income on derivative	5,800,000		(3,600,000)
Recurring | Derivatives not designated as hedging instruments | Gasoline swaps
Fair Value of Derivative Instruments
Asset Derivatives	1,600,000	[2],[3]		0	[2],[3]
Liability Derivatives	0	[2],[3]		100,000	[2],[3]
Amount of gain or loss recognized in income on derivative	1,700,000		1,800,000
Recurring | Derivatives not designated as hedging instruments | Interest rate caps
Fair Value of Derivative Instruments
Asset Derivatives	800,000	[2],[3]		900,000	[2],[3]
Liability Derivatives	800,000	[2],[3]		900,000	[2],[3]
Amount of gain or loss recognized in income on derivative	100,000		0
Recurring | Derivatives not designated as hedging instruments | Foreign exchange forward contracts
Fair Value of Derivative Instruments
Asset Derivatives	2,700,000	[2],[3]		3,400,000	[2],[3]
Liability Derivatives	4,400,000	[2],[3]		4,500,000	[2],[3]
Amount of gain or loss recognized in income on derivative	4,100,000		(5,400,000)
Recurring | Derivatives not designated as hedging instruments | Foreign exchange options
Fair Value of Derivative Instruments
Asset Derivatives	100,000	[2],[3]		200,000	[2],[3]
Liability Derivatives	0	[2],[3]		0	[2],[3]
Amount of gain or loss recognized in income on derivative	(100,000)		0
Recurring | Estimate of Fair Value, Fair Value Disclosure [Member] | Derivatives not designated as hedging instruments
Fair Value of Derivative Instruments
Asset Derivatives	5,200,000			4,500,000
Liability Derivatives	5,200,000			5,500,000
Recurring | Estimate of Fair Value, Fair Value Disclosure [Member] | Derivatives not designated as hedging instruments | Gasoline swaps
Fair Value of Derivative Instruments
Asset Derivatives	1,600,000
Liability Derivatives				100,000
Recurring | Estimate of Fair Value, Fair Value Disclosure [Member] | Derivatives not designated as hedging instruments | Interest rate caps
Fair Value of Derivative Instruments
Asset Derivatives	800,000			900,000
Liability Derivatives	800,000			900,000
Recurring | Estimate of Fair Value, Fair Value Disclosure [Member] | Derivatives not designated as hedging instruments | Foreign exchange forward contracts
Fair Value of Derivative Instruments
Asset Derivatives	2,700,000			3,400,000
Liability Derivatives	4,400,000			4,500,000
Recurring | Estimate of Fair Value, Fair Value Disclosure [Member] | Derivatives not designated as hedging instruments | Foreign exchange options
Fair Value of Derivative Instruments
Asset Derivatives	100,000			200,000
Recurring | Level 1 | Derivatives not designated as hedging instruments
Fair Value of Derivative Instruments
Asset Derivatives	0			0
Liability Derivatives	0			0
Recurring | Level 1 | Derivatives not designated as hedging instruments | Gasoline swaps
Fair Value of Derivative Instruments
Asset Derivatives	0
Liability Derivatives				0
Recurring | Level 1 | Derivatives not designated as hedging instruments | Interest rate caps
Fair Value of Derivative Instruments
Asset Derivatives	0			0
Liability Derivatives	0			0
Recurring | Level 1 | Derivatives not designated as hedging instruments | Foreign exchange forward contracts
Fair Value of Derivative Instruments
Asset Derivatives	0			0
Liability Derivatives	0			0
Recurring | Level 1 | Derivatives not designated as hedging instruments | Foreign exchange options
Fair Value of Derivative Instruments
Asset Derivatives	0			0
Recurring | Level 2
Debt
Aggregate carrying value of all debt	16,337,000,000			15,473,800,000
Recurring | Level 2 | Derivatives not designated as hedging instruments
Fair Value of Derivative Instruments
Asset Derivatives	5,200,000			4,500,000
Liability Derivatives	5,200,000			5,500,000
Recurring | Level 2 | Derivatives not designated as hedging instruments | Gasoline swaps
Fair Value of Derivative Instruments
Asset Derivatives	1,600,000
Liability Derivatives				100,000
Recurring | Level 2 | Derivatives not designated as hedging instruments | Interest rate caps
Fair Value of Derivative Instruments
Asset Derivatives	800,000			900,000
Liability Derivatives	800,000			900,000
Recurring | Level 2 | Derivatives not designated as hedging instruments | Foreign exchange forward contracts
Fair Value of Derivative Instruments
Asset Derivatives	2,700,000			3,400,000
Liability Derivatives	4,400,000			4,500,000
Recurring | Level 2 | Derivatives not designated as hedging instruments | Foreign exchange options
Fair Value of Derivative Instruments
Asset Derivatives	100,000			200,000
Recurring | Level 3 | Derivatives not designated as hedging instruments
Fair Value of Derivative Instruments
Asset Derivatives	0			0
Liability Derivatives	0			0
Recurring | Level 3 | Derivatives not designated as hedging instruments | Gasoline swaps
Fair Value of Derivative Instruments
Asset Derivatives	0
Liability Derivatives				0
Recurring | Level 3 | Derivatives not designated as hedging instruments | Interest rate caps
Fair Value of Derivative Instruments
Asset Derivatives	0			0
Liability Derivatives	0			0
Recurring | Level 3 | Derivatives not designated as hedging instruments | Foreign exchange forward contracts
Fair Value of Derivative Instruments
Asset Derivatives	0			0
Liability Derivatives	0			0
Recurring | Level 3 | Derivatives not designated as hedging instruments | Foreign exchange options
Fair Value of Derivative Instruments
Asset Derivatives	$ 0			$ 0

[1] Maturity reference is to the "expected final maturity date" as opposed to the subsequent "legal maturity date." The expected final maturity date is the date by which Hertz and investors in the relevant indebtedness expect the relevant indebtedness to be repaid. The legal final maturity date is the date on which the relevant indebtedness is legally due and payable.

[2] All asset derivatives are recorded in "Prepaid expenses and other assets" and all liability derivatives are recorded in "Accrued liabilities" on our condensed consolidated balance sheets.

[3] All fair value measurements were primarily based upon significant observable (Level 2) inputs.