Earnings (Loss) Per Share (Details) (USD $)	1 Months Ended		3 Months Ended
	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2013	Mar. 31, 2012
Numerator:
Net income (loss)			$ 17,963,000	$ (56,333,000)
Interest on Convertible Senior Notes, net of tax			1,000,000	0
Net income (loss) attributable to Hertz Global Holdings, Inc. and Subsidiaries' common stockholders, diluted			$ 19,000,000	$ (56,300,000)
Denominator:
Weighted average shares used in basic computation			415,847,000	418,076,000
Add: Stock options, RSUs and PSUs (in shares)			6,600,000	0
Add: Potential issuance of common stock upon conversion of Convertible Senior Notes (in shares)			38,400,000	0
Weighted average shares used in diluted computation			460,897,000	418,076,000
Earnings Per Share:
Earnings (loss) per share attributable to Hertz Global Holdings, Inc. and Subsidiaries' common stockholders, basic (in dollars per share)			$ 0.04	$ (0.13)
Earnings (loss) per share attributable to Hertz Global Holdings, Inc. and Subsidiaries' common stockholders, diluted (in dollars per share)			$ 0.04	$ (0.13)
Common stock shares sold (in shares)	60,050,777	50,000,000
Treasury Stock acquired (in shares)	23,200,000
Convertible Senior Notes
Earnings Per Share:
5.25% Convertible Senior Notes due June 2014	5.25%		5.25%
Debt instrument, redemption, instruments settled in stock, percent	100.00%		100.00%
Restricted Stock Units
Earnings Per Share:
Anti-dilutive securities (in shares)				19,400,000