Quarterly Financial Information (Unaudited) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Quarterly Financial Information Disclosure [Abstract]
Revenues	$ 2,318,600	$ 2,516,200	$ 2,225,100	$ 1,960,900	$ 2,013,800	$ 2,432,300	$ 2,072,300	$ 1,780,000	$ 9,020,807	$ 8,298,380	$ 7,562,534
Income (loss) before income taxes	(40,300)	368,900	158,700	(36,800)	92,800	295,700	94,600	(158,900)	450,545	324,270	(14,636)
Net loss attributable to Hertz Global Holdings, Inc. and Subsidiaries' common stockholders	$ (36,400)	$ 242,900	$ 92,900	$ (56,300)	$ 47,000	$ 206,700	$ 55,000	$ (132,600)	$ 243,079	$ 176,170	$ (48,681)
Earnings (loss) per share, basic (In dollars per share)	$ (0.09)	$ 0.58	$ 0.22	$ (0.13)	$ 0.11	$ 0.50	$ 0.13	$ (0.32)	$ 0.58	$ 0.42	$ (0.12)
Earnings (loss) per share, diluted (In dollars per share)	$ (0.09)	$ 0.55	$ 0.21	$ (0.13)	$ 0.11	$ 0.47	$ 0.12	$ (0.32)	$ 0.54	$ 0.40	$ (0.12)