Segment Information (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended			3 Months Ended		9 Months Ended				3 Months Ended		9 Months Ended				3 Months Ended		9 Months Ended				3 Months Ended		9 Months Ended				3 Months Ended		9 Months Ended				3 Months Ended				9 Months Ended						3 Months Ended				9 Months Ended				3 Months Ended				9 Months Ended				3 Months Ended		9 Months Ended		3 Months Ended				9 Months Ended				3 Months Ended				9 Months Ended				3 Months Ended				9 Months Ended				3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended						9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 segment	Sep. 30, 2012	Dec. 31, 2012	Sep. 30, 2013 U.S. car rental	Sep. 30, 2012 U.S. car rental	Sep. 30, 2013 U.S. car rental	Sep. 30, 2012 U.S. car rental	Dec. 31, 2012 U.S. car rental	Dec. 31, 2011 U.S. car rental	Sep. 30, 2013 International car rental	Sep. 30, 2012 International car rental	Sep. 30, 2013 International car rental	Sep. 30, 2012 International car rental	Dec. 31, 2012 International car rental	Dec. 31, 2011 International car rental	Sep. 30, 2013 Total reportable segments	Sep. 30, 2012 Total reportable segments	Sep. 30, 2013 Total reportable segments	Sep. 30, 2012 Total reportable segments	Dec. 31, 2012 Total reportable segments	Dec. 31, 2011 Total reportable segments	Sep. 30, 2013 Equipment Rental	Sep. 30, 2012 Equipment Rental	Sep. 30, 2013 Equipment Rental	Sep. 30, 2012 Equipment Rental	Dec. 31, 2012 Equipment Rental	Dec. 31, 2011 Equipment Rental	Sep. 30, 2013 Other	Sep. 30, 2012 Other	Sep. 30, 2013 Other	Sep. 30, 2012 Other	Dec. 31, 2012 Other	Dec. 31, 2011 Other	Sep. 30, 2013 Other reconciling items		Sep. 30, 2012 Other reconciling items		Sep. 30, 2013 Other reconciling items		Sep. 30, 2012 Other reconciling items		Dec. 31, 2012 Other reconciling items	Dec. 31, 2011 Other reconciling items	Sep. 30, 2013 Purchase accounting		Sep. 30, 2012 Purchase accounting		Sep. 30, 2013 Purchase accounting		Sep. 30, 2012 Purchase accounting		Sep. 30, 2013 Non-cash debt charges		Sep. 30, 2012 Non-cash debt charges		Sep. 30, 2013 Non-cash debt charges		Sep. 30, 2012 Non-cash debt charges		Sep. 30, 2013 Restructuring charges	Sep. 30, 2012 Restructuring charges	Sep. 30, 2013 Restructuring charges	Sep. 30, 2012 Restructuring charges	Sep. 30, 2013 Restructuring related charges		Sep. 30, 2012 Restructuring related charges		Sep. 30, 2013 Restructuring related charges		Sep. 30, 2012 Restructuring related charges		Sep. 30, 2013 Integration expenses		Sep. 30, 2012 Integration expenses		Sep. 30, 2013 Integration expenses		Sep. 30, 2012 Integration expenses		Sep. 30, 2013 Derivative gains (losses)		Sep. 30, 2012 Derivative gains (losses)		Sep. 30, 2013 Derivative gains (losses)		Sep. 30, 2012 Derivative gains (losses)		Sep. 30, 2013 Acquisition related costs	Sep. 30, 2012 Acquisition related costs	Sep. 30, 2013 Acquisition related costs	Sep. 30, 2012 Acquisition related costs	Sep. 30, 2013 Relocation Costs	Sep. 30, 2012 Relocation Costs	Sep. 30, 2013 Relocation Costs	Sep. 30, 2012 Relocation Costs	Sep. 30, 2013 Asset Impairment [Member]		Sep. 30, 2012 Asset Impairment [Member]		Sep. 30, 2013 Other	Sep. 30, 2012 Other	Sep. 30, 2013 Other	Sep. 30, 2012 Other	Jul. 31, 2013 RSUs	May 30, 2013 RSUs
Reconciliation of adjusted pre-tax income to income (loss) before income taxes
Increase (Decrease) in Assets			$ 2,291.4
Weighted average grant date fair value																																																																																																										$ 25.61	$ 23.80
Number of Reportable Segments			4
Car rental	2,534.1	2,031.6	6,686.3	5,353.6		1,765.5	1,331.0	4,848.0	3,599.6			768.6	700.6	1,838.3	1,754.0
Equipment rental	401.8	363.0	1,137.1	1,000.1																				401.8	363.0	1,137.1	1,000.1
Revenues	3,069.4	2,516.2	8,220.6	6,702.3														3,069.4	2,516.2	8,220.6	6,702.3
Adjusted Pre-Tax Income (Loss)	374.0	382.1	685.7	529.7		391.8	317.0	934.6	658.4			129.4	99.4	125.8	106.4			622.7	505.5	1,308.7	943.9			87.5	76.2	207.1	144.6			14.0	12.9	41.2	34.5			(99.6)	[1]	(74.4)	[1]	(313.9)	[1]	(237.1)	[1]			(34.3)	[2]	(23.9)	[2]	(99.8)	[2]	(76.9)	[2]	(14.2)	[3]	(13.6)	[3]	(36.3)	[3]	(46.1)	[3]	(36.3)	(1.5)	(57.6)	(24.3)	(2.9)	[4]	(2.0)	[4]	(14.2)	[4]	(10.3)	[4]	(8.3)	[5]	0	[5]	(29.1)	[5]	0	[5]	(0.5)	[6]	0.1	[6]	(0.5)	[6]	0.1	[6]	(3.4)	(8.1)	(13.7)	(19.6)	(3.9)	0	(4.4)	0	(44.0)	[7]	0	[7]	(1.3)	0	(9.5)	0
Other	133.5	121.6	397.2	348.6																										133.5	121.6	397.2	348.6
Total assets	$ 25,581.5		$ 25,581.5		$ 23,290.1	$ 14,772.4		$ 14,772.4		$ 13,608.2	$ 8,330.2	$ 4,302.1		$ 4,302.1		$ 3,543.9	$ 3,378.9	$ 25,581.5		$ 25,581.5		$ 23,290.1	$ 17,667.3	$ 3,839.4		$ 3,839.4		$ 3,623.0	$ 3,058.9	$ 1,341.5		$ 1,341.5		$ 1,305.8	$ 1,332.7	$ 1,326.1				$ 1,326.1				$ 1,209.2	$ 1,566.6

[1] Represents general corporate expenses and certain interest expense (including net interest on corporate debt).

[2] Represents the purchase accounting effects of the 2005 sale of all of Hertz's stock on our results of operations relating to increased depreciation and amortization of tangible and intangible assets and accretion of revalued workers' compensation and public liability and property damage liabilities. Also represents the purchase accounting effects of certain subsequent acquisitions on our results of operations relating to increased depreciation and amortization of tangible and intangible assets.

[3] Represents non-cash debt charges relating to the amortization and write-off of deferred debt financing costs and debt discounts.

[4] Represents incremental costs incurred directly supporting our business transformation initiatives. Such costs include transition costs incurred in connection with our business process outsourcing arrangements and incremental costs incurred to facilitate business process re-engineering initiatives that involve significant organization redesign and extensive operational process changes.

[5] .

[6] Primarily represents Dollar Thrifty integration related expenses and adjustments.

[7]