Restatement (Balance Sheet) (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014	Dec. 31, 2013
Effect of Error Corrections on Consolidated Balance Sheet [Abstract]
Cash and cash equivalents	$ 537	$ 490	$ 540	$ 411
Restricted cash and cash equivalents	421	571
Receivables, less allowance for doubtful accounts	1,390	1,597
Due from affiliates	102	95
Inventories, net	75	67
Prepaid expenses and other assets	964	917
Cars	16,393	14,622
Accumulated Depreciation, Cars	(2,986)	(3,411)
Equipment	3,781	3,613
Accumulated Depreciation, Other Equipment	(1,174)	(1,171)
Revenue earning equipment, net	16,014	13,653
Land, buildings and leasehold improvements	1,364	1,268
Service equipment and other	1,075	1,148
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	(1,129)	(1,094)
Property and equipment, net	1,310	1,322
Other intangible assets, net	3,945	4,009
Goodwill	1,360	1,359
Total assets	26,118	24,080
Accounts payable	1,431	1,008
Accrued liabilities	1,129	1,148
Accrued taxes, net	123	134
Debt	17,682	15,993
Public liability and property damage	384	385
Deferred taxes on income, net	2,933	2,917
Liabilities	$ 23,682	$ 21,585
Commitments and contingencies
Common Stock, Value, Issued	$ 0	$ 0
Additional paid-in capital	3,575	3,566
Accumulated deficit	(989)	(956)
Accumulated other comprehensive income (loss)	(150)	(115)
The Hertz Corporation and Subsidiaries stockholder's equity	2,436	2,495
Total liabilities and equity	26,118	24,080
As Previously Reported
Effect of Error Corrections on Consolidated Balance Sheet [Abstract]
Cash and cash equivalents	537	490
Restricted cash and cash equivalents	421
Receivables, less allowance for doubtful accounts	1,390
Due from affiliates	102
Inventories, net	75
Prepaid expenses and other assets	938
Cars	16,393
Accumulated Depreciation, Cars	(3,004)
Equipment	3,781
Accumulated Depreciation, Other Equipment	(1,174)
Revenue earning equipment, net	15,996
Land, buildings and leasehold improvements	1,364
Service equipment and other	1,072
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	(1,129)
Property and equipment, net	1,307
Other intangible assets, net	3,945
Goodwill	1,360
Total assets	26,071
Accounts payable	1,431
Accrued liabilities	1,129
Accrued taxes, net	102
Debt	17,682
Public liability and property damage	384
Deferred taxes on income, net	2,920
Liabilities	23,648
Common Stock, Value, Issued	0
Additional paid-in capital	3,575
Accumulated deficit	(1,002)
Accumulated other comprehensive income (loss)	(150)
The Hertz Corporation and Subsidiaries stockholder's equity	2,423
Total liabilities and equity	26,071
Restatement Adjustment
Effect of Error Corrections on Consolidated Balance Sheet [Abstract]
Cash and cash equivalents	0	$ 0
Restricted cash and cash equivalents	0
Receivables, less allowance for doubtful accounts	0
Due from affiliates	0
Inventories, net	0
Prepaid expenses and other assets	26
Cars	0
Accumulated Depreciation, Cars	18
Equipment	0
Accumulated Depreciation, Other Equipment	0
Revenue earning equipment, net	18
Land, buildings and leasehold improvements	0
Service equipment and other	3
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	0
Property and equipment, net	3
Other intangible assets, net	0
Goodwill	0
Total assets	47
Accounts payable	0
Accrued liabilities	0
Accrued taxes, net	21
Debt	0
Public liability and property damage	0
Deferred taxes on income, net	13
Liabilities	34
Common Stock, Value, Issued	0
Additional paid-in capital	0
Accumulated deficit	13
Accumulated other comprehensive income (loss)	0
The Hertz Corporation and Subsidiaries stockholder's equity	13
Total liabilities and equity	$ 47