Guarantor And Non-Guarantor Consolidating Condensed Financial Statements (Consolidating Condensed Balance Sheets) (Detail) (USD $) In Millions, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 554	$ 534	$ 1,002	$ 911
Receivables, net	640	507
Deferred income taxes	205	120
Other current assets	527	380
Total current assets	1,926	1,541
Property and equipment, net	499	493
Deferred income taxes	1,265	444
Goodwill	348	353
Other intangibles, net	708	713
Other non-current assets	249	304
Total assets exclusive of assets under vehicle programs	4,995	3,848
Assets under vehicle programs:
Program cash	101	11
Vehicles, net	10,343	8,356
Receivables from vehicle manufacturers and other	575	380
Investment in Avis Budget Rental Car Funding (AESOP) LLC-related party	362	343
Total Assets under vehicle programs	11,381	9,090
Total assets	16,376	12,938
Current liabilities:
Accounts payable and other current liabilities	1,576	1,433
Short-term debt and current portion of long-term debt	81	37
Total current liabilities	1,657	1,470
Long-term debt	2,886	3,168
Other non-current liabilities	843	960
Total liabilities exclusive of liabilities under vehicle programs	5,386	5,598
Liabilities under vehicle programs:
Debt	2,062	990
Due to Avis Budget Rental Car Funding (AESOP) LLC-related party	5,813	4,574
Deferred income taxes	2,017	982
Other	307	382
Total Liabilities under vehicle programs	10,199	6,928
Total stockholders' equity	791	412
Total liabilities and stockholders' equity	16,376	12,938
Parent [Member]
Current assets:
Cash and cash equivalents	4	2	2	257
Deferred income taxes	8	8
Other current assets	6	7
Total current assets	18	17
Deferred income taxes	22	36
Other non-current assets	112	124
Intercompany receivables (payables)	246	348
Investment in subsidiaries	661	376
Total assets exclusive of assets under vehicle programs	1,059	901
Assets under vehicle programs:
Total assets	1,059	901
Current liabilities:
Accounts payable and other current liabilities	18	32
Total current liabilities	18	32
Long-term debt	144	345
Other non-current liabilities	106	112
Total liabilities exclusive of liabilities under vehicle programs	268	489
Liabilities under vehicle programs:
Total stockholders' equity	791	412
Total liabilities and stockholders' equity	1,059	901
Subsidiary Issuers [Member]
Current assets:
Cash and cash equivalents	52	234	688	513
Receivables, net		61
Deferred income taxes	65
Other current assets	110	63
Total current assets	227	358
Property and equipment, net	81	70
Deferred income taxes	1,024	177
Other intangibles, net	43	44
Other non-current assets	65	92
Intercompany receivables (payables)	957	1,158
Investment in subsidiaries	1,925	1,769
Total assets exclusive of assets under vehicle programs	4,322	3,668
Assets under vehicle programs:
Vehicles, net	5	6
Total Assets under vehicle programs	5	6
Total assets	4,327	3,674
Current liabilities:
Accounts payable and other current liabilities	789	284
Short-term debt and current portion of long-term debt	46	8
Total current liabilities	835	292
Long-term debt	2,733	2,814
Other non-current liabilities	97	211
Total liabilities exclusive of liabilities under vehicle programs	3,665	3,317
Liabilities under vehicle programs:
Debt		3
Other	1
Total Liabilities under vehicle programs	1	3
Total stockholders' equity	661	354
Total liabilities and stockholders' equity	4,327	3,674
Guarantor Subsidiaries [Member]
Current assets:
Cash and cash equivalents		1	2	3
Receivables, net	183	140
Deferred income taxes	129	129
Other current assets	65	76
Total current assets	377	346
Property and equipment, net	273	295
Deferred income taxes	223	229
Goodwill	74	74
Other intangibles, net	341	342
Other non-current assets	7	5
Intercompany receivables (payables)	(468)	(1,071)
Investment in subsidiaries	3,284	3,192
Total assets exclusive of assets under vehicle programs	4,111	3,412
Assets under vehicle programs:
Vehicles, net	14	4
Total Assets under vehicle programs	14	4
Total assets	4,125	3,416
Current liabilities:
Accounts payable and other current liabilities	43	531
Short-term debt and current portion of long-term debt	3	2
Total current liabilities	46	533
Long-term debt	8	9
Other non-current liabilities	268	262
Total liabilities exclusive of liabilities under vehicle programs	322	804
Liabilities under vehicle programs:
Deferred income taxes	1,878	843
Total Liabilities under vehicle programs	1,878	843
Total stockholders' equity	1,925	1,769
Total liabilities and stockholders' equity	4,125	3,416
Non-Guarantor Subsidiaries [Member]
Current assets:
Cash and cash equivalents	498	297	310	138
Receivables, net	457	306
Deferred income taxes	3	3
Other current assets	346	251
Total current assets	1,304	857
Property and equipment, net	145	128
Deferred income taxes		2
Goodwill	274	279
Other intangibles, net	324	327
Other non-current assets	65	83
Intercompany receivables (payables)	(735)	(435)
Total assets exclusive of assets under vehicle programs	1,377	1,241
Assets under vehicle programs:
Program cash	101	11
Vehicles, net	10,324	8,346
Receivables from vehicle manufacturers and other	575	380
Investment in Avis Budget Rental Car Funding (AESOP) LLC-related party	362	343
Total Assets under vehicle programs	11,362	9,080
Total assets	12,739	10,321
Current liabilities:
Accounts payable and other current liabilities	726	620
Short-term debt and current portion of long-term debt	32	27
Total current liabilities	758	647
Long-term debt	1
Other non-current liabilities	376	375
Total liabilities exclusive of liabilities under vehicle programs	1,135	1,022
Liabilities under vehicle programs:
Debt	2,062	987
Due to Avis Budget Rental Car Funding (AESOP) LLC-related party	5,813	4,574
Deferred income taxes	139	139
Other	306	382
Total Liabilities under vehicle programs	8,320	6,082
Total stockholders' equity	3,284	3,217
Total liabilities and stockholders' equity	12,739	10,321
Eliminations [Member]
Current assets:
Deferred income taxes		(20)
Other current assets		(17)
Total current assets		(37)
Deferred income taxes	(4)
Investment in subsidiaries	(5,870)	(5,337)
Total assets exclusive of assets under vehicle programs	(5,874)	(5,374)
Assets under vehicle programs:
Total assets	(5,874)	(5,374)
Current liabilities:
Accounts payable and other current liabilities		(34)
Total current liabilities		(34)
Other non-current liabilities	(4)
Total liabilities exclusive of liabilities under vehicle programs	(4)	(34)
Liabilities under vehicle programs:
Total stockholders' equity	(5,870)	(5,340)
Total liabilities and stockholders' equity	$ (5,874)	$ (5,374)