Guarantor And Non-Guarantor Consolidating Condensed Financial Statements (Consolidating Condensed Balance Sheets) (Detail) (USD $) In Millions, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 503	$ 606	$ 454	$ 534
Receivables, net	691	553
Deferred income taxes	153	146
Other current assets	599	405
Total current assets	1,946	1,710
Property and equipment, net	560	529
Deferred income taxes	1,329	1,454
Goodwill	652	375
Other intangibles, net	902	731
Other non-current assets	345	320
Intercompany receivables (payables)	0	0
Investment in subsidiaries	0	0
Total assets exclusive of assets under vehicle programs	5,734	5,119
Assets under vehicle programs:
Program cash	139	24
Vehicles, net	12,099	9,274
Receivables from vehicle manufacturers and other	162	439
Investment in Avis Budget Rental Car Funding (AESOP) LLC-related party	362	362
Total Assets under vehicle programs	12,762	10,099
Total assets	18,496	15,218
Current liabilities:
Accounts payable and other current liabilities	1,601	1,421
Long-term Debt, Current Maturities	221	57
Total current liabilities	1,822	1,478
Long-term debt	3,195	2,848
Other non-current liabilities	875	871
Total liabilities exclusive of liabilities under vehicle programs	5,892	5,197
Liabilities under vehicle programs:
Debt	2,371	1,603
Due to Avis Budget Rental Car Funding (AESOP) LLC-related party	6,986	5,203
Deferred income taxes	2,074	2,163
Other	527	295
Total Liabilities under vehicle programs	11,958	9,264
Total stockholders' equity	646	757
Total liabilities and stockholders' equity	18,496	15,218
Parent [Member]
Current assets:
Cash and cash equivalents	7	5	3	2
Receivables, net	0	0
Deferred income taxes	3	3
Other current assets	4	5
Total current assets	14	13
Property and equipment, net	0	0
Deferred income taxes	19	23
Goodwill	0	0
Other intangibles, net	0	0
Other non-current assets	103	109
Intercompany receivables (payables)	140	142
Investment in subsidiaries	557	723
Total assets exclusive of assets under vehicle programs	833	1,010
Assets under vehicle programs:
Program cash	0	0
Vehicles, net	0	0
Receivables from vehicle manufacturers and other	0	0
Investment in Avis Budget Rental Car Funding (AESOP) LLC-related party	0	0
Total Assets under vehicle programs	0	0
Total assets	833	1,010
Current liabilities:
Accounts payable and other current liabilities	15	22
Long-term Debt, Current Maturities	0	0
Total current liabilities	15	22
Long-term debt	75	128
Other non-current liabilities	97	103
Total liabilities exclusive of liabilities under vehicle programs	187	253
Liabilities under vehicle programs:
Debt	0	0
Due to Avis Budget Rental Car Funding (AESOP) LLC-related party	0	0
Deferred income taxes	0	0
Other	0	0
Total Liabilities under vehicle programs	0	0
Total stockholders' equity	646	757
Total liabilities and stockholders' equity	833	1,010
Subsidiary Issuers [Member]
Current assets:
Cash and cash equivalents	64	102	39	234
Receivables, net	0	0
Deferred income taxes	0	1
Other current assets	97	73
Total current assets	161	176
Property and equipment, net	97	90
Deferred income taxes	1,161	1,216
Goodwill	0	0
Other intangibles, net	42	43
Other non-current assets	83	80
Intercompany receivables (payables)	54	141
Investment in subsidiaries	2,582	2,030
Total assets exclusive of assets under vehicle programs	4,180	3,776
Assets under vehicle programs:
Program cash	0	0
Vehicles, net	6	7
Receivables from vehicle manufacturers and other	0	0
Investment in Avis Budget Rental Car Funding (AESOP) LLC-related party	0	0
Total Assets under vehicle programs	6	7
Total assets	4,186	3,783
Current liabilities:
Accounts payable and other current liabilities	251	250
Long-term Debt, Current Maturities	166	13
Total current liabilities	417	263
Long-term debt	3,113	2,712
Other non-current liabilities	93	79
Total liabilities exclusive of liabilities under vehicle programs	3,623	3,054
Liabilities under vehicle programs:
Debt	6	4
Due to Avis Budget Rental Car Funding (AESOP) LLC-related party	0	0
Deferred income taxes	0	0
Other	0	2
Total Liabilities under vehicle programs	6	6
Total stockholders' equity	557	723
Total liabilities and stockholders' equity	4,186	3,783
Guarantor Subsidiaries [Member]
Current assets:
Cash and cash equivalents	0	0	2	1
Receivables, net	207	156
Deferred income taxes	142	138
Other current assets	94	81
Total current assets	443	375
Property and equipment, net	306	276
Deferred income taxes	156	223
Goodwill	348	74
Other intangibles, net	527	341
Other non-current assets	19	14
Intercompany receivables (payables)	344	174
Investment in subsidiaries	3,220	3,293
Total assets exclusive of assets under vehicle programs	5,363	4,770
Assets under vehicle programs:
Program cash	0	0
Vehicles, net	10	13
Receivables from vehicle manufacturers and other	0	0
Investment in Avis Budget Rental Car Funding (AESOP) LLC-related party	0	0
Total Assets under vehicle programs	10	13
Total assets	5,373	4,783
Current liabilities:
Accounts payable and other current liabilities	611	490
Long-term Debt, Current Maturities	3	3
Total current liabilities	614	493
Long-term debt	7	8
Other non-current liabilities	275	277
Total liabilities exclusive of liabilities under vehicle programs	896	778
Liabilities under vehicle programs:
Debt	0	0
Due to Avis Budget Rental Car Funding (AESOP) LLC-related party	0	0
Deferred income taxes	1,895	1,975
Other	0	0
Total Liabilities under vehicle programs	1,895	1,975
Total stockholders' equity	2,582	2,030
Total liabilities and stockholders' equity	5,373	4,783
Non-Guarantor Subsidiaries [Member]
Current assets:
Cash and cash equivalents	432	499	410	297
Receivables, net	484	397
Deferred income taxes	10	4
Other current assets	404	246
Total current assets	1,330	1,146
Property and equipment, net	157	163
Deferred income taxes	0	0
Goodwill	304	301
Other intangibles, net	333	347
Other non-current assets	140	117
Intercompany receivables (payables)	(538)	(457)
Investment in subsidiaries	0	0
Total assets exclusive of assets under vehicle programs	1,726	1,617
Assets under vehicle programs:
Program cash	139	24
Vehicles, net	12,083	9,254
Receivables from vehicle manufacturers and other	162	439
Investment in Avis Budget Rental Car Funding (AESOP) LLC-related party	362	362
Total Assets under vehicle programs	12,746	10,079
Total assets	14,472	11,696
Current liabilities:
Accounts payable and other current liabilities	726	659
Long-term Debt, Current Maturities	52	41
Total current liabilities	778	700
Long-term debt	0	0
Other non-current liabilities	417	420
Total liabilities exclusive of liabilities under vehicle programs	1,195	1,120
Liabilities under vehicle programs:
Debt	2,365	1,599
Due to Avis Budget Rental Car Funding (AESOP) LLC-related party	6,986	5,203
Deferred income taxes	179	188
Other	527	293
Total Liabilities under vehicle programs	10,057	7,283
Total stockholders' equity	3,220	3,293
Total liabilities and stockholders' equity	14,472	11,696
Eliminations [Member]
Current assets:
Cash and cash equivalents	0	0	0	0
Receivables, net	0	0
Deferred income taxes	(2)	0
Other current assets	0	0
Total current assets	(2)	0
Property and equipment, net	0	0
Deferred income taxes	(7)	(8)
Goodwill	0	0
Other intangibles, net	0	0
Other non-current assets	0	0
Intercompany receivables (payables)	0	0
Investment in subsidiaries	(6,359)	(6,046)
Total assets exclusive of assets under vehicle programs	(6,368)	(6,054)
Assets under vehicle programs:
Program cash	0	0
Vehicles, net	0	0
Receivables from vehicle manufacturers and other	0	0
Investment in Avis Budget Rental Car Funding (AESOP) LLC-related party	0	0
Total Assets under vehicle programs	0	0
Total assets	(6,368)	(6,054)
Current liabilities:
Accounts payable and other current liabilities	(2)	0
Long-term Debt, Current Maturities	0	0
Total current liabilities	(2)	0
Long-term debt	0	0
Other non-current liabilities	(7)	(8)
Total liabilities exclusive of liabilities under vehicle programs	(9)	(8)
Liabilities under vehicle programs:
Debt	0	0
Due to Avis Budget Rental Car Funding (AESOP) LLC-related party	0	0
Deferred income taxes	0	0
Other	0	0
Total Liabilities under vehicle programs	0	0
Total stockholders' equity	(6,359)	(6,046)
Total liabilities and stockholders' equity	$ (6,368)	$ (6,054)