Guarantor And Non-Guarantor Consolidating Condensed Financial Statements (Consolidating Condensed Balance Sheets) (Detail) (USD $) In Millions, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 589	$ 606	$ 554	$ 534
Receivables, net	681	553
Deferred income taxes	163	146
Other current assets	575	405
Total current assets	2,008	1,710
Property and equipment, net	570	529
Deferred income taxes	1,351	1,454
Goodwill	689	375
Other intangibles, net	928	731
Other non-current assets	375	320
Intercompany receivables (payables)	0	0
Investment in subsidiaries	0	0
Total assets exclusive of assets under vehicle programs	5,921	5,119
Assets under vehicle programs:
Program cash	210	24
Vehicles, net	10,805	9,274
Receivables from vehicle manufacturers and other	506	439
Investment in Avis Budget Rental Car Funding (AESOP) LLC-related party	362	362
Total Assets under vehicle programs	11,883	10,099
Total assets	17,804	15,218
Current liabilities:
Accounts payable and other current liabilities	1,680	1,421
Long-term Debt, Current Maturities	181	57
Total current liabilities	1,861	1,478
Long-term debt	3,203	2,848
Other non-current liabilities	878	871
Total liabilities exclusive of liabilities under vehicle programs	5,942	5,197
Liabilities under vehicle programs:
Debt	2,508	1,603
Due to Avis Budget Rental Car Funding (AESOP) LLC-related party	6,128	5,203
Deferred income taxes	2,190	2,163
Other	232	295
Total Liabilities under vehicle programs	11,058	9,264
Total stockholders' equity	804	757
Total liabilities and stockholders' equity	17,804	15,218
Parent [Member]
Current assets:
Cash and cash equivalents	7	5	4	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	106	109
Intercompany receivables (payables)	144	142
Investment in subsidiaries	716	723
Total assets exclusive of assets under vehicle programs	999	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	999	1,010
Current liabilities:
Accounts payable and other current liabilities	22	22
Long-term Debt, Current Maturities	0	0
Total current liabilities	22	22
Long-term debt	75	128
Other non-current liabilities	98	103
Total liabilities exclusive of liabilities under vehicle programs	195	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	804	757
Total liabilities and stockholders' equity	999	1,010
Subsidiary Issuers [Member]
Current assets:
Cash and cash equivalents	34	102	52	234
Receivables, net	0	0
Deferred income taxes	1	1
Other current assets	84	73
Total current assets	119	176
Property and equipment, net	96	90
Deferred income taxes	1,200	1,216
Goodwill	0	0
Other intangibles, net	42	43
Other non-current assets	101	80
Intercompany receivables (payables)	(442)	141
Investment in subsidiaries	2,871	2,030
Total assets exclusive of assets under vehicle programs	3,987	3,776
Assets under vehicle programs:
Program cash	0	0
Vehicles, net	23	7
Receivables from vehicle manufacturers and other	2	0
Investment in Avis Budget Rental Car Funding (AESOP) LLC-related party	0	0
Total Assets under vehicle programs	25	7
Total assets	4,012	3,783
Current liabilities:
Accounts payable and other current liabilities	253	250
Long-term Debt, Current Maturities	167	13
Total current liabilities	420	263
Long-term debt	2,783	2,712
Other non-current liabilities	89	79
Total liabilities exclusive of liabilities under vehicle programs	3,292	3,054
Liabilities under vehicle programs:
Debt	4	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	4	6
Total stockholders' equity	716	723
Total liabilities and stockholders' equity	4,012	3,783
Guarantor Subsidiaries [Member]
Current assets:
Cash and cash equivalents	10	0	0	1
Receivables, net	181	156
Deferred income taxes	142	138
Other current assets	86	81
Total current assets	419	375
Property and equipment, net	307	276
Deferred income taxes	139	223
Goodwill	349	74
Other intangibles, net	522	341
Other non-current assets	19	14
Intercompany receivables (payables)	522	174
Investment in subsidiaries	3,427	3,293
Total assets exclusive of assets under vehicle programs	5,704	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	5,714	4,783
Current liabilities:
Accounts payable and other current liabilities	595	490
Long-term Debt, Current Maturities	3	3
Total current liabilities	598	493
Long-term debt	7	8
Other non-current liabilities	252	277
Total liabilities exclusive of liabilities under vehicle programs	857	778
Liabilities under vehicle programs:
Debt	0	0
Due to Avis Budget Rental Car Funding (AESOP) LLC-related party	0	0
Deferred income taxes	1,986	1,975
Other	0	0
Total Liabilities under vehicle programs	1,986	1,975
Total stockholders' equity	2,871	2,030
Total liabilities and stockholders' equity	5,714	4,783
Non-Guarantor Subsidiaries [Member]
Current assets:
Cash and cash equivalents	538	499	498	297
Receivables, net	500	397
Deferred income taxes	17	4
Other current assets	401	246
Total current assets	1,456	1,146
Property and equipment, net	167	163
Deferred income taxes	0	0
Goodwill	340	301
Other intangibles, net	364	347
Other non-current assets	149	117
Intercompany receivables (payables)	(224)	(457)
Investment in subsidiaries	0	0
Total assets exclusive of assets under vehicle programs	2,252	1,617
Assets under vehicle programs:
Program cash	210	24
Vehicles, net	10,772	9,254
Receivables from vehicle manufacturers and other	504	439
Investment in Avis Budget Rental Car Funding (AESOP) LLC-related party	362	362
Total Assets under vehicle programs	11,848	10,079
Total assets	14,100	11,696
Current liabilities:
Accounts payable and other current liabilities	810	659
Long-term Debt, Current Maturities	11	41
Total current liabilities	821	700
Long-term debt	338	0
Other non-current liabilities	446	420
Total liabilities exclusive of liabilities under vehicle programs	1,605	1,120
Liabilities under vehicle programs:
Debt	2,504	1,599
Due to Avis Budget Rental Car Funding (AESOP) LLC-related party	6,128	5,203
Deferred income taxes	204	188
Other	232	293
Total Liabilities under vehicle programs	9,068	7,283
Total stockholders' equity	3,427	3,293
Total liabilities and stockholders' equity	14,100	11,696
Eliminations [Member]
Current assets:
Cash and cash equivalents	0	0	0	0
Receivables, net	0	0
Deferred income taxes	0	0
Other current assets	0	0
Total current assets	0	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	(7,014)	(6,046)
Total assets exclusive of assets under vehicle programs	(7,021)	(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	(7,021)	(6,054)
Current liabilities:
Accounts payable and other current liabilities	0	0
Long-term Debt, Current Maturities	0	0
Total current liabilities	0	0
Long-term debt	0	0
Other non-current liabilities	(7)	(8)
Total liabilities exclusive of liabilities under vehicle programs	(7)	(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	(7,014)	(6,046)
Total liabilities and stockholders' equity	$ (7,021)	$ (6,054)