Guarantor And Non-Guarantor Consolidating Condensed Financial Statements (Consolidating Condensed Balance Sheets) (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 854	$ 624	$ 841	$ 693
Receivables, net	564	599
Deferred income taxes	142	159
Other current assets	517	456
Total current assets	2,077	1,838
Property and equipment, net	629	638
Deferred income taxes	1,324	1,352
Goodwill	813	842
Other intangibles, net	856	886
Other non-current assets	342	355
Intercompany receivables (payables)	0	0
Investment in subsidiaries	0	0
Total assets exclusive of assets under vehicle programs	6,041	5,911
Assets under vehicle programs:
Program cash	61	119
Vehicles, net	10,777	10,215
Receivables from vehicle manufacturers and other	251	362
Investment in Avis Budget Rental Car Funding (AESOP) LLC—related party	362	362
Total Assets under vehicle programs	11,451	11,058
Total assets	17,492	16,969
Current liabilities:
Accounts payable and other current liabilities	1,489	1,491
Long-term Debt, Current Maturities	244	28
Total current liabilities	1,733	1,519
Long-term debt	3,481	3,392
Other non-current liabilities	732	766
Due to Related Parties, Noncurrent	0	0
Total liabilities exclusive of liabilities under vehicle programs	5,946	5,677
Liabilities under vehicle programs:
Debt	1,503	1,776
Due to Avis Budget Rental Car Funding (AESOP) LLC-related party	6,838	6,340
Deferred income taxes	2,236	2,267
Other	448	244
Total Liabilities under vehicle programs	11,025	10,627
Total stockholders' equity	521	665
Total liabilities and stockholders’ equity	17,492	16,969
Parent [Member]
Current assets:
Cash and cash equivalents	2	2	5	14
Receivables, net	0	0
Deferred income taxes	0	0
Other current assets	2	3
Total current assets	4	5
Property and equipment, net	0	0
Deferred income taxes	20	19
Goodwill	0	0
Other intangibles, net	0	0
Other non-current assets	95	104
Intercompany receivables (payables)	208	205
Investment in subsidiaries	299	468
Total assets exclusive of assets under vehicle programs	626	801
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	626	801
Current liabilities:
Accounts payable and other current liabilities	17	39
Long-term Debt, Current Maturities	0	0
Total current liabilities	17	39
Long-term debt	0	0
Other non-current liabilities	88	97
Due to Related Parties, Noncurrent	0	0
Total liabilities exclusive of liabilities under vehicle programs	105	136
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	521	665
Total liabilities and stockholders’ equity	626	801
Subsidiary Issuers [Member]
Current assets:
Cash and cash equivalents	552	210	459	242
Receivables, net	0	0
Deferred income taxes	9	23
Other current assets	82	86
Total current assets	643	319
Property and equipment, net	118	112
Deferred income taxes	1,196	1,199
Goodwill	0	0
Other intangibles, net	32	38
Other non-current assets	79	81
Intercompany receivables (payables)	350	344
Investment in subsidiaries	3,004	3,072
Total assets exclusive of assets under vehicle programs	5,422	5,165
Assets under vehicle programs:
Program cash	0	0
Vehicles, net	17	7
Receivables from vehicle manufacturers and other	3	1
Investment in Avis Budget Rental Car Funding (AESOP) LLC—related party	0	0
Total Assets under vehicle programs	20	8
Total assets	5,442	5,173
Current liabilities:
Accounts payable and other current liabilities	211	200
Long-term Debt, Current Maturities	236	13
Total current liabilities	447	213
Long-term debt	2,978	2,825
Other non-current liabilities	99	100
Due to Related Parties, Noncurrent	1,614	1,558
Total liabilities exclusive of liabilities under vehicle programs	5,138	4,696
Liabilities under vehicle programs:
Debt	5	9
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	5	9
Total stockholders' equity	299	468
Total liabilities and stockholders’ equity	5,442	5,173
Guarantor Subsidiaries [Member]
Current assets:
Cash and cash equivalents	0	0	0	12
Receivables, net	172	177
Deferred income taxes	102	102
Other current assets	98	78
Total current assets	372	357
Property and equipment, net	323	325
Deferred income taxes	139	138
Goodwill	487	487
Other intangibles, net	539	545
Other non-current assets	22	22
Intercompany receivables (payables)	1,016	978
Investment in subsidiaries	3,191	3,316
Total assets exclusive of assets under vehicle programs	6,089	6,168
Assets under vehicle programs:
Program cash	0	0
Vehicles, net	85	87
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	85	87
Total assets	6,174	6,255
Current liabilities:
Accounts payable and other current liabilities	472	462
Long-term Debt, Current Maturities	5	4
Total current liabilities	477	466
Long-term debt	4	6
Other non-current liabilities	235	232
Due to Related Parties, Noncurrent	318	313
Total liabilities exclusive of liabilities under vehicle programs	1,034	1,017
Liabilities under vehicle programs:
Debt	82	84
Due to Avis Budget Rental Car Funding (AESOP) LLC-related party	0	0
Deferred income taxes	2,054	2,082
Other	0	0
Total Liabilities under vehicle programs	2,136	2,166
Total stockholders' equity	3,004	3,072
Total liabilities and stockholders’ equity	6,174	6,255
Non-Guarantor Subsidiaries [Member]
Current assets:
Cash and cash equivalents	300	412	377	425
Receivables, net	392	422
Deferred income taxes	31	34
Other current assets	335	289
Total current assets	1,058	1,157
Property and equipment, net	188	201
Deferred income taxes	0	0
Goodwill	326	355
Other intangibles, net	285	303
Other non-current assets	146	148
Intercompany receivables (payables)	714	672
Investment in subsidiaries	0	0
Total assets exclusive of assets under vehicle programs	2,717	2,836
Assets under vehicle programs:
Program cash	61	119
Vehicles, net	10,675	10,121
Receivables from vehicle manufacturers and other	248	361
Investment in Avis Budget Rental Car Funding (AESOP) LLC—related party	362	362
Total Assets under vehicle programs	11,346	10,963
Total assets	14,063	13,799
Current liabilities:
Accounts payable and other current liabilities	789	790
Long-term Debt, Current Maturities	3	11
Total current liabilities	792	801
Long-term debt	499	561
Other non-current liabilities	341	341
Due to Related Parties, Noncurrent	356	328
Total liabilities exclusive of liabilities under vehicle programs	1,988	2,031
Liabilities under vehicle programs:
Debt	1,416	1,683
Due to Avis Budget Rental Car Funding (AESOP) LLC-related party	6,838	6,340
Deferred income taxes	182	185
Other	448	244
Total Liabilities under vehicle programs	8,884	8,452
Total stockholders' equity	3,191	3,316
Total liabilities and stockholders’ equity	14,063	13,799
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	(31)	(4)
Goodwill	0	0
Other intangibles, net	0	0
Other non-current assets	0	0
Intercompany receivables (payables)	(2,288)	(2,199)
Investment in subsidiaries	(6,494)	(6,856)
Total assets exclusive of assets under vehicle programs	(8,813)	(9,059)
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	(8,813)	(9,059)
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	(31)	(4)
Due to Related Parties, Noncurrent	(2,288)	(2,199)
Total liabilities exclusive of liabilities under vehicle programs	(2,319)	(2,203)
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	(6,494)	(6,856)
Total liabilities and stockholders’ equity	$ (8,813)	$ (9,059)