Guarantor And Non-Guarantor Consolidating Condensed Financial Statements (Consolidating Condensed Balance Sheets) (Detail) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 585	$ 624	$ 713	$ 693
Receivables, net	705	599
Deferred income taxes	144	159
Other current assets	684	456
Total current assets	2,118	1,838
Property and equipment, net	642	638
Deferred income taxes	1,136	1,352
Goodwill	964	842
Other intangibles, net	922	886
Other non-current assets	334	355
Intercompany receivables (payables)	0	0
Investment in subsidiaries	0	0
Total assets exclusive of assets under vehicle programs	6,116	5,911
Assets under vehicle programs:
Program cash	183	119
Vehicles, net	11,604	10,215
Receivables from vehicle manufacturers and other	637	362
Investment in Avis Budget Rental Car Funding (AESOP) LLC—related party	362	362
Total Assets under vehicle programs	12,786	11,058
Total assets	18,902	16,969
Current liabilities:
Accounts payable and other current liabilities	1,764	1,491
Long-term Debt, Current Maturities	27	28
Total current liabilities	1,791	1,519
Long-term debt	3,505	3,392
Other non-current liabilities	741	766
Due to Related Parties, Noncurrent	0	0
Total liabilities exclusive of liabilities under vehicle programs	6,037	5,677
Liabilities under vehicle programs:
Debt	2,757	1,776
Due to Avis Budget Rental Car Funding (AESOP) LLC-related party	7,239	6,340
Deferred income taxes	2,066	2,267
Other	203	244
Total Liabilities under vehicle programs	12,265	10,627
Total stockholders' equity	600	665
Total liabilities and stockholders’ equity	18,902	16,969
Parent [Member]
Current assets:
Cash and cash equivalents	4	2	1	14
Receivables, net	0	0
Deferred income taxes	0	0
Other current assets	3	3
Total current assets	7	5
Property and equipment, net	0	0
Deferred income taxes	21	19
Goodwill	0	0
Other intangibles, net	0	0
Other non-current assets	92	104
Intercompany receivables (payables)	156	205
Investment in subsidiaries	443	468
Total assets exclusive of assets under vehicle programs	719	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	719	801
Current liabilities:
Accounts payable and other current liabilities	30	39
Long-term Debt, Current Maturities	0	0
Total current liabilities	30	39
Long-term debt	0	0
Other non-current liabilities	89	97
Due to Related Parties, Noncurrent	0	0
Total liabilities exclusive of liabilities under vehicle programs	119	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	600	665
Total liabilities and stockholders’ equity	719	801
Subsidiary Issuers [Member]
Current assets:
Cash and cash equivalents	239	210	409	242
Receivables, net	0	0
Deferred income taxes	10	23
Other current assets	88	86
Total current assets	337	319
Property and equipment, net	120	112
Deferred income taxes	1,020	1,199
Goodwill	0	0
Other intangibles, net	32	38
Other non-current assets	61	81
Intercompany receivables (payables)	361	344
Investment in subsidiaries	3,383	3,072
Total assets exclusive of assets under vehicle programs	5,314	5,165
Assets under vehicle programs:
Program cash	0	0
Vehicles, net	19	7
Receivables from vehicle manufacturers and other	1	1
Investment in Avis Budget Rental Car Funding (AESOP) LLC—related party	0	0
Total Assets under vehicle programs	20	8
Total assets	5,334	5,173
Current liabilities:
Accounts payable and other current liabilities	205	200
Long-term Debt, Current Maturities	13	13
Total current liabilities	218	213
Long-term debt	2,974	2,825
Other non-current liabilities	87	100
Due to Related Parties, Noncurrent	1,611	1,558
Total liabilities exclusive of liabilities under vehicle programs	4,890	4,696
Liabilities under vehicle programs:
Debt	1	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	1	9
Total stockholders' equity	443	468
Total liabilities and stockholders’ equity	5,334	5,173
Guarantor Subsidiaries [Member]
Current assets:
Cash and cash equivalents	0	0	0	12
Receivables, net	197	177
Deferred income taxes	102	102
Other current assets	89	78
Total current assets	388	357
Property and equipment, net	331	325
Deferred income taxes	141	138
Goodwill	487	487
Other intangibles, net	526	545
Other non-current assets	23	22
Intercompany receivables (payables)	667	978
Investment in subsidiaries	3,802	3,316
Total assets exclusive of assets under vehicle programs	6,365	6,168
Assets under vehicle programs:
Program cash	0	0
Vehicles, net	81	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	81	87
Total assets	6,446	6,255
Current liabilities:
Accounts payable and other current liabilities	518	462
Long-term Debt, Current Maturities	5	4
Total current liabilities	523	466
Long-term debt	2	6
Other non-current liabilities	232	232
Due to Related Parties, Noncurrent	330	313
Total liabilities exclusive of liabilities under vehicle programs	1,087	1,017
Liabilities under vehicle programs:
Debt	78	84
Due to Avis Budget Rental Car Funding (AESOP) LLC-related party	0	0
Deferred income taxes	1,898	2,082
Other	0	0
Total Liabilities under vehicle programs	1,976	2,166
Total stockholders' equity	3,383	3,072
Total liabilities and stockholders’ equity	6,446	6,255
Non-Guarantor Subsidiaries [Member]
Current assets:
Cash and cash equivalents	342	412	303	425
Receivables, net	508	422
Deferred income taxes	32	34
Other current assets	504	289
Total current assets	1,386	1,157
Property and equipment, net	191	201
Deferred income taxes	0	0
Goodwill	477	355
Other intangibles, net	364	303
Other non-current assets	158	148
Intercompany receivables (payables)	814	672
Investment in subsidiaries	0	0
Total assets exclusive of assets under vehicle programs	3,390	2,836
Assets under vehicle programs:
Program cash	183	119
Vehicles, net	11,504	10,121
Receivables from vehicle manufacturers and other	636	361
Investment in Avis Budget Rental Car Funding (AESOP) LLC—related party	362	362
Total Assets under vehicle programs	12,685	10,963
Total assets	16,075	13,799
Current liabilities:
Accounts payable and other current liabilities	1,011	790
Long-term Debt, Current Maturities	9	11
Total current liabilities	1,020	801
Long-term debt	529	561
Other non-current liabilities	379	341
Due to Related Parties, Noncurrent	57	328
Total liabilities exclusive of liabilities under vehicle programs	1,985	2,031
Liabilities under vehicle programs:
Debt	2,678	1,683
Due to Avis Budget Rental Car Funding (AESOP) LLC-related party	7,239	6,340
Deferred income taxes	168	185
Other	203	244
Total Liabilities under vehicle programs	10,288	8,452
Total stockholders' equity	3,802	3,316
Total liabilities and stockholders’ equity	16,075	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	(46)	(4)
Goodwill	0	0
Other intangibles, net	0	0
Other non-current assets	0	0
Intercompany receivables (payables)	(1,998)	(2,199)
Investment in subsidiaries	(7,628)	(6,856)
Total assets exclusive of assets under vehicle programs	(9,672)	(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	(9,672)	(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	(46)	(4)
Due to Related Parties, Noncurrent	(1,998)	(2,199)
Total liabilities exclusive of liabilities under vehicle programs	(2,044)	(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	(7,628)	(6,856)
Total liabilities and stockholders’ equity	$ (9,672)	$ (9,059)