Guarantor And Non-Guarantor Consolidating Condensed Financial Statements (Consolidating Condensed Balance Sheets) (Detail) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 876	$ 452	$ 854	$ 624
Receivables, net	662	668
Other current assets	644	507
Total current assets	2,182	1,627
Property and equipment, net	687	681
Deferred income taxes	1,556	1,488
Goodwill	1,006	973
Other intangibles, net	918	917
Other non-current assets	243	232
Intercompany receivables (payables)	0	0
Investment in subsidiaries	0	0
Total assets exclusive of assets under vehicle programs	6,592	5,918
Assets under vehicle programs:
Program cash	68	258
Vehicles, net	11,953	10,658
Receivables from vehicle manufacturers and other	334	438
Investment in Avis Budget Rental Car Funding (AESOP) LLC—related party	361	362
Total Assets under vehicle programs	12,716	11,716
Total assets	19,308	17,634
Current liabilities:
Accounts payable and other current liabilities	1,574	1,485
Long-term Debt, Current Maturities	327	26
Total current liabilities	1,901	1,511
Long-term debt	3,511	3,435
Other non-current liabilities	764	734
Due to Related Parties, Noncurrent	0	0
Total liabilities exclusive of liabilities under vehicle programs	6,176	5,680
Liabilities under vehicle programs:
Debt	2,238	2,064
Due to Avis Budget Rental Car Funding (AESOP) LLC-related party	7,623	6,796
Deferred income taxes	2,410	2,367
Other	490	288
Total Liabilities under vehicle programs	12,761	11,515
Total stockholders' equity	371	439
Total liabilities and stockholders’ equity	19,308	17,634
Parent [Member]
Current assets:
Cash and cash equivalents	4	4	2	2
Receivables, net	0	0
Other current assets	3	2
Total current assets	7	6
Property and equipment, net	0	0
Deferred income taxes	20	20
Goodwill	0	0
Other intangibles, net	0	0
Other non-current assets	96	93
Intercompany receivables (payables)	162	160
Investment in subsidiaries	184	272
Total assets exclusive of assets under vehicle programs	469	551
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	469	551
Current liabilities:
Accounts payable and other current liabilities	8	24
Long-term Debt, Current Maturities	0	0
Total current liabilities	8	24
Long-term debt	0	0
Other non-current liabilities	90	88
Due to Related Parties, Noncurrent	0	0
Total liabilities exclusive of liabilities under vehicle programs	98	112
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	371	439
Total liabilities and stockholders’ equity	469	551
Subsidiary Issuers [Member]
Current assets:
Cash and cash equivalents	351	70	552	210
Receivables, net	0	0
Other current assets	102	78
Total current assets	453	148
Property and equipment, net	140	134
Deferred income taxes	1,301	1,246
Goodwill	0	0
Other intangibles, net	29	30
Other non-current assets	13	15
Intercompany receivables (payables)	373	367
Investment in subsidiaries	3,481	3,426
Total assets exclusive of assets under vehicle programs	5,790	5,366
Assets under vehicle programs:
Program cash	0	0
Vehicles, net	19	18
Receivables from vehicle manufacturers and other	1	0
Investment in Avis Budget Rental Car Funding (AESOP) LLC—related party	0	0
Total Assets under vehicle programs	20	18
Total assets	5,810	5,384
Current liabilities:
Accounts payable and other current liabilities	207	180
Long-term Debt, Current Maturities	315	14
Total current liabilities	522	194
Long-term debt	2,984	2,932
Other non-current liabilities	85	85
Due to Related Parties, Noncurrent	2,032	1,897
Total liabilities exclusive of liabilities under vehicle programs	5,623	5,108
Liabilities under vehicle programs:
Debt	3	4
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	3	4
Total stockholders' equity	184	272
Total liabilities and stockholders’ equity	5,810	5,384
Guarantor Subsidiaries [Member]
Current assets:
Cash and cash equivalents	0	0	0	0
Receivables, net	226	212
Other current assets	92	83
Total current assets	318	295
Property and equipment, net	346	345
Deferred income taxes	254	253
Goodwill	487	487
Other intangibles, net	519	525
Other non-current assets	21	17
Intercompany receivables (payables)	1,139	1,070
Investment in subsidiaries	3,732	3,680
Total assets exclusive of assets under vehicle programs	6,816	6,672
Assets under vehicle programs:
Program cash	0	0
Vehicles, net	76	78
Receivables from vehicle manufacturers and other	1	0
Investment in Avis Budget Rental Car Funding (AESOP) LLC—related party	0	0
Total Assets under vehicle programs	77	78
Total assets	6,893	6,750
Current liabilities:
Accounts payable and other current liabilities	511	471
Long-term Debt, Current Maturities	4	5
Total current liabilities	515	476
Long-term debt	2	2
Other non-current liabilities	240	237
Due to Related Parties, Noncurrent	342	336
Total liabilities exclusive of liabilities under vehicle programs	1,099	1,051
Liabilities under vehicle programs:
Debt	72	74
Due to Avis Budget Rental Car Funding (AESOP) LLC-related party	0	0
Deferred income taxes	2,240	2,199
Other	1	0
Total Liabilities under vehicle programs	2,313	2,273
Total stockholders' equity	3,481	3,426
Total liabilities and stockholders’ equity	6,893	6,750
Non-Guarantor Subsidiaries [Member]
Current assets:
Cash and cash equivalents	521	378	300	412
Receivables, net	436	456
Other current assets	447	344
Total current assets	1,404	1,178
Property and equipment, net	201	202
Deferred income taxes	0	0
Goodwill	519	486
Other intangibles, net	370	362
Other non-current assets	113	107
Intercompany receivables (payables)	733	696
Investment in subsidiaries	0	0
Total assets exclusive of assets under vehicle programs	3,340	3,031
Assets under vehicle programs:
Program cash	68	258
Vehicles, net	11,858	10,562
Receivables from vehicle manufacturers and other	332	438
Investment in Avis Budget Rental Car Funding (AESOP) LLC—related party	361	362
Total Assets under vehicle programs	12,619	11,620
Total assets	15,959	14,651
Current liabilities:
Accounts payable and other current liabilities	848	810
Long-term Debt, Current Maturities	8	7
Total current liabilities	856	817
Long-term debt	525	501
Other non-current liabilities	368	355
Due to Related Parties, Noncurrent	33	60
Total liabilities exclusive of liabilities under vehicle programs	1,782	1,733
Liabilities under vehicle programs:
Debt	2,163	1,986
Due to Avis Budget Rental Car Funding (AESOP) LLC-related party	7,623	6,796
Deferred income taxes	170	168
Other	489	288
Total Liabilities under vehicle programs	10,445	9,238
Total stockholders' equity	3,732	3,680
Total liabilities and stockholders’ equity	15,959	14,651
Eliminations [Member]
Current assets:
Cash and cash equivalents	0	0	$ 0	$ 0
Receivables, net	0	0
Other current assets	0	0
Total current assets	0	0
Property and equipment, net	0	0
Deferred income taxes	(19)	(31)
Goodwill	0	0
Other intangibles, net	0	0
Other non-current assets	0	0
Intercompany receivables (payables)	(2,407)	(2,293)
Investment in subsidiaries	(7,397)	(7,378)
Total assets exclusive of assets under vehicle programs	(9,823)	(9,702)
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	(9,823)	(9,702)
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	(19)	(31)
Due to Related Parties, Noncurrent	(2,407)	(2,293)
Total liabilities exclusive of liabilities under vehicle programs	(2,426)	(2,324)
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	(7,397)	(7,378)
Total liabilities and stockholders’ equity	$ (9,823)	$ (9,702)