Guarantor And Non-Guarantor Consolidating Condensed Financial Statements (Consolidating Condensed Balance Sheets) (Detail) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 985	$ 452	$ 585	$ 624
Receivables, net	822	668
Other current assets	635	507
Total current assets	2,442	1,627
Property and equipment, net	671	681
Deferred income taxes	1,443	1,488
Goodwill	1,013	973
Other intangibles, net	885	917
Other non-current assets	224	232
Intercompany receivables (payables)	0	0
Investment in subsidiaries	0	0
Total assets exclusive of assets under vehicle programs	6,678	5,918
Assets under vehicle programs:
Program cash	126	258
Vehicles, net	11,724	10,658
Receivables from vehicle manufacturers and other	586	438
Investment in Avis Budget Rental Car Funding (AESOP) LLC—related party	361	362
Total Assets under vehicle programs	12,797	11,716
Total assets	19,475	17,634
Current liabilities:
Accounts payable and other current liabilities	1,713	1,485
Long-term Debt, Current Maturities	338	26
Total current liabilities	2,051	1,511
Long-term debt	3,528	3,435
Other non-current liabilities	763	734
Due to Related Parties, Noncurrent	0	0
Total liabilities exclusive of liabilities under vehicle programs	6,342	5,680
Liabilities under vehicle programs:
Debt	2,966	2,064
Due to Avis Budget Rental Car Funding (AESOP) LLC-related party	7,134	6,796
Deferred income taxes	2,370	2,367
Other	189	288
Total Liabilities under vehicle programs	12,659	11,515
Total stockholders' equity	474	439
Total liabilities and stockholders’ equity	19,475	17,634
Parent [Member]
Current assets:
Cash and cash equivalents	3	4	4	2
Receivables, net	0	0
Other current assets	2	2
Total current assets	5	6
Property and equipment, net	0	0
Deferred income taxes	20	20
Goodwill	0	0
Other intangibles, net	0	0
Other non-current assets	72	93
Intercompany receivables (payables)	169	160
Investment in subsidiaries	295	272
Total assets exclusive of assets under vehicle programs	561	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	561	551
Current liabilities:
Accounts payable and other current liabilities	19	24
Long-term Debt, Current Maturities	0	0
Total current liabilities	19	24
Long-term debt	0	0
Other non-current liabilities	68	88
Due to Related Parties, Noncurrent	0	0
Total liabilities exclusive of liabilities under vehicle programs	87	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	474	439
Total liabilities and stockholders’ equity	561	551
Subsidiary Issuers [Member]
Current assets:
Cash and cash equivalents	526	70	239	210
Receivables, net	1	0
Other current assets	94	78
Total current assets	621	148
Property and equipment, net	139	134
Deferred income taxes	1,183	1,246
Goodwill	0	0
Other intangibles, net	29	30
Other non-current assets	17	15
Intercompany receivables (payables)	353	367
Investment in subsidiaries	3,837	3,426
Total assets exclusive of assets under vehicle programs	6,179	5,366
Assets under vehicle programs:
Program cash	0	0
Vehicles, net	15	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	16	18
Total assets	6,195	5,384
Current liabilities:
Accounts payable and other current liabilities	211	180
Long-term Debt, Current Maturities	16	14
Total current liabilities	227	194
Long-term debt	2,985	2,932
Other non-current liabilities	90	85
Due to Related Parties, Noncurrent	2,597	1,897
Total liabilities exclusive of liabilities under vehicle programs	5,899	5,108
Liabilities under vehicle programs:
Debt	1	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	1	4
Total stockholders' equity	295	272
Total liabilities and stockholders’ equity	6,195	5,384
Guarantor Subsidiaries [Member]
Current assets:
Cash and cash equivalents	0	0	0	0
Receivables, net	242	212
Other current assets	84	83
Total current assets	326	295
Property and equipment, net	338	345
Deferred income taxes	256	253
Goodwill	489	487
Other intangibles, net	506	525
Other non-current assets	19	17
Intercompany receivables (payables)	1,298	1,070
Investment in subsidiaries	3,939	3,680
Total assets exclusive of assets under vehicle programs	7,171	6,672
Assets under vehicle programs:
Program cash	0	0
Vehicles, net	71	78
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	71	78
Total assets	7,242	6,750
Current liabilities:
Accounts payable and other current liabilities	541	471
Long-term Debt, Current Maturities	4	5
Total current liabilities	545	476
Long-term debt	2	2
Other non-current liabilities	243	237
Due to Related Parties, Noncurrent	353	336
Total liabilities exclusive of liabilities under vehicle programs	1,143	1,051
Liabilities under vehicle programs:
Debt	68	74
Due to Avis Budget Rental Car Funding (AESOP) LLC-related party	0	0
Deferred income taxes	2,194	2,199
Other	0	0
Total Liabilities under vehicle programs	2,262	2,273
Total stockholders' equity	3,837	3,426
Total liabilities and stockholders’ equity	7,242	6,750
Non-Guarantor Subsidiaries [Member]
Current assets:
Cash and cash equivalents	456	378	342	412
Receivables, net	579	456
Other current assets	455	344
Total current assets	1,490	1,178
Property and equipment, net	194	202
Deferred income taxes	0	0
Goodwill	524	486
Other intangibles, net	350	362
Other non-current assets	116	107
Intercompany receivables (payables)	1,131	696
Investment in subsidiaries	0	0
Total assets exclusive of assets under vehicle programs	3,805	3,031
Assets under vehicle programs:
Program cash	126	258
Vehicles, net	11,638	10,562
Receivables from vehicle manufacturers and other	585	438
Investment in Avis Budget Rental Car Funding (AESOP) LLC—related party	361	362
Total Assets under vehicle programs	12,710	11,620
Total assets	16,515	14,651
Current liabilities:
Accounts payable and other current liabilities	942	810
Long-term Debt, Current Maturities	318	7
Total current liabilities	1,260	817
Long-term debt	541	501
Other non-current liabilities	378	355
Due to Related Parties, Noncurrent	1	60
Total liabilities exclusive of liabilities under vehicle programs	2,180	1,733
Liabilities under vehicle programs:
Debt	2,897	1,986
Due to Avis Budget Rental Car Funding (AESOP) LLC-related party	7,134	6,796
Deferred income taxes	176	168
Other	189	288
Total Liabilities under vehicle programs	10,396	9,238
Total stockholders' equity	3,939	3,680
Total liabilities and stockholders’ equity	16,515	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	(16)	(31)
Goodwill	0	0
Other intangibles, net	0	0
Other non-current assets	0	0
Intercompany receivables (payables)	(2,951)	(2,293)
Investment in subsidiaries	(8,071)	(7,378)
Total assets exclusive of assets under vehicle programs	(11,038)	(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	(11,038)	(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	(16)	(31)
Due to Related Parties, Noncurrent	(2,951)	(2,293)
Total liabilities exclusive of liabilities under vehicle programs	(2,967)	(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	(8,071)	(7,378)
Total liabilities and stockholders’ equity	$ (11,038)	$ (9,702)