Guarantor And Non-Guarantor Consolidating Condensed Financial Statements (Consolidating Condensed Balance Sheets) (Detail) - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 923	$ 490	$ 876	$ 452
Receivables, net	718	808
Other current assets	651	519
Total current assets	2,292	1,817
Property and equipment, net	684	685
Deferred income taxes	1,631	1,493
Goodwill	1,013	1,007
Other intangibles, net	859	870
Other non-current assets	195	193
Intercompany receivables (payables)	0	0
Investment in subsidiaries	0	0
Total assets exclusive of assets under vehicle programs	6,674	6,065
Assets under vehicle programs:
Program cash	142	225
Vehicles, net	11,486	10,464
Receivables from vehicle manufacturers and other	281	527
Investment in Avis Budget Rental Car Funding (AESOP) LLC—related party	395	362
Total Assets under vehicle programs	12,304	11,578
Total assets	18,978	17,643
Current liabilities:
Accounts payable and other current liabilities	1,589	1,488
Long-term Debt, Current Maturities	474	279
Total current liabilities	2,063	1,767
Long-term debt	3,506	3,244
Other non-current liabilities	747	764
Due to Related Parties, Noncurrent	0	0
Total liabilities exclusive of liabilities under vehicle programs	6,316	5,775
Liabilities under vehicle programs:
Debt	2,395	2,183
Due to Avis Budget Rental Car Funding (AESOP) LLC-related party	7,106	6,695
Deferred income taxes	2,453	2,429
Other	567	340
Total Liabilities under vehicle programs	12,521	11,647
Total stockholders' equity	141	221
Total liabilities and stockholders’ equity	18,978	17,643
Parent [Member]
Current assets:
Cash and cash equivalents	2	3	4	4
Receivables, net	0	0
Other current assets	2	2
Total current assets	4	5
Property and equipment, net	0	0
Deferred income taxes	19	20
Goodwill	0	0
Other intangibles, net	0	0
Other non-current assets	75	75
Intercompany receivables (payables)	175	171
Investment in subsidiaries	(49)	42
Total assets exclusive of assets under vehicle programs	224	313
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	224	313
Current liabilities:
Accounts payable and other current liabilities	13	23
Long-term Debt, Current Maturities	0	0
Total current liabilities	13	23
Long-term debt	0	0
Other non-current liabilities	70	69
Due to Related Parties, Noncurrent	0	0
Total liabilities exclusive of liabilities under vehicle programs	83	92
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	141	221
Total liabilities and stockholders’ equity	224	313
Subsidiary Issuers [Member]
Current assets:
Cash and cash equivalents	280	12	351	70
Receivables, net	0	0
Other current assets	103	101
Total current assets	383	113
Property and equipment, net	155	148
Deferred income taxes	1,348	1,219
Goodwill	0	0
Other intangibles, net	28	28
Other non-current assets	26	24
Intercompany receivables (payables)	365	359
Investment in subsidiaries	3,679	3,717
Total assets exclusive of assets under vehicle programs	5,984	5,608
Assets under vehicle programs:
Program cash	0	0
Vehicles, net	37	24
Receivables from vehicle manufacturers and other	2	1
Investment in Avis Budget Rental Car Funding (AESOP) LLC—related party	0	0
Total Assets under vehicle programs	39	25
Total assets	6,023	5,633
Current liabilities:
Accounts payable and other current liabilities	195	189
Long-term Debt, Current Maturities	266	264
Total current liabilities	461	453
Long-term debt	2,918	2,730
Other non-current liabilities	86	88
Due to Related Parties, Noncurrent	2,597	2,306
Total liabilities exclusive of liabilities under vehicle programs	6,062	5,577
Liabilities under vehicle programs:
Debt	10	14
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	10	14
Total stockholders' equity	(49)	42
Total liabilities and stockholders’ equity	6,023	5,633
Guarantor Subsidiaries [Member]
Current assets:
Cash and cash equivalents	0	0	0	0
Receivables, net	216	231
Other current assets	110	90
Total current assets	326	321
Property and equipment, net	332	341
Deferred income taxes	272	268
Goodwill	489	489
Other intangibles, net	496	502
Other non-current assets	16	16
Intercompany receivables (payables)	1,478	1,466
Investment in subsidiaries	3,723	3,698
Total assets exclusive of assets under vehicle programs	7,132	7,101
Assets under vehicle programs:
Program cash	0	0
Vehicles, net	69	70
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	70	70
Total assets	7,202	7,171
Current liabilities:
Accounts payable and other current liabilities	568	512
Long-term Debt, Current Maturities	3	3
Total current liabilities	571	515
Long-term debt	3	3
Other non-current liabilities	237	253
Due to Related Parties, Noncurrent	365	359
Total liabilities exclusive of liabilities under vehicle programs	1,176	1,130
Liabilities under vehicle programs:
Debt	64	66
Due to Avis Budget Rental Car Funding (AESOP) LLC-related party	0	0
Deferred income taxes	2,283	2,258
Other	0	0
Total Liabilities under vehicle programs	2,347	2,324
Total stockholders' equity	3,679	3,717
Total liabilities and stockholders’ equity	7,202	7,171
Non-Guarantor Subsidiaries [Member]
Current assets:
Cash and cash equivalents	641	475	521	378
Receivables, net	502	577
Other current assets	436	326
Total current assets	1,579	1,378
Property and equipment, net	197	196
Deferred income taxes	0	0
Goodwill	524	518
Other intangibles, net	335	340
Other non-current assets	78	78
Intercompany receivables (payables)	945	670
Investment in subsidiaries	0	0
Total assets exclusive of assets under vehicle programs	3,658	3,180
Assets under vehicle programs:
Program cash	142	225
Vehicles, net	11,380	10,370
Receivables from vehicle manufacturers and other	278	526
Investment in Avis Budget Rental Car Funding (AESOP) LLC—related party	395	362
Total Assets under vehicle programs	12,195	11,483
Total assets	15,853	14,663
Current liabilities:
Accounts payable and other current liabilities	813	764
Long-term Debt, Current Maturities	205	12
Total current liabilities	1,018	776
Long-term debt	585	511
Other non-current liabilities	362	368
Due to Related Parties, Noncurrent	1	1
Total liabilities exclusive of liabilities under vehicle programs	1,966	1,656
Liabilities under vehicle programs:
Debt	2,321	2,103
Due to Avis Budget Rental Car Funding (AESOP) LLC-related party	7,106	6,695
Deferred income taxes	170	171
Other	567	340
Total Liabilities under vehicle programs	10,164	9,309
Total stockholders' equity	3,723	3,698
Total liabilities and stockholders’ equity	15,853	14,663
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	(8)	(14)
Goodwill	0	0
Other intangibles, net	0	0
Other non-current assets	0	0
Intercompany receivables (payables)	(2,963)	(2,666)
Investment in subsidiaries	(7,353)	(7,457)
Total assets exclusive of assets under vehicle programs	(10,324)	(10,137)
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	(10,324)	(10,137)
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	(8)	(14)
Due to Related Parties, Noncurrent	(2,963)	(2,666)
Total liabilities exclusive of liabilities under vehicle programs	(2,971)	(2,680)
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	(7,353)	(7,457)
Total liabilities and stockholders’ equity	$ (10,324)	$ (10,137)