Guarantor And Non-Guarantor Consolidating Condensed Financial Statements (Consolidating Condensed Balance Sheets) (Detail) - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 776	$ 490	$ 527	$ 452
Receivables, net	762	808
Other current assets	837	519
Total current assets	2,375	1,817
Property and equipment, net	684	685
Deferred income taxes	1,642	1,493
Goodwill	1,043	1,007
Other intangibles, net	867	870
Other non-current assets	202	193
Intercompany receivables (payables)	0	0
Investment in subsidiaries	0	0
Total assets exclusive of assets under vehicle programs	6,813	6,065
Assets under vehicle programs:
Program cash	65	225
Vehicles, net	13,322	10,464
Receivables from vehicle manufacturers and other	237	527
Investment in Avis Budget Rental Car Funding (AESOP) LLC—related party	395	362
Total Assets under vehicle programs	14,019	11,578
Total assets	20,832	17,643
Current liabilities:
Accounts payable and other current liabilities	1,849	1,488
Long-term Debt, Current Maturities	26	279
Total current liabilities	1,875	1,767
Long-term debt	3,546	3,244
Other non-current liabilities	768	764
Due to Related Parties, Noncurrent	0	0
Total liabilities exclusive of liabilities under vehicle programs	6,189	5,775
Liabilities under vehicle programs:
Debt	3,486	2,183
Due to Avis Budget Rental Car Funding (AESOP) LLC-related party	7,876	6,695
Deferred income taxes	2,437	2,429
Other	696	340
Total Liabilities under vehicle programs	14,495	11,647
Total stockholders' equity	148	221
Total liabilities and stockholders’ equity	20,832	17,643
Parent Company [Member]
Current assets:
Cash and cash equivalents	3	3	3	4
Receivables, net	0	0
Other current assets	5	2
Total current assets	8	5
Property and equipment, net	0	0
Deferred income taxes	19	20
Goodwill	0	0
Other intangibles, net	0	0
Other non-current assets	76	75
Intercompany receivables (payables)	178	171
Investment in subsidiaries	(42)	42
Total assets exclusive of assets under vehicle programs	239	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	239	313
Current liabilities:
Accounts payable and other current liabilities	21	23
Long-term Debt, Current Maturities	0	0
Total current liabilities	21	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	91	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	148	221
Total liabilities and stockholders’ equity	239	313
Subsidiaries [Member]
Current assets:
Cash and cash equivalents	121	12	81	70
Receivables, net	0	0
Other current assets	83	101
Total current assets	204	113
Property and equipment, net	157	148
Deferred income taxes	1,341	1,219
Goodwill	0	0
Other intangibles, net	28	28
Other non-current assets	23	24
Intercompany receivables (payables)	370	359
Investment in subsidiaries	3,799	3,717
Total assets exclusive of assets under vehicle programs	5,922	5,608
Assets under vehicle programs:
Program cash	0	0
Vehicles, net	25	24
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	26	25
Total assets	5,948	5,633
Current liabilities:
Accounts payable and other current liabilities	223	189
Long-term Debt, Current Maturities	17	264
Total current liabilities	240	453
Long-term debt	2,916	2,730
Other non-current liabilities	87	88
Due to Related Parties, Noncurrent	2,738	2,306
Total liabilities exclusive of liabilities under vehicle programs	5,981	5,577
Liabilities under vehicle programs:
Debt	9	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	9	14
Total stockholders' equity	(42)	42
Total liabilities and stockholders’ equity	5,948	5,633
Guarantor Subsidiaries [Member]
Current assets:
Cash and cash equivalents	0	0	0	0
Receivables, net	225	231
Other current assets	105	90
Total current assets	330	321
Property and equipment, net	324	341
Deferred income taxes	271	268
Goodwill	488	489
Other intangibles, net	491	502
Other non-current assets	17	16
Intercompany receivables (payables)	1,590	1,466
Investment in subsidiaries	3,839	3,698
Total assets exclusive of assets under vehicle programs	7,350	7,101
Assets under vehicle programs:
Program cash	0	0
Vehicles, net	68	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	69	70
Total assets	7,419	7,171
Current liabilities:
Accounts payable and other current liabilities	686	512
Long-term Debt, Current Maturities	3	3
Total current liabilities	689	515
Long-term debt	2	3
Other non-current liabilities	231	253
Due to Related Parties, Noncurrent	370	359
Total liabilities exclusive of liabilities under vehicle programs	1,292	1,130
Liabilities under vehicle programs:
Debt	61	66
Due to Avis Budget Rental Car Funding (AESOP) LLC-related party	0	0
Deferred income taxes	2,267	2,258
Other	0	0
Total Liabilities under vehicle programs	2,328	2,324
Total stockholders' equity	3,799	3,717
Total liabilities and stockholders’ equity	7,419	7,171
Subsidiaries Non Guarantor [Member]
Current assets:
Cash and cash equivalents	652	475	443	378
Receivables, net	537	577
Other current assets	644	326
Total current assets	1,833	1,378
Property and equipment, net	203	196
Deferred income taxes	11	0
Goodwill	555	518
Other intangibles, net	348	340
Other non-current assets	86	78
Intercompany receivables (payables)	972	670
Investment in subsidiaries	0	0
Total assets exclusive of assets under vehicle programs	4,008	3,180
Assets under vehicle programs:
Program cash	65	225
Vehicles, net	13,229	10,370
Receivables from vehicle manufacturers and other	235	526
Investment in Avis Budget Rental Car Funding (AESOP) LLC—related party	395	362
Total Assets under vehicle programs	13,924	11,483
Total assets	17,932	14,663
Current liabilities:
Accounts payable and other current liabilities	919	764
Long-term Debt, Current Maturities	6	12
Total current liabilities	925	776
Long-term debt	628	511
Other non-current liabilities	380	368
Due to Related Parties, Noncurrent	2	1
Total liabilities exclusive of liabilities under vehicle programs	1,935	1,656
Liabilities under vehicle programs:
Debt	3,416	2,103
Due to Avis Budget Rental Car Funding (AESOP) LLC-related party	7,876	6,695
Deferred income taxes	170	171
Other	696	340
Total Liabilities under vehicle programs	12,158	9,309
Total stockholders' equity	3,839	3,698
Total liabilities and stockholders’ equity	17,932	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	0	(14)
Goodwill	0	0
Other intangibles, net	0	0
Other non-current assets	0	0
Intercompany receivables (payables)	(3,110)	(2,666)
Investment in subsidiaries	(7,596)	(7,457)
Total assets exclusive of assets under vehicle programs	(10,706)	(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	(10,706)	(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	0	(14)
Due to Related Parties, Noncurrent	(3,110)	(2,666)
Total liabilities exclusive of liabilities under vehicle programs	(3,110)	(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	(7,596)	(7,457)
Total liabilities and stockholders’ equity	$ (10,706)	$ (10,137)