Revenues (Details) - USD ($)
$ in Millions

3 Months Ended

Mar. 31, 2018

Mar. 31, 2017

Revenues [Abstract]

Deferred Revenue Rollforward [Table Text Block]

The following table presents changes in the Company’s deferred revenue balances during the three months ended March 31, 2018.

	Balance at January 1, 2018		Revenue deferred		Revenue recognized		Balance at March 31, 2018
Prepaid rentals(a)	$	101	$	367	$	313	$	155
Other deferred revenue(b)	93		52		50		95
Total deferred revenue	$	194	$	419	$	363	$	250

________

^(a)  At March 31, 2018, included in accounts payable and other current liabilities.

^(b)  At March 31, 2018, $39 million included in accounts payable and other current liabilities and $56 million in other non-current liabilities. Non-current amounts are expected to be recognized as revenue within two to three years.

Disaggregation of Revenue by Geography [Table Text Block]

The following table presents the Company’s revenues disaggregated by geography.

	Three Months Ended March 31, 2018
Americas	$	1,348
Europe, Middle East and Africa	447
Asia and Australasia	173
Total revenues	$	1,968

Disaggregation of Revenue by Brand [Table Text Block]

The following table presents the Company’s revenues disaggregated by brand.

	Three Months Ended March 31, 2018
Avis	$	1,145
Budget	642
Other	181
Total revenues	$	1,968

________

Other includes Zipcar, Payless, Apex, Maggiore and FranceCars.

Segment Reporting, Revenue Reconciling Item [Line Items]

Revenues

$ 1,968

$ 1,839

Budget

Segment Reporting, Revenue Reconciling Item [Line Items]

Revenues

642

Avis

Segment Reporting, Revenue Reconciling Item [Line Items]

Revenues

1,145

Other

Segment Reporting, Revenue Reconciling Item [Line Items]

Revenues

181

Americas

Segment Reporting, Revenue Reconciling Item [Line Items]

Revenues

1,348

$ 1,314

Europe, Middle East and Africa

Segment Reporting, Revenue Reconciling Item [Line Items]

Revenues

447

Asia and Australasia

Segment Reporting, Revenue Reconciling Item [Line Items]

Revenues

$ 173