Inventory (Tables)

3 Months Ended

Mar. 31, 2019

Inventory Disclosure [Abstract]

Schedule of inventory, current

Inventory was as follows:

	March 31,		December 31,
($ in millions)	2019		2018
Completed unsold VOIs	$	241	$	243
Construction in process		12		9
Land, infrastructure and other		276		275
	$	529	$	527

Schedule of inventory, noncurrent

Inventory was as follows:

	March 31,		December 31,
($ in millions)	2019		2018
Completed unsold VOIs	$	241	$	243
Construction in process		12		9
Land, infrastructure and other		276		275
	$	529	$	527

Schedule of expense incurred when customers upgrade existing ownership to fee-for-service project

Shown below are expenses incurred, recorded in Cost of VOI sales, related to granting credit to customers for their existing ownership when upgrading into fee-for-service projects.

	Three Months Ended March 31,
($ in millions)	2019		2018
Cost of VOI sales related to fee-for-service upgrades	$	9	$	6