SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Inventory (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accounting Policies [Abstract]
Increase in carrying value of inventories	$ 10	$ 6	$ 8

Changes in estimates within the relative sales value calculations accounted for as real estate inventory true-ups.

No definition available.

Name:	vac_RealEstateInventoryTrueUps
Namespace Prefix:	vac_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration