ACQUISITIONS AND DISPOSITIONS - Intangible Assets (Details) - ILG $ in Millions	Sep. 01, 2018 USD ($)
Business Acquisition [Line Items]
Intangible assets	$ 1,145
Management contracts
Business Acquisition [Line Items]
Estimated Fair Value	35
Trade names and trademarks
Business Acquisition [Line Items]
Estimated Fair Value	82
Member relationships
Business Acquisition [Line Items]
Estimated Fair Value	$ 671
Member relationships \| Minimum
Business Acquisition [Line Items]
Estimated Useful Life	15 years
Member relationships \| Maximum
Business Acquisition [Line Items]
Estimated Useful Life	20 years
Management contracts
Business Acquisition [Line Items]
Estimated Fair Value	$ 357
Management contracts \| Minimum
Business Acquisition [Line Items]
Estimated Useful Life	15 years
Management contracts \| Maximum
Business Acquisition [Line Items]
Estimated Useful Life	25 years

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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