NOTES RECEIVABLE - Notes Receivable Expected Future Principal Payments (Net of Reserves and Unamortized Discounts and Interest Rates) (Details) $ in Millions	Dec. 31, 2018 USD ($)
Receivables [Abstract]
2019	$ 6
2020	62
2021	2
2022	2
2023	0
Thereafter	59
Senior, mezzanine, and other loans	$ 131
Weighted average interest rate at year-end 2018	5.90%
Range of stated interest rates at year-end 2018, minimum	0.00%
Range of stated interest rates at year-end 2018, maximum	9.00%

Notes Receivable, Future Principal Payments Receivable, After Year Five

No definition available.

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- Definition

Notes Receivable, Future Principal Payments Receivable, Current

+ References

No definition available.

+ Details

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- Definition

Notes Receivable, Future Principal Payments Receivable, in Five Years

+ References

No definition available.

+ Details

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- Definition

Notes Receivable, Future Principal Payments Receivable, in Four Years

+ References

No definition available.

+ Details

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- Definition

Notes Receivable, Future Principal Payments Receivable, in Three Years

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

Notes Receivable, Future Principal Payments Receivable, in Two Years

+ References

No definition available.

+ Details

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- Definition

Upper limit of range of stated interest rates for total notes receivable as of the balance sheet date indicated.

+ References

No definition available.

+ Details

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- Definition

Lower limit of range of stated interest rates for total notes receivable as of the balance sheet date indicated.

+ References

No definition available.

+ Details

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- Definition

Weighted average interest rate for total notes receivable as of the balance sheet date indicated.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
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- Definition

Net amount of the investment in a contractual right to receive money on demand or on fixed or determinable dates that is recognized as an asset in the creditor's statement of financial position. Examples include, but are not limited to, credit card receivables, notes receivable and receivables relating to lessor's rights to payments from leases other than operating leases that have been recorded as assets. Excludes trade accounts receivable with contractual maturity of one year or less and arose from the sale of goods or services.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.3)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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- References

No definition available.

+ Details

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