INVESTMENTS (VALUATION ALLOWANCE FOR MORTGAGE LOANS) (Details) - USD ($)	6 Months Ended
Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Mortgage loans on real estate, valuation allowances	$ 7,000,000		$ 6,000,000
Commercial Mortgage Loans
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance, January 1	6,000,000	$ 37,000,000
Charge-offs	0	(1,000,000)
Recoveries	0	0
Provision	1,000,000	0
Ending balance, March 31	7,000,000	36,000,000
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Mortgage loans on real estate, valuation allowances	7,000,000	$ 36,000,000
Agricultural Mortgage Loans
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance, January 1	0
Ending balance, March 31	$ 0

No definition available.

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- Definition

A valuation allowance for financing receivables that are expected to be uncollectible.

+ References

+ Details

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- Definition

Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

+ References

+ Details

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- Definition

Amount of recovery of financing receivables doubtful of collection that were previously charged off.

+ References

+ Details

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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- Definition

Amount of direct write-downs of financing receivables charged against the allowance.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.11)
-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

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- Details

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