BASIS OF PRESENTATION AND SIGNIFICANT EVENTS - Sale of Closed Block of Commercial Long-Term Care Insurance Business (Details) - KMG America Corporation - Disposed of by Sale - Forecast $ in Millions	9 Months Ended
Sep. 30, 2018 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Estimated net loss on sale of subsidiary	$ 350
Estimated pretax loss on sale of subsidiary	760
Expected tax benefit on sale of subsidiary	410
Parent company cash contributed to sale of subsidiary	203
Transfer of statutory capital with sale of subsidiary	$ 150

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Amount classified as cash and cash equivalents attributable to disposal group held for sale or disposed of.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
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Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations.

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