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BENEFITS PAYABLE - Benefit Expenses Excluded From Activity in Benefits Payable (Detail) - USD ($) $ in Millions | 6 Months Ended
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Jun. 30, 2017 | Jun. 30, 2016
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
Premium deficiency reserve - Individual Commercial | $ 0 | $ 161
Military services | 0 | 6
Individual Commercial | (16) | (37)
Total | (16) | 130
Operating Segments | Individual Commercial |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
Individual Commercial | (36) | (62)
Other Businesses |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
Individual Commercial | $ 20 | $ 25

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- Definition Benefit expenses associated with military services and provisions associated with future policy benefits + References No definition available. + Details
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- Definition Health Care Reform, Provision for Premium Deficiency1 + References No definition available. + Details
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- Definition Expense recorded during the period related to benefit expenses associated with military services + References No definition available. + Details
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- Definition Amount of expense (income) recognized due to changes in the accrued obligation to policyholders that relates to insured events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=65670824&loc=d3e14764-158437 + Details
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