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DEFERRED POLICY ACQUISITION COSTS AND INSURANCE EXPENSES - Additional Information (Detail) - USD ($) $ in Billions | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Deferred Policy Acquisition Costs Disclosures [Abstract] |  |  |
Capitalization of deferred policy acquisition costs | $ 1.5 | $ 1.5 | $ 1.5
Commissions deferred as a percentage of total acquisition costs | 74.00% | 72.00% | 72.00%
Personnel, compensation and benefit expenses as a percentage of insurance expenses | 57.00% | 54.00% | 56.00%

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