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INVESTMENTS - Investments in Consolidated Variable Interest Entities (Detail) - USD ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Variable Interest Entity [Line Items] |  |  |
Available for sale, fixed maturity securities, amortized cost |  | $ 79,371 | $ 76,856
Available for sale, fixed maturity securities |  | 91,262 | 82,895
Equity securities |  | 802 | 987
Commercial mortgage and other loans |  | 9,569 | 6,919
Commercial mortgage and other loans, fair value |  | 9,648 | 6,893
Other investments |  | 1,477 | 787
Asset derivatives |  | 482 | 417
Assets, fair value |  | 98,070 | 88,788
Liability derivatives |  | 586 | 387
Liabilities |  | 123,809 | 116,944
Liabilities, fair value |  | 586 | 387
Variable Interest Entity, Consolidated |  |  |
Variable Interest Entity [Line Items] |  |  |
Available for sale, fixed maturity securities, amortized cost |  | 3,308 | 3,849
Available for sale, fixed maturity securities |  | 4,312 | 4,466
Equity securities, FV-NI, cost |  | 0 | 160
Equity securities |  | 0 | 160
Commercial mortgage and other loans |  | 7,956 | 5,528
Commercial mortgage and other loans, fair value |  | 8,015 | 5,506
Other investments | [1] | 494 | 328
Other investments, fair value | [1] | 494 | 328
Asset derivatives, amortized cost | [2] | 169 | 182
Asset derivatives | [2] | 169 | 182
Assets, amortized cost |  | 11,927 | 10,047
Assets, fair value |  | 12,990 | 10,642
Liability derivatives, amortized cost | [2] | 126 | 102
Liability derivatives | [2] | 126 | 102
Liabilities |  | 126 | 102
Liabilities, fair value |  | $ 126 | $ 102
[1] | Consists entirely of alternative investments in limited partnerships
[2] | Consists entirely of derivatives

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