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INVESTMENTS - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 3 Months Ended |  | 3 Months Ended |
--- | --- | --- | --- | ---
Mar. 31, 2014 investment | Mar. 31, 2013 investment | Mar. 31, 2014 Variable Interest Entity, Not Consolidated issuer | Dec. 31, 2013 Variable Interest Entity, Not Consolidated | Mar. 31, 2014 Perpetual securities | Mar. 31, 2014 Perpetual securities Lower Limit | Mar. 31, 2014 Perpetual securities Minimum Upper Limit | Mar. 31, 2014 Parent Company
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |
Reclassified investments from the held-to-maturity portfolio to the available-for-sale portfolio, number of investments | 1 | 0 |  |  |  |  |  |
Reclassified investments from the held-to-maturity portfolio to the available-for-sale portfolio, amortized cost | $ 63 |  |  |  |  |  |  |
Reclassified investments from the held-to-maturity portfolio to the available-for-sale portfolio, aggregate unrealized gain (loss) | (8) |  |  |  |  |  |  |
Available-for-sale fixed-maturity securities, amortized cost |  |  |  |  |  |  |  | 339
Securities available for sale, fixed maturities, fair value |  |  | $ 7,191 | $ 6,916 |  |  |  | $ 353
Perpetual securities, interest coupons that were fixed at issuance subsequently change to a floating short-term interest rate |  |  |  |  | floating short-term interest rate of 125 to more than 300 basis points above an appropriate market index |  |  |
Maturity date (in years) |  |  |  |  | 25 years |  |  |
Perpetual securities, floating short-term interest rate basis point above market index |  |  |  |  |  | 1.25% | 3.00% |
Number of issuers of VIEs not-consolidated |  |  | 174 |  |  |  |  |
Percentage that the lending policy requires that the fair value of the securities and/or unrestricted cash received as collateral be of the fair value of the loaned securities | 102.00% |  |  |  |  |  |  |

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- Definition Amount of available-for-sale debt securities at cost, net of adjustments, which include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings (less any cumulative-effect adjustments, as defined) and fair value hedge accounting adjustments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.2) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563 + Details
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- Definition This item represents the unrealized gain (loss) recognized in other comprehensive income (a separate component of shareholders' equity) as a result of securities categorized as held-to-maturity being transferred to the available-for-sale securities category. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27405-111563 + Details
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