2.2.0.7falseNon-Cash Investing and Financing Information (Parenthetical) (Detail) (USD $)148 - Disclosure - Non-Cash Investing and Financing Information (Parenthetical) (Detail)truefalseIn Millionsfalsefalse1USDfalsefalseiso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170iso4217_USD_per_sharesDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instanceshares0pureStandardhttp://www.xbrl.org/2003/instancepure0sharesStandardhttp://www.xbrl.org/2003/instanceshares0$53us-gaap_LiabilityForFuturePolicyBenefitsLiabilitiesAssumedus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalsefalse90000009falsefalsefalsexbrli:monetaryItemTypemonetaryIncrease in the period in the accrued obligations to policy and contract holders that relates to insured events, and can be viewed as either (a) the estimated present value of future benefits to be paid to or on behalf of policyholders and expenses less the present value of future net premiums payable under the insurance contracts or (b) the accumulated amount of net premiums already collected less the accumulated amount of benefits and expenses already paid to or on behalf of policyholders.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Financial Reporting Release (FRR)
-Number 403
-Paragraph 04
-Subparagraph b
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