XML 203 R185.htm IDEA: XBRL DOCUMENT v2.4.1.9
Consolidated Supplementary Insurance Information (Balance Sheet Items) (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Supplementary Insurance Information, by Segment [Line Items]      
DAC & VOBA $ 5,975us-gaap_DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired $ 6,416us-gaap_DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired $ 5,832us-gaap_DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired
Future Policy Benefits, Other Policy-Related Balances and Policyholder Dividend Obligation 126,397mlic_SupplementaryInsuranceInformationFuturePolicyBenefitsOtherPolicyRelatedBalancesAndPolicyholderDividendObligation 119,405mlic_SupplementaryInsuranceInformationFuturePolicyBenefitsOtherPolicyRelatedBalancesAndPolicyholderDividendObligation 123,477mlic_SupplementaryInsuranceInformationFuturePolicyBenefitsOtherPolicyRelatedBalancesAndPolicyholderDividendObligation
Policyholder Account Balances 95,902us-gaap_PolicyholderContractDeposits 92,498us-gaap_PolicyholderContractDeposits 94,716us-gaap_PolicyholderContractDeposits
Policyholder Dividends Payable 615us-gaap_PolicyholderDividendsPayable 601us-gaap_PolicyholderDividendsPayable 610us-gaap_PolicyholderDividendsPayable
Unearned Premiums 356us-gaap_SupplementaryInsuranceInformationUnearnedPremiums 273us-gaap_SupplementaryInsuranceInformationUnearnedPremiums 284us-gaap_SupplementaryInsuranceInformationUnearnedPremiums
Unearned Revenue 568mlic_SupplementaryInsuranceInformationUnearnedRevenue 538mlic_SupplementaryInsuranceInformationUnearnedRevenue 577mlic_SupplementaryInsuranceInformationUnearnedRevenue
Retail      
Supplementary Insurance Information, by Segment [Line Items]      
DAC & VOBA 5,544us-gaap_DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_RetailMember
5,990us-gaap_DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_RetailMember
5,407us-gaap_DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_RetailMember
Future Policy Benefits, Other Policy-Related Balances and Policyholder Dividend Obligation 64,965mlic_SupplementaryInsuranceInformationFuturePolicyBenefitsOtherPolicyRelatedBalancesAndPolicyholderDividendObligation
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_RetailMember
62,912mlic_SupplementaryInsuranceInformationFuturePolicyBenefitsOtherPolicyRelatedBalancesAndPolicyholderDividendObligation
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_RetailMember
64,757mlic_SupplementaryInsuranceInformationFuturePolicyBenefitsOtherPolicyRelatedBalancesAndPolicyholderDividendObligation
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_RetailMember
Policyholder Account Balances 30,058us-gaap_PolicyholderContractDeposits
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_RetailMember
30,434us-gaap_PolicyholderContractDeposits
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_RetailMember
31,393us-gaap_PolicyholderContractDeposits
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_RetailMember
Policyholder Dividends Payable 615us-gaap_PolicyholderDividendsPayable
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_RetailMember
601us-gaap_PolicyholderDividendsPayable
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_RetailMember
610us-gaap_PolicyholderDividendsPayable
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_RetailMember
Unearned Premiums 35us-gaap_SupplementaryInsuranceInformationUnearnedPremiums
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_RetailMember
36us-gaap_SupplementaryInsuranceInformationUnearnedPremiums
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_RetailMember
36us-gaap_SupplementaryInsuranceInformationUnearnedPremiums
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_RetailMember
Unearned Revenue 527mlic_SupplementaryInsuranceInformationUnearnedRevenue
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_RetailMember
507mlic_SupplementaryInsuranceInformationUnearnedRevenue
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_RetailMember
539mlic_SupplementaryInsuranceInformationUnearnedRevenue
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_RetailMember
Group, Voluntary & Worksite Benefits      
Supplementary Insurance Information, by Segment [Line Items]      
DAC & VOBA 324us-gaap_DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_GroupVoluntaryAndWorksiteBenefitsMember
333us-gaap_DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_GroupVoluntaryAndWorksiteBenefitsMember
337us-gaap_DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_GroupVoluntaryAndWorksiteBenefitsMember
Future Policy Benefits, Other Policy-Related Balances and Policyholder Dividend Obligation 20,500mlic_SupplementaryInsuranceInformationFuturePolicyBenefitsOtherPolicyRelatedBalancesAndPolicyholderDividendObligation
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_GroupVoluntaryAndWorksiteBenefitsMember
19,460mlic_SupplementaryInsuranceInformationFuturePolicyBenefitsOtherPolicyRelatedBalancesAndPolicyholderDividendObligation
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_GroupVoluntaryAndWorksiteBenefitsMember
19,599mlic_SupplementaryInsuranceInformationFuturePolicyBenefitsOtherPolicyRelatedBalancesAndPolicyholderDividendObligation
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_GroupVoluntaryAndWorksiteBenefitsMember
Policyholder Account Balances 8,305us-gaap_PolicyholderContractDeposits
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_GroupVoluntaryAndWorksiteBenefitsMember
8,575us-gaap_PolicyholderContractDeposits
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_GroupVoluntaryAndWorksiteBenefitsMember
8,918us-gaap_PolicyholderContractDeposits
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_GroupVoluntaryAndWorksiteBenefitsMember
Policyholder Dividends Payable 0us-gaap_PolicyholderDividendsPayable
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_GroupVoluntaryAndWorksiteBenefitsMember
0us-gaap_PolicyholderDividendsPayable
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_GroupVoluntaryAndWorksiteBenefitsMember
0us-gaap_PolicyholderDividendsPayable
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_GroupVoluntaryAndWorksiteBenefitsMember
Unearned Premiums 321us-gaap_SupplementaryInsuranceInformationUnearnedPremiums
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_GroupVoluntaryAndWorksiteBenefitsMember
236us-gaap_SupplementaryInsuranceInformationUnearnedPremiums
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_GroupVoluntaryAndWorksiteBenefitsMember
248us-gaap_SupplementaryInsuranceInformationUnearnedPremiums
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_GroupVoluntaryAndWorksiteBenefitsMember
Unearned Revenue 0mlic_SupplementaryInsuranceInformationUnearnedRevenue
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_GroupVoluntaryAndWorksiteBenefitsMember
0mlic_SupplementaryInsuranceInformationUnearnedRevenue
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_GroupVoluntaryAndWorksiteBenefitsMember
0mlic_SupplementaryInsuranceInformationUnearnedRevenue
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_GroupVoluntaryAndWorksiteBenefitsMember
Corporate Benefit Funding      
Supplementary Insurance Information, by Segment [Line Items]      
DAC & VOBA 106us-gaap_DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_CorporateBenefitFundingMember
93us-gaap_DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_CorporateBenefitFundingMember
88us-gaap_DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_CorporateBenefitFundingMember
Future Policy Benefits, Other Policy-Related Balances and Policyholder Dividend Obligation 40,414mlic_SupplementaryInsuranceInformationFuturePolicyBenefitsOtherPolicyRelatedBalancesAndPolicyholderDividendObligation
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_CorporateBenefitFundingMember
36,452mlic_SupplementaryInsuranceInformationFuturePolicyBenefitsOtherPolicyRelatedBalancesAndPolicyholderDividendObligation
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_CorporateBenefitFundingMember
38,645mlic_SupplementaryInsuranceInformationFuturePolicyBenefitsOtherPolicyRelatedBalancesAndPolicyholderDividendObligation
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_CorporateBenefitFundingMember
Policyholder Account Balances 57,539us-gaap_PolicyholderContractDeposits
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_CorporateBenefitFundingMember
53,489us-gaap_PolicyholderContractDeposits
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_CorporateBenefitFundingMember
54,406us-gaap_PolicyholderContractDeposits
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_CorporateBenefitFundingMember
Policyholder Dividends Payable 0us-gaap_PolicyholderDividendsPayable
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_CorporateBenefitFundingMember
0us-gaap_PolicyholderDividendsPayable
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_CorporateBenefitFundingMember
0us-gaap_PolicyholderDividendsPayable
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_CorporateBenefitFundingMember
Unearned Premiums 0us-gaap_SupplementaryInsuranceInformationUnearnedPremiums
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_CorporateBenefitFundingMember
0us-gaap_SupplementaryInsuranceInformationUnearnedPremiums
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_CorporateBenefitFundingMember
0us-gaap_SupplementaryInsuranceInformationUnearnedPremiums
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_CorporateBenefitFundingMember
Unearned Revenue 41mlic_SupplementaryInsuranceInformationUnearnedRevenue
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_CorporateBenefitFundingMember
31mlic_SupplementaryInsuranceInformationUnearnedRevenue
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_CorporateBenefitFundingMember
38mlic_SupplementaryInsuranceInformationUnearnedRevenue
/ us-gaap_StatementBusinessSegmentsAxis
= mlic_CorporateBenefitFundingMember
Corporate & Other      
Supplementary Insurance Information, by Segment [Line Items]      
DAC & VOBA 1us-gaap_DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember
0us-gaap_DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember
0us-gaap_DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember
Future Policy Benefits, Other Policy-Related Balances and Policyholder Dividend Obligation 518mlic_SupplementaryInsuranceInformationFuturePolicyBenefitsOtherPolicyRelatedBalancesAndPolicyholderDividendObligation
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember
581mlic_SupplementaryInsuranceInformationFuturePolicyBenefitsOtherPolicyRelatedBalancesAndPolicyholderDividendObligation
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember
476mlic_SupplementaryInsuranceInformationFuturePolicyBenefitsOtherPolicyRelatedBalancesAndPolicyholderDividendObligation
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember
Policyholder Account Balances 0us-gaap_PolicyholderContractDeposits
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember
0us-gaap_PolicyholderContractDeposits
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember
(1)us-gaap_PolicyholderContractDeposits
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember
Policyholder Dividends Payable 0us-gaap_PolicyholderDividendsPayable
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember
0us-gaap_PolicyholderDividendsPayable
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember
0us-gaap_PolicyholderDividendsPayable
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember
Unearned Premiums 0us-gaap_SupplementaryInsuranceInformationUnearnedPremiums
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember
1us-gaap_SupplementaryInsuranceInformationUnearnedPremiums
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember
0us-gaap_SupplementaryInsuranceInformationUnearnedPremiums
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember
Unearned Revenue $ 0mlic_SupplementaryInsuranceInformationUnearnedRevenue
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember
$ 0mlic_SupplementaryInsuranceInformationUnearnedRevenue
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember
$ 0mlic_SupplementaryInsuranceInformationUnearnedRevenue
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember