Name:	mlic_DeferredPolicyAcquisitionCostsandPresentValueofFutureInsuranceProfitsCeded
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Amount, before effect of reinsurance, ceded, of present value of future benefit to be paid to or on behalf of policyholder and related expense less present value of future net premium receivable under insurance contract.

No definition available.

Name:	mlic_LiabilityforFuturePolicyBenefitbeforeReinsuranceCeded
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Data Type:	xbrli:monetaryItemType
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Liability as of the balance sheet date to the policyholders for funds held that are returnable under the terms of insurance contracts that were not separately reported. Also includes unearned premiums.

No definition available.

Name:	mlic_OtherPolicyRelatedBalances
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Sum of the carrying amounts as of the balance sheet date of all reinsurance assets.

No definition available.

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Data Type:	xbrli:monetaryItemType
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Sum of the carrying amounts as of the balance sheet date of all reinsurance liabilities.

No definition available.

Name:	mlic_ReinsuranceLiabilities
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Data Type:	xbrli:monetaryItemType
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- References

No definition available.

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Amount, after accumulated amortization, of deferred policy acquisition costs and present value of future profits from insurance contract acquired in business combination.

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- References

No definition available.

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Amount, before effect of reinsurance, of present value of future benefit to be paid to or on behalf of policyholder and related expense less present value of future net premium receivable under insurance contract.

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Amount of liabilities classified as other.

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Amount of liability due to policyholder for deposit held under long-duration contract issued by insurance entity.

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Carrying amount as of the balance sheet date, net of allowance for doubtful accounts, of all premiums and other types of receivables due from other persons or entities.

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