XML 28 R40.htm IDEA: XBRL DOCUMENT v2.4.1.9
INVESTMENTS (offsetting) (DETAILS) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Offsetting Assets [Line Items]    
Net amounts presented in the balance sheets $ 90mloa_NetAmountsOfAssetsPresentedInStatementOfFinancialPosition $ 84mloa_NetAmountsOfAssetsPresentedInStatementOfFinancialPosition
Equity Contract [Member]    
Offsetting Assets [Line Items]    
Gross amounts recognized 32us-gaap_DerivativeFairValueOfDerivativeAsset
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_EquityContractMember
20us-gaap_DerivativeFairValueOfDerivativeAsset
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_EquityContractMember
Gross amounts offset in the balance sheets 6mloa_GrossAmountsOffsetInStatementOfFinancialPositionAssets
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_EquityContractMember
6mloa_GrossAmountsOffsetInStatementOfFinancialPositionAssets
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_EquityContractMember
Net amounts presented in the balance sheets 26mloa_NetAmountsOfAssetsPresentedInStatementOfFinancialPosition
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_EquityContractMember
14mloa_NetAmountsOfAssetsPresentedInStatementOfFinancialPosition
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_EquityContractMember
Derivatives Subject to an ISDA Master Agreements [Member]    
Offsetting Assets [Line Items]    
Gross amounts recognized 32us-gaap_DerivativeFairValueOfDerivativeAsset
/ us-gaap_DerivativeInstrumentRiskAxis
= mloa_DerivativesSubjectToIsdaMasterAgreementsMember
20us-gaap_DerivativeFairValueOfDerivativeAsset
/ us-gaap_DerivativeInstrumentRiskAxis
= mloa_DerivativesSubjectToIsdaMasterAgreementsMember
Gross amounts offset in the balance sheets 6mloa_GrossAmountsOffsetInStatementOfFinancialPositionAssets
/ us-gaap_DerivativeInstrumentRiskAxis
= mloa_DerivativesSubjectToIsdaMasterAgreementsMember
6mloa_GrossAmountsOffsetInStatementOfFinancialPositionAssets
/ us-gaap_DerivativeInstrumentRiskAxis
= mloa_DerivativesSubjectToIsdaMasterAgreementsMember
Net amounts presented in the balance sheets 26mloa_NetAmountsOfAssetsPresentedInStatementOfFinancialPosition
/ us-gaap_DerivativeInstrumentRiskAxis
= mloa_DerivativesSubjectToIsdaMasterAgreementsMember
14mloa_NetAmountsOfAssetsPresentedInStatementOfFinancialPosition
/ us-gaap_DerivativeInstrumentRiskAxis
= mloa_DerivativesSubjectToIsdaMasterAgreementsMember
Other Financial Instruments [Member]    
Offsetting Assets [Line Items]    
Gross amounts recognized 64us-gaap_DerivativeFairValueOfDerivativeAsset
/ us-gaap_DerivativeInstrumentRiskAxis
= mloa_OtherFinancialInstrumentsMember
70us-gaap_DerivativeFairValueOfDerivativeAsset
/ us-gaap_DerivativeInstrumentRiskAxis
= mloa_OtherFinancialInstrumentsMember
Net amounts presented in the balance sheets 64mloa_NetAmountsOfAssetsPresentedInStatementOfFinancialPosition
/ us-gaap_DerivativeInstrumentRiskAxis
= mloa_OtherFinancialInstrumentsMember
70mloa_NetAmountsOfAssetsPresentedInStatementOfFinancialPosition
/ us-gaap_DerivativeInstrumentRiskAxis
= mloa_OtherFinancialInstrumentsMember
Other Invested Assets [Member]    
Offsetting Assets [Line Items]    
Gross amounts recognized 96us-gaap_DerivativeFairValueOfDerivativeAsset
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_OtherInvestmentsMember
90us-gaap_DerivativeFairValueOfDerivativeAsset
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_OtherInvestmentsMember
Gross amounts offset in the balance sheets 6mloa_GrossAmountsOffsetInStatementOfFinancialPositionAssets
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_OtherInvestmentsMember
6mloa_GrossAmountsOffsetInStatementOfFinancialPositionAssets
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_OtherInvestmentsMember
Net amounts presented in the balance sheets $ 90mloa_NetAmountsOfAssetsPresentedInStatementOfFinancialPosition
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_OtherInvestmentsMember
$ 84mloa_NetAmountsOfAssetsPresentedInStatementOfFinancialPosition
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_OtherInvestmentsMember