STATUTORY FINANCIAL INFORMATION (DETAILS) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Statutory Financial Information [Abstract]
Statutory net income (loss)	$ 12	$ 34	$ 33
Statutory surplus, capital stock and Asset Valuation Reserve	401	367
Securities on deposit with such government or state agencies	6us-gaap_AssetsHeldByInsuranceRegulators
Return of surplus	$ 0mloa_PaymentOfReturnOfCapital	$ 200mloa_PaymentOfReturnOfCapital	$ 0mloa_PaymentOfReturnOfCapital

Amount of cash outflow in the form of return of capital to the parent entity.

No definition available.

Name:	mloa_PaymentOfReturnOfCapital
Namespace Prefix:	mloa_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The amount of statutory capital, surplus (stockholders' equity), and asset valuation reserve as of the balance sheet date using prescribed or permitted statutory accounting practices (rather than GAAP, if different) of the state or country.

+ References

No definition available.

+ Details

Name:	mloa_StatutoryAccountingPracticesStatutoryCapitalSurplusBalanceAndAssetValuationReserve
Namespace Prefix:	mloa_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	mloa_StatutoryFinancialInformationAbstract
Namespace Prefix:	mloa_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Carrying amount of cash and investment securities on deposit with state regulatory authorities in connection with capital requirements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 320

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=28366721&loc=d3e22002-158495

+ Details

Name:	us-gaap_AssetsHeldByInsuranceRegulators
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of net income for the period determined using accounting principles prescribed or permitted by insurance regulators.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.23(c))

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 24

-Subparagraph c

-Article 7

+ Details

Name:	us-gaap_StatutoryAccountingPracticesStatutoryNetIncomeAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration