Accrued dividends on New GM Common Stock.

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- Definition

Record date for dividends accrued on New GM Securities.

+ References

No definition available.

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- Definition

Capital Loss Carry Forward

+ References

No definition available.

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- Definition

Dividend rate for dividends declared by New GM for accrued dividends.

+ References

No definition available.

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- Definition

Proceeds from liquidation of securities to fund avoidance action trust costs.

+ References

No definition available.

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- Definition

Interest, dividends, rents, ancillary and other revenues earned but not yet received by the entity on its investments.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.3)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 3

-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 4

-Article 7

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- Definition

The month and year (YYYY-MM) that the dividend to be paid was declared.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586

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- Definition

Date the liquidation is expected to be completed, in CCYY-MM-DD format.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (b)(3)

-URI http://asc.fasb.org/extlink&oid=35686370&loc=SL35686388-199418

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- Definition

Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319

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Basis of Presentation and Significant Accounting Policies - Additional Information (Detail) (USD $)	1 Months Ended	12 Months Ended	1 Months Ended
	Mar. 31, 2012	Mar. 31, 2015	Apr. 30, 2015
Basis Of Presentation And Significant Accounting Policies [Line Items]
Dividends declared per share for accrued dividend		$ 0.36
Dividends declared period		2015-04
Accrued dividends record date		Jun. 10, 2015
Liquidation date		Feb. 28, 2017
Net operating loss carryovers		$ 86,200,000us-gaap_OperatingLossCarryforwards
Capital loss carryovers		187,100,000mtlqq_CapitalLossCarryForward
Proceeds from liquidation of securities to fund Avoidance Action Trust costs	13,700,000
Accrued investment income expected to be earned		700,000
Liquidation Basis of Accounting [Member]
Basis Of Presentation And Significant Accounting Policies [Line Items]
Accrued dividends		26,524,000
Subsequent Event [Member]
Basis Of Presentation And Significant Accounting Policies [Line Items]
Dividends declared per share for accrued dividend			$ 0.36
Dividend Declared [Member] \| Liquidation Basis of Accounting [Member]
Basis Of Presentation And Significant Accounting Policies [Line Items]
Accrued dividends		4,100,000
Dividend Expected To Be Declared [Member] \| Liquidation Basis of Accounting [Member]
Basis Of Presentation And Significant Accounting Policies [Line Items]
Accrued dividends		$ 22,400,000