Plan of Liquidation (Details) (USD $)	1 Months Ended
	Mar. 31, 2012	May 31, 2011	Jun. 30, 2012	Jan. 20, 2012	Dec. 15, 2011	Mar. 31, 2011 Warrants
Plan of Liquidation (Textual) [Abstract]
Allowed General Unsecured Claims						$ 29,771,000,000
Disputed general unsecured claims						8,154,000,000
Aggregate amount of general unsecured claims allowed and disputed and potential avoidance action general unsecured claims						39,425,000,000
Amount of term loan avoidance action					1,500,000,000
Distributable assets new GM shares					150
Allowed general unsecured claims threshold					35,000,000,000
Potential additional shares to be issued					30
Allowed general unsecured claims maximum excess amount					7,000,000,000
Contrribution from MLC						52,700,000
Shares requested to be sold to provide additional funds						87,182
Warrants requested to be sold to provide additional funds						79,256
Cash proceeds from sale		5,700,000
Motion seeking liquidation of securities to fund projected GUC Trust fees, costs and expenses for 2011 and 2012				26,500,000
Liquidation of stock to fund projected costs, fees and expenses of the Avoidance Action Trust				13,700,000
Proceeds from liquidation of securities to fund projected trust fees costs and expenses	26,500,000
Proceeds from liquidation of securities to fund avoidance action trust costs	13,700,000
New GM Securities reserved or set aside for projected GUC Trust fees, costs and expenses			42,900,000
Proceeds held by GUC trust	13,700,000
New GM Securities reserved and set aside for potential Taxes on Distribution			150,800,000
Tax basis on securities held			1,112,000,000
Tax basis in excess of fair value of holdings of New GM Securities			15,374,000
Residual wind-down assets					$ 41,362,444
New GM Series A Warrants [Member]
Class of Warrant or Right [Line Items]
Distributable assets number of securities called by warrants					136,363,635
Exercise price per share					$ 10.00
New GM Series B Warrants [Member]
Class of Warrant or Right [Line Items]
Distributable assets number of securities called by warrants					136,363,635
Exercise price per share					$ 18.33