Net Assets in Liquidation (Details Textual) (USD $)	6 Months Ended
	Sep. 30, 2012 Unit	Mar. 31, 2011
Loss Contingencies [Line Items]
Aggregate Disputed General Unsecured Claims		$ 8,154,000,000
Net Assets in Liquidation (Textual) [Abstract]
Number of trust units issued per thousand dollars of allowed general unsecured claims	1
Amount required to issue one Trust unit per contingent rights	1,000
Disputed General Unsecured Claims [Member]
Loss Contingencies [Line Items]
Aggregate Disputed General Unsecured Claims	4,060,000,000
Nova Scotia Matter [Member]
Loss Contingencies [Line Items]
Litigation	2,680,000,000
Claims filed by or on behalf of holders	1,000,000,000
Claims filed by former beneficial owners of notes	407,000,000
Cash payment, funded by MLC	367,000,000
Allowance of claims permitted by law	2,680,000,000
Nova Scotia Notes [Member]
Loss Contingencies [Line Items]
Aggregate amount claims by holders	1,070,000,000
Disputed Nova Scotia Claims [Member]
Loss Contingencies [Line Items]
Claim filed by bankruptcy trustee	$ 1,610,000,000