Cover Page	6 Months Ended
	Sep. 30, 2020 shares
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2020
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Entity Registrant Name	Motors Liquidation Co
Entity Central Index Key	0000040730
Current Fiscal Year End Date	--03-31
Entity Filer Category	Non-accelerated Filer
Entity Current Reporting Status	No
Entity Small Business	false
Entity Address, State or Province	DE
Entity Interactive Data Current	Yes
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding	0
Entity Shell Company	false