| Document and Entity Information | Nov. 26, 2024 |
| Cover [Abstract] | |
| Entity Address, State or Province | NY |
| Amendment Flag | false |
| Entity Central Index Key | 0000806085 |
| Document Type | 8-K |
| Document Period End Date | Nov. 26, 2024 |
| Entity Registrant Name | LEHMAN BROTHERS HOLDINGS INC. PLAN TRUST |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 1-9466 |
| Entity Tax Identification Number | 30-6315144 |
| Entity Address, Address Line One | 420 Lexington Avenue |
| Entity Address, City or Town | New York |
| Entity Address, Postal Zip Code | 10170 |
| City Area Code | (646) |
| Local Phone Number | 285-9000 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
