v3.25.1
Cover Page
3 Months Ended
Mar. 31, 2025
shares
Cover [Abstract]  
Document Type 10-Q
Amendment Flag false
Document Period End Date Mar. 31, 2025
Document Fiscal Year Focus 2025
Document Quarterly Report true
Document Transition Report false
Document Fiscal Period Focus Q1
Entity Registrant Name MILLS MUSIC TRUST
Entity Central Index Key 0000066496
Entity Address, State or Province NY
Entity Incorporation, State or Country Code NY
Entity Address, Address Line One c/o HSBC Bank USA, N.A., Corporate Trust Issuer Services
Entity Address, Address Line Two 66 Hudson Boulevard East
Entity Address, City or Town New York
Entity Address, Postal Zip Code 10001
Current Fiscal Year End Date --03-31
City Area Code 212
Local Phone Number 525-1349
Entity Current Reporting Status Yes
Entity File Number 000-02123
Entity Tax Identification Number 13-6183792
Entity Filer Category Non-accelerated Filer
Entity Small Business true
Entity Emerging Growth Company false
Entity Interactive Data Current Yes
Entity Shell Company false
Entity Common Stock, Shares Outstanding 277,712