v3.25.1
Document and Entity Information
Jun. 11, 2025
Cover [Abstract]  
Entity Registrant Name Allison Transmission Holdings Inc
Amendment Flag false
Entity Central Index Key 0001411207
Document Type 8-K
Document Period End Date Jun. 11, 2025
Entity Incorporation State Country Code DE
Entity File Number 001-35456
Entity Tax Identification Number 26-0414014
Entity Address, Address Line One One Allison Way
Entity Address, City or Town Indianapolis
Entity Address, State or Province IN
Entity Address, Postal Zip Code 46222
City Area Code (317)
Local Phone Number 242-5000
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Common Stock, $0.01 par value
Trading Symbol ALSN
Security Exchange Name NYSE
Entity Emerging Growth Company false