v3.26.1
Document and Entity Information
12 Months Ended
Dec. 31, 2025
Document Information [Line Items]  
Document Type 11-K
Amendment Flag false
Entity Registrant Name ASHLAND INC.
Entity Central Index Key 0001674862
EBP 020  
Document Information [Line Items]  
Document Type 11-K
Amendment Flag false
Document Period End Date Dec. 31, 2025
Current Fiscal Year End Date --12-31
Document Fiscal Year Focus 2025
Document Fiscal Period Focus FY
Entity Registrant Name ASHLAND INC.
Entity Central Index Key 0001674862