Annual report [Section 13 and 15(d), not S-K Item 405]

Schedule I - Condensed Financial Information of Registrant - Huntsman Corporation (Parent Only) Balance Sheets (Details)

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Schedule I - Condensed Financial Information of Registrant - Huntsman Corporation (Parent Only) Balance Sheets (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Investment in and advances to affiliates $ 309 $ 346    
Total assets 7,015 7,114    
Accrued liabilities [1] 458 416    
Total current liabilities 1,589 1,565    
Other noncurrent liabilities [1] 322 324    
Total liabilities 4,058 3,951    
Common stock $0.01 par value, 1,200,000,000 shares authorized, 263,229,465 and 262,751,907 shares issued and 172,622,337 and 172,144,779 shares outstanding, respectively 3 3    
Additional paid-in capital 4,261 4,233    
Treasury stock, 90,607,128 shares (2,290) (2,290)    
Unearned stock-based compensation (28) (32)    
Retained earnings 1,810 2,245    
Accumulated other comprehensive loss (1,006) (1,200)    
Total stockholders’ equity 2,750 2,959    
Total liabilities and stockholders’ equity 7,015 7,114    
Parent Company [Member] | Reportable Legal Entities [Member]        
Investment in and advances to affiliates 2,759 2,966    
Total assets 2,759 2,966    
Accrued liabilities 0 2    
Total current liabilities 0 2    
Other noncurrent liabilities 9 5    
Total liabilities 9 7    
Common stock $0.01 par value, 1,200,000,000 shares authorized, 263,229,465 and 262,751,907 shares issued and 172,622,337 and 172,144,779 shares outstanding, respectively 3 3    
Additional paid-in capital 4,261 4,233    
Treasury stock, 90,607,128 shares (2,290) (2,290)    
Unearned stock-based compensation (28) (32)    
Retained earnings 1,810 2,245    
Accumulated other comprehensive loss (1,006) (1,200)    
Total stockholders’ equity 2,750 2,959 $ 3,251 $ 3,624
Total liabilities and stockholders’ equity $ 2,759 $ 2,966    
[1] At December 31, 2025 and December 31, 2024, respectively, $3 and $6 of cash and cash equivalents, $24 and $19 of accounts and notes receivable (net), $50 and $57 of inventories, $122 and $124 of property, plant and equipment (net), $35 and $37 of other noncurrent assets, $91 and $111 of accounts payable, $22 and $21 of accrued liabilities, $7 and $9 of current portion of debt, $6 each of current operating lease liabilities, nil and $7 of long-term debt, $12 and $15 of noncurrent operating lease and $15 and $16 of other noncurrent liabilities from consolidated variable interest entities are included in the respective Balance Sheets captions above. See “Note 8. Variable Interest Entities.” These assets can only be used to settle obligations of the variable interest entities, and creditors of these liabilities do not have recourse to our general credit.