Condensed Consolidated Statements of Equity (Unaudited) - USD ($) $ in Millions  | 
 Huntsman International LLC [Member]  
Common Stock Outstanding [Member] 
 | 
 Huntsman International LLC [Member]  
Retained Earnings [Member] 
 | 
 Huntsman International LLC [Member]  
AOCI Attributable to Parent [Member] 
 | 
 Huntsman International LLC [Member]  
Noncontrolling Interest [Member] 
 | 
Huntsman International LLC [Member]  | 
Common Stock Outstanding [Member]  | 
Additional Paid-in Capital [Member]  | 
Treasury Stock, Common [Member]  | 
Deferred Compensation, Share-Based Payments [Member]  | 
Retained Earnings [Member]  | 
AOCI Attributable to Parent [Member]  | 
Noncontrolling Interest [Member]  | 
Total  | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Balance (in shares) at Dec. 31, 2021 | 2,728 | 214,170,287 | |||||||||||
| Balance at Dec. 31, 2021 | $ 3,732 | $ 2,093 | $ (1,187) | $ 181 | $ 4,819 | $ 3 | $ 4,102 | $ (934) | $ (25) | $ 2,435 | $ (1,203) | $ 181 | $ 4,559 | 
| Net income | 0 | 226 | 0 | 17 | 243 | 0 | 0 | 0 | 0 | 223 | 0 | 17 | 240 | 
| Other comprehensive income (loss) | $ 0 | 0 | (11) | (1) | (12) | 0 | 0 | 0 | 0 | 0 | (11) | (1) | (12) | 
| Issuance of nonvested stock awards | $ 0 | 32 | 0 | (32) | 0 | 0 | 0 | 0 | |||||
| Vesting of stock awards (in shares) | 1,327,568 | ||||||||||||
| Vesting of stock awards | $ 0 | 7 | 0 | 0 | 0 | 0 | 0 | 7 | |||||
| Recognition of stock-based compensation | $ 0 | 1 | 0 | 8 | 0 | 0 | 0 | 9 | |||||
| Repurchase and cancellation of stock awards (in shares) | (361,250) | ||||||||||||
| Repurchase and cancellation of stock awards | $ 0 | 0 | 0 | 0 | (13) | 0 | 0 | (13) | |||||
| Stock options exercised (in shares) | 387,899 | ||||||||||||
| Stock options exercised | $ 0 | 10 | 0 | 0 | (5) | 0 | 0 | 5 | |||||
| Treasury stock repurchased (in shares) | (5,549,348) | ||||||||||||
| Treasury stock repurchased | $ 0 | 0 | (210) | 0 | 0 | 0 | 0 | (210) | |||||
| Dividends declared on common stock ($0.2375 per share) | $ 0 | 0 | 0 | 0 | (45) | 0 | 0 | (45) | |||||
| Balance (in shares) at Mar. 31, 2022 | 2,728 | 209,975,156 | |||||||||||
| Balance at Mar. 31, 2022 | $ 3,741 | 2,274 | (1,198) | 197 | 5,014 | $ 3 | 4,152 | (1,144) | (49) | 2,595 | (1,214) | 197 | 4,540 | 
| Net income | 0 | 226 | 0 | 17 | 243 | 0 | 0 | 0 | 0 | 223 | 0 | 17 | 240 | 
| Dividends paid to parent | 0 | (45) | 0 | 0 | (45) | ||||||||
| Contribution from parent | 9 | 0 | 0 | 0 | 9 | ||||||||
| Dividends paid to parent | (0) | 45 | (0) | (0) | 45 | ||||||||
| Other comprehensive income (loss) | $ 0 | 0 | (11) | (1) | (12) | $ 0 | 0 | 0 | 0 | 0 | (11) | (1) | (12) | 
| Balance (in shares) at Dec. 31, 2021 | 2,728 | 214,170,287 | |||||||||||
| Balance at Dec. 31, 2021 | $ 3,732 | 2,093 | (1,187) | 181 | 4,819 | $ 3 | 4,102 | (934) | (25) | 2,435 | (1,203) | 181 | 4,559 | 
| Net income | 486 | 482 | |||||||||||
| Other comprehensive income (loss) | (110) | (118) | (109) | (117) | |||||||||
| Balance (in shares) at Jun. 30, 2022 | 2,728 | 201,672,202 | |||||||||||
| Balance at Jun. 30, 2022 | $ 3,751 | 2,461 | (1,297) | 204 | 5,119 | $ 3 | 4,154 | (1,435) | (41) | 2,778 | (1,312) | 204 | 4,351 | 
| Net income | 486 | 482 | |||||||||||
| Other comprehensive income (loss) | (110) | (118) | (109) | (117) | |||||||||
| Balance (in shares) at Mar. 31, 2022 | 2,728 | 209,975,156 | |||||||||||
| Balance at Mar. 31, 2022 | $ 3,741 | 2,274 | (1,198) | 197 | 5,014 | $ 3 | 4,152 | (1,144) | (49) | 2,595 | (1,214) | 197 | 4,540 | 
| Net income | 0 | 229 | 0 | 14 | 243 | 0 | 0 | 0 | 0 | 228 | 0 | 14 | 242 | 
| Other comprehensive income (loss) | $ 0 | 0 | (99) | (7) | (106) | $ 0 | 0 | 0 | 0 | 0 | (98) | (7) | (105) | 
| Vesting of stock awards (in shares) | 4,045 | ||||||||||||
| Vesting of stock awards | $ 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||
| Recognition of stock-based compensation | $ 0 | 1 | 0 | 8 | 0 | 0 | 0 | 9 | |||||
| Repurchase and cancellation of stock awards (in shares) | (2,416) | ||||||||||||
| Repurchase and cancellation of stock awards | $ 0 | 0 | 0 | 0 | (1) | 0 | 0 | (1) | |||||
| Stock options exercised (in shares) | 66,840 | ||||||||||||
| Stock options exercised | $ 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | |||||
| Treasury stock repurchased (in shares) | (8,371,423) | ||||||||||||
| Treasury stock repurchased | $ 0 | 0 | (291) | 0 | 0 | 0 | 0 | (291) | |||||
| Dividends declared on common stock ($0.2375 per share) | $ 0 | 0 | 0 | 0 | (44) | 0 | 0 | (44) | |||||
| Balance (in shares) at Jun. 30, 2022 | 2,728 | 201,672,202 | |||||||||||
| Balance at Jun. 30, 2022 | $ 3,751 | 2,461 | (1,297) | 204 | 5,119 | $ 3 | 4,154 | (1,435) | (41) | 2,778 | (1,312) | 204 | 4,351 | 
| Net income | 0 | 229 | 0 | 14 | 243 | 0 | 0 | 0 | 0 | 228 | 0 | 14 | 242 | 
| Dividends paid to parent | 0 | (42) | 0 | 0 | (42) | ||||||||
| Contribution from parent | 10 | 0 | 0 | 0 | 10 | ||||||||
| Dividends paid to parent | (0) | 42 | (0) | (0) | 42 | ||||||||
| Other comprehensive income (loss) | $ 0 | 0 | (99) | (7) | (106) | $ 0 | 0 | 0 | 0 | 0 | (98) | (7) | $ (105) | 
| Balance (in shares) at Dec. 31, 2022 | 2,728 | 183,634,464 | 183,634,464 | ||||||||||
| Balance at Dec. 31, 2022 | $ 3,759 | 1,130 | (1,253) | 216 | 3,852 | $ 3 | 4,156 | (1,937) | (35) | 2,705 | (1,268) | 216 | $ 3,840 | 
| Net income | 0 | 155 | 0 | 13 | 168 | 0 | 0 | 0 | 0 | 153 | 0 | 13 | 166 | 
| Other comprehensive income (loss) | 0 | 0 | 126 | 2 | 128 | 0 | 0 | 0 | 0 | 0 | 125 | 2 | 127 | 
| Issuance of nonvested stock awards | $ 0 | 32 | 0 | (32) | 0 | 0 | 0 | 0 | |||||
| Vesting of stock awards (in shares) | 1,016,782 | ||||||||||||
| Vesting of stock awards | $ 0 | 5 | 0 | 0 | 0 | 0 | 0 | 5 | |||||
| Recognition of stock-based compensation | $ 0 | 1 | 0 | 9 | 0 | 0 | 0 | 10 | |||||
| Repurchase and cancellation of stock awards (in shares) | (301,231) | ||||||||||||
| Repurchase and cancellation of stock awards | $ 0 | 0 | 0 | 0 | (9) | 0 | 0 | (9) | |||||
| Stock options exercised (in shares) | 16,245 | ||||||||||||
| Stock options exercised | $ 0 | 1 | 0 | 0 | (1) | 0 | 0 | 0 | |||||
| Treasury stock repurchased (in shares) | (3,472,020) | ||||||||||||
| Treasury stock repurchased | $ 0 | 0 | (101) | 0 | 0 | 0 | 0 | (101) | |||||
| Distributions to noncontrolling interests | $ 0 | 0 | 0 | (4) | (4) | 0 | 0 | 0 | 0 | 0 | 0 | (4) | (4) | 
| Dividends declared on common stock ($0.2375 per share) | $ 0 | 0 | 0 | 0 | (44) | 0 | 0 | (44) | |||||
| Balance (in shares) at Mar. 31, 2023 | 2,728 | 180,894,240 | |||||||||||
| Balance at Mar. 31, 2023 | $ 3,769 | 1,133 | (1,127) | 227 | 4,002 | $ 3 | 4,195 | (2,038) | (58) | 2,804 | (1,143) | 227 | 3,990 | 
| Net income | 0 | 155 | 0 | 13 | 168 | 0 | 0 | 0 | 0 | 153 | 0 | 13 | 166 | 
| Dividends paid to parent | 0 | (43) | 0 | 0 | (43) | ||||||||
| Contribution from parent | 10 | 0 | 0 | 0 | 10 | ||||||||
| Distribution to parent | 0 | (109) | 0 | 0 | (109) | ||||||||
| Dividends paid to parent | (0) | 43 | (0) | (0) | 43 | ||||||||
| Other comprehensive income (loss) | $ 0 | 0 | 126 | 2 | 128 | $ 0 | 0 | 0 | 0 | 0 | 125 | 2 | $ 127 | 
| Balance (in shares) at Dec. 31, 2022 | 2,728 | 183,634,464 | 183,634,464 | ||||||||||
| Balance at Dec. 31, 2022 | $ 3,759 | 1,130 | (1,253) | 216 | 3,852 | $ 3 | 4,156 | (1,937) | (35) | 2,705 | (1,268) | 216 | $ 3,840 | 
| Net income | 199 | 197 | |||||||||||
| Other comprehensive income (loss) | 93 | 87 | 93 | $ 87 | |||||||||
| Stock options exercised (in shares) | 54,000 | ||||||||||||
| Treasury stock repurchased (in shares) | (7,262,089) | ||||||||||||
| Treasury stock repurchased | $ (199) | ||||||||||||
| Balance (in shares) at Jun. 30, 2023 | 2,728 | 177,110,274 | 177,110,274 | ||||||||||
| Balance at Jun. 30, 2023 | $ 3,773 | 1,012 | (1,160) | 231 | 3,856 | $ 3 | 4,195 | (2,136) | (53) | 2,781 | (1,175) | 231 | $ 3,846 | 
| Net income | 199 | 197 | |||||||||||
| Other comprehensive income (loss) | 93 | 87 | 93 | 87 | |||||||||
| Balance (in shares) at Mar. 31, 2023 | 2,728 | 180,894,240 | |||||||||||
| Balance at Mar. 31, 2023 | $ 3,769 | 1,133 | (1,127) | 227 | 4,002 | $ 3 | 4,195 | (2,038) | (58) | 2,804 | (1,143) | 227 | 3,990 | 
| Net income | 0 | 19 | 0 | 12 | 31 | 0 | 0 | 0 | 0 | 19 | 0 | 12 | 31 | 
| Other comprehensive income (loss) | $ 0 | 0 | (33) | (8) | (41) | $ 0 | 0 | 0 | 0 | 0 | (32) | (8) | (40) | 
| Vesting of stock awards (in shares) | 6,616 | ||||||||||||
| Vesting of stock awards | $ 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||
| Recognition of stock-based compensation | $ 0 | 0 | 0 | 5 | 0 | 0 | 0 | 5 | |||||
| Repurchase and cancellation of stock awards (in shares) | (1,957) | ||||||||||||
| Repurchase and cancellation of stock awards | $ 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||
| Stock options exercised (in shares) | 1,444 | ||||||||||||
| Stock options exercised | $ 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||
| Treasury stock repurchased (in shares) | (3,790,069) | ||||||||||||
| Treasury stock repurchased | $ 0 | 0 | (98) | 0 | 0 | 0 | 0 | (98) | |||||
| Dividends declared on common stock ($0.2375 per share) | $ 0 | 0 | 0 | 0 | (42) | 0 | 0 | $ (42) | |||||
| Balance (in shares) at Jun. 30, 2023 | 2,728 | 177,110,274 | 177,110,274 | ||||||||||
| Balance at Jun. 30, 2023 | $ 3,773 | 1,012 | (1,160) | 231 | 3,856 | $ 3 | 4,195 | (2,136) | (53) | 2,781 | (1,175) | 231 | $ 3,846 | 
| Net income | 0 | 19 | 0 | 12 | 31 | 0 | 0 | 0 | 0 | 19 | 0 | 12 | 31 | 
| Dividends paid to parent | 0 | 45 | 0 | 0 | 45 | ||||||||
| Contribution from parent | 4 | 0 | 0 | 0 | 4 | ||||||||
| Distribution to parent | 0 | (95) | 0 | 0 | (95) | ||||||||
| Dividends paid to parent | 0 | (45) | 0 | 0 | (45) | ||||||||
| Other comprehensive income (loss) | $ 0 | $ 0 | $ (33) | $ (8) | $ (41) | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ (32) | $ (8) | $ (40) |