Annual report pursuant to Section 13 and 15(d)

Note 18 - Employee Benefit Plans - Periodic Benefit Cost and Other Comprehensive Income (Loss) (Details)

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Note 18 - Employee Benefit Plans - Periodic Benefit Cost and Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Pension Plan [Member] | UNITED STATES      
Current year actuarial (gain) loss $ (3) $ (28) $ (78)
Amortization of actuarial loss 0 (20) (31)
Current year prior service (credit) cost 0 0 0
Amortization of prior service credit 2 2 2
Settlements/curtailments 0 (5) 0
Total recognized in other comprehensive income (loss) (1) (51) (107)
Amounts related to discontinued operations (1) 2 20
Total recognized in other comprehensive income (loss) in continuing operations (2) (49) (87)
Net periodic benefit (credit) cost (4) 12 18
Total recognized in net periodic benefit cost and other comprehensive income (loss) (6) (37) (69)
Pension Plan [Member] | UNITED STATES | Huntsman International LLC [Member]      
Current year actuarial (gain) loss (3) (28) (78)
Amortization of actuarial loss 0 (20) (31)
Current year prior service (credit) cost 0 0 0
Amortization of prior service credit 2 2 2
Settlements/curtailments 0 (5) 0
Total recognized in other comprehensive income (loss) (1) (51) (107)
Amounts related to discontinued operations (1) 2 20
Total recognized in other comprehensive income (loss) in continuing operations (2) (49) (87)
Net periodic benefit (credit) cost (4) 12 18
Total recognized in net periodic benefit cost and other comprehensive income (loss) (6) (37) (69)
Pension Plan [Member] | Foreign Plan [Member]      
Current year actuarial (gain) loss 135 (115) (150)
Amortization of actuarial loss (32) (36) (59)
Current year prior service (credit) cost 0 (3) 1
Amortization of prior service credit 4 5 5
Settlements/curtailments (5) 0 (3)
Total recognized in other comprehensive income (loss) 102 (149) (206)
Amounts related to discontinued operations 0 57 25
Total recognized in other comprehensive income (loss) in continuing operations 102 (92) (181)
Net periodic benefit (credit) cost 30 (14) 3
Total recognized in net periodic benefit cost and other comprehensive income (loss) 132 (106) (178)
Pension Plan [Member] | Foreign Plan [Member] | Huntsman International LLC [Member]      
Current year actuarial (gain) loss 135 (115) (150)
Amortization of actuarial loss (32) (36) (62)
Current year prior service (credit) cost 0 (3) 1
Amortization of prior service credit 4 5 5
Settlements/curtailments (5) 0 (3)
Total recognized in other comprehensive income (loss) 102 (149) (209)
Amounts related to discontinued operations 0 57 25
Total recognized in other comprehensive income (loss) in continuing operations 102 (92) (184)
Net periodic benefit (credit) cost 30 (14) 6
Total recognized in net periodic benefit cost and other comprehensive income (loss) 132 (106) (178)
Other Postretirement Benefits Plan [Member] | UNITED STATES      
Current year actuarial (gain) loss (4) (10) (2)
Amortization of actuarial loss 0 (2) (2)
Current year prior service (credit) cost (1) 0 0
Amortization of prior service credit 5 5 5
Total recognized in other comprehensive income (loss) 0 (7) 1
Amounts related to discontinued operations 1 2 1
Total recognized in other comprehensive income (loss) in continuing operations 1 (5) 2
Net periodic benefit (credit) cost (1) 0 1
Total recognized in net periodic benefit cost and other comprehensive income (loss) 0 (5) 3
Other Postretirement Benefits Plan [Member] | UNITED STATES | Huntsman International LLC [Member]      
Current year actuarial (gain) loss (4) (10) (2)
Amortization of actuarial loss 0 (2) (2)
Current year prior service (credit) cost (1) 0 0
Amortization of prior service credit 5 5 5
Total recognized in other comprehensive income (loss) 0 (7) 1
Amounts related to discontinued operations 1 2 1
Total recognized in other comprehensive income (loss) in continuing operations 1 (5) 2
Net periodic benefit (credit) cost (1) 0 1
Total recognized in net periodic benefit cost and other comprehensive income (loss) 0 (5) 3
Other Postretirement Benefits Plan [Member] | Foreign Plan [Member]      
Current year actuarial (gain) loss 0 0 0
Amortization of actuarial loss 0 0 0
Current year prior service (credit) cost 0 0 0
Amortization of prior service credit 0 0 0
Total recognized in other comprehensive income (loss) 0 0 0
Amounts related to discontinued operations 0 0 0
Total recognized in other comprehensive income (loss) in continuing operations 0 0 0
Net periodic benefit (credit) cost 0 0 0
Total recognized in net periodic benefit cost and other comprehensive income (loss) 0 0 0
Other Postretirement Benefits Plan [Member] | Foreign Plan [Member] | Huntsman International LLC [Member]      
Current year actuarial (gain) loss 0 0 0
Amortization of actuarial loss 0 0 0
Current year prior service (credit) cost 0 0 0
Amortization of prior service credit 0 0 0
Total recognized in other comprehensive income (loss) 0 0 0
Amounts related to discontinued operations 0 0 0
Total recognized in other comprehensive income (loss) in continuing operations 0 0 0
Net periodic benefit (credit) cost 0 0 0
Total recognized in net periodic benefit cost and other comprehensive income (loss) $ 0 $ 0 $ 0