Annual report pursuant to Section 13 and 15(d)

Schedule I - Condensed Financial Information of Registrant (PARENT ONLY) - STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Details)

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Schedule I - Condensed Financial Information of Registrant (PARENT ONLY) - STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
CONDENSED CONSOLIDATING FINANCIAL INFORMATION                      
Net income $ 308 $ 41 $ 118 $ 131 $ (315) $ (8) $ 623 $ 350 $ 598 $ 650 $ 741
Other comprehensive (loss) income, net of tax:                      
Foreign currency translations adjustments                 2 (192) 210
Pension and other postretirement benefits adjustments                 (37) (39) 86
Other, net                 (1) (9)  
Other comprehensive (loss) income, net of tax                 (36) (240) 296
Comprehensive income                 562 410 1,037
Comprehensive income attributable to noncontrolling interests                 (31) (266) (127)
Comprehensive income (loss) attributable to Huntsman Corporation                 531 144 910
Reportable legal entities | Parent                      
CONDENSED CONSOLIDATING FINANCIAL INFORMATION                      
Net income                 562 337 636
Other comprehensive (loss) income, net of tax:                      
Foreign currency translations adjustments                 2 (192) 210
Pension and other postretirement benefits adjustments                 (37) (39) 86
Other, net                 35 304 105
Other comprehensive (loss) income, net of tax                   73 401
Comprehensive income                 562 410 1,037
Comprehensive income attributable to noncontrolling interests                 (31) (266) (127)
Comprehensive income (loss) attributable to Huntsman Corporation                 $ 531 $ 144 $ 910