Huntsman Corporation Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Note 19 - Employee Benefit Plans - Fair Value of Recurring Plan Assets (Details)

Note 19 - Employee Benefit Plans - Fair Value of Recurring Plan Assets (Details) - Pension Plan [Member] - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Fair value of plan assets	$ 3,100	$ 2,800
Real Estate and Other [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair value of plan assets	138	124	$ 121
UNITED STATES
Fair value of plan assets	866	790	697
UNITED STATES \| Fair Value, Inputs, Level 1 [Member]
Fair value of plan assets	557	503
UNITED STATES \| Fair Value, Inputs, Level 2 [Member]
Fair value of plan assets	247	220
UNITED STATES \| Fair Value, Inputs, Level 3 [Member]
Fair value of plan assets	62	67
UNITED STATES \| Defined Benefit Plan, Equity Securities [Member]
Fair value of plan assets	481	422
UNITED STATES \| Defined Benefit Plan, Equity Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair value of plan assets	315	283
UNITED STATES \| Defined Benefit Plan, Equity Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Fair value of plan assets	166	139
UNITED STATES \| Defined Benefit Plan, Equity Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair value of plan assets	0	0
UNITED STATES \| Fixed Income Funds [Member]
Fair value of plan assets	323	301
UNITED STATES \| Fixed Income Funds [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair value of plan assets	242	220
UNITED STATES \| Fixed Income Funds [Member] \| Fair Value, Inputs, Level 2 [Member]
Fair value of plan assets	81	81
UNITED STATES \| Fixed Income Funds [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair value of plan assets	0	0
UNITED STATES \| Real Estate and Other [Member]
Fair value of plan assets	62	67
UNITED STATES \| Real Estate and Other [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair value of plan assets	0	0
UNITED STATES \| Real Estate and Other [Member] \| Fair Value, Inputs, Level 2 [Member]
Fair value of plan assets	0	0
UNITED STATES \| Real Estate and Other [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair value of plan assets	62	67
UNITED STATES \| Defined Benefit Plan, Cash [Member]
Fair value of plan assets	0	0
UNITED STATES \| Defined Benefit Plan, Cash [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair value of plan assets	0	0
UNITED STATES \| Defined Benefit Plan, Cash [Member] \| Fair Value, Inputs, Level 2 [Member]
Fair value of plan assets	0	0
UNITED STATES \| Defined Benefit Plan, Cash [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair value of plan assets	0	0
Foreign Plan [Member]
Fair value of plan assets	2,225	1,960	$ 1,751
Foreign Plan [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair value of plan assets	991	959
Foreign Plan [Member] \| Fair Value, Inputs, Level 2 [Member]
Fair value of plan assets	1,158	944
Foreign Plan [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair value of plan assets	76	57
Foreign Plan [Member] \| Defined Benefit Plan, Equity Securities [Member]
Fair value of plan assets	564	535
Foreign Plan [Member] \| Defined Benefit Plan, Equity Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair value of plan assets	229	228
Foreign Plan [Member] \| Defined Benefit Plan, Equity Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Fair value of plan assets	335	307
Foreign Plan [Member] \| Defined Benefit Plan, Equity Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair value of plan assets	0	0
Foreign Plan [Member] \| Fixed Income Funds [Member]
Fair value of plan assets	971	847
Foreign Plan [Member] \| Fixed Income Funds [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair value of plan assets	610	560
Foreign Plan [Member] \| Fixed Income Funds [Member] \| Fair Value, Inputs, Level 2 [Member]
Fair value of plan assets	361	287
Foreign Plan [Member] \| Fixed Income Funds [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair value of plan assets	0	0
Foreign Plan [Member] \| Real Estate and Other [Member]
Fair value of plan assets	628	505
Foreign Plan [Member] \| Real Estate and Other [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair value of plan assets	93	99
Foreign Plan [Member] \| Real Estate and Other [Member] \| Fair Value, Inputs, Level 2 [Member]
Fair value of plan assets	459	349
Foreign Plan [Member] \| Real Estate and Other [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair value of plan assets	76	57
Foreign Plan [Member] \| Defined Benefit Plan, Cash [Member]
Fair value of plan assets	62	73
Foreign Plan [Member] \| Defined Benefit Plan, Cash [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair value of plan assets	59	72
Foreign Plan [Member] \| Defined Benefit Plan, Cash [Member] \| Fair Value, Inputs, Level 2 [Member]
Fair value of plan assets	3	1
Foreign Plan [Member] \| Defined Benefit Plan, Cash [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair value of plan assets	$ 0	$ 0