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Annual report pursuant to Section 13 and 15(d)

STOCK-BASED COMPENSATION PLANS (Details 2)

v2.4.1.9
STOCK-BASED COMPENSATION PLANS (Details 2) (USD $)
In Millions, except Share data, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Nonvested shares Ìý Ìý Ìý
Weighted Average Grant-Date Fair Value Ìý Ìý Ìý
Total unrecognized compensation cost related to nonvested share-based compensation arrangements granted under the Stock Incentive Plan $ 22us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
/ us-gaap_AwardTypeAxis
= hun_NonvestedSharesMember
Ìý Ìý
Weighted-average period over which cost is expected to be recognized 1 year 8 months 12 days Ìý Ìý
Value of share awards vested $ 19us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue
/ us-gaap_AwardTypeAxis
= hun_NonvestedSharesMember
$ 18us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue
/ us-gaap_AwardTypeAxis
= hun_NonvestedSharesMember
$ 21us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue
/ us-gaap_AwardTypeAxis
= hun_NonvestedSharesMember
Equity Awards Ìý Ìý Ìý
Nonvested shares Ìý Ìý Ìý
Nonvested at the beginning of the period (in shares) 1,830,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
/ us-gaap_AwardTypeAxis
= hun_EquityAwardsMember
Ìý Ìý
Granted (in shares) 754,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= hun_EquityAwardsMember
Ìý Ìý
Vested (in shares) (735,000)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
/ us-gaap_AwardTypeAxis
= hun_EquityAwardsMember
Ìý Ìý
Forfeited (in shares) (28,000)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
/ us-gaap_AwardTypeAxis
= hun_EquityAwardsMember
Ìý Ìý
Nonvested at the end of the period (in shares) 1,821,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
/ us-gaap_AwardTypeAxis
= hun_EquityAwardsMember
Ìý Ìý
Weighted Average Grant-Date Fair Value Ìý Ìý Ìý
Nonvested at the beginning of the period (in dollars per share) $ 15.31us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= hun_EquityAwardsMember
Ìý Ìý
Granted (in dollars per share) $ 21.22us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= hun_EquityAwardsMember
Ìý Ìý
Vested (in dollars per share) $ 16.16us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= hun_EquityAwardsMember
Ìý Ìý
Forfeited (in dollars per share) $ 18.29us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= hun_EquityAwardsMember
Ìý Ìý
Nonvested at the end of the period (in dollars per share) $ 17.37us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= hun_EquityAwardsMember
Ìý Ìý
Liability Awards Ìý Ìý Ìý
Nonvested shares Ìý Ìý Ìý
Nonvested at the beginning of the period (in shares) 574,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
/ us-gaap_AwardTypeAxis
= hun_LiabilityAwardsMember
Ìý Ìý
Granted (in shares) 237,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= hun_LiabilityAwardsMember
Ìý Ìý
Vested (in shares) (284,000)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
/ us-gaap_AwardTypeAxis
= hun_LiabilityAwardsMember
Ìý Ìý
Forfeited (in shares) (35,000)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
/ us-gaap_AwardTypeAxis
= hun_LiabilityAwardsMember
Ìý Ìý
Nonvested at the end of the period (in shares) 492,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
/ us-gaap_AwardTypeAxis
= hun_LiabilityAwardsMember
Ìý Ìý
Weighted Average Grant-Date Fair Value Ìý Ìý Ìý
Nonvested at the beginning of the period (in dollars per share) $ 16.03us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= hun_LiabilityAwardsMember
Ìý Ìý
Granted (in dollars per share) $ 21.22us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= hun_LiabilityAwardsMember
Ìý Ìý
Vested (in dollars per share) $ 15.98us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= hun_LiabilityAwardsMember
Ìý Ìý
Forfeited (in dollars per share) $ 17.00us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= hun_LiabilityAwardsMember
Ìý Ìý
Nonvested at the end of the period (in dollars per share) $ 18.50us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= hun_LiabilityAwardsMember
Ìý Ìý
Restricted stock units Ìý Ìý Ìý
Nonvested shares Ìý Ìý Ìý
Vested (in shares) (44,534)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
Ìý Ìý
Weighted Average Grant-Date Fair Value Ìý Ìý Ìý
The number of restricted stock units vested at the balance sheet date (in shares) 388,299hun_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedNumber
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
Ìý Ìý