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Trade and Other Receivables - Schedule of Trade and Other Receivables (Parenthetical) (Detail) - USD ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Australian oil derivative contracts [member] |  |
Trade and Other Receivables [line items] |  |
Gold and oil derivative contracts | $ 1.7 | $ 5.1
Ghanaian oil derivative contracts [member] |  |
Trade and Other Receivables [line items] |  |
Gold and oil derivative contracts | 3.0 | 9.0
Ghanaian gold derivative contracts [member] |  |
Trade and Other Receivables [line items] |  |
Gold and oil derivative contracts | 2.4 | 0.0
Gold derivative contracts at south deep [member] |  |
Trade and Other Receivables [line items] |  |
Gold and oil derivative contracts | 0.0 | 10.9
Peruvian copper derivative contracts [member] |  |
Trade and Other Receivables [line items] |  |
Gold and oil derivative contracts | $ 1.2 | $ 0.0

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- Definition Gold and oil derivative contracts. + References No definition available. + Details
Name: | gfi_GoldAndOilDerivativeContracts
Namespace Prefix: | gfi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Trade and other receivables. + References No definition available. + Details
Name: | gfi_TradeAndOtherReceivablesLineItems
Namespace Prefix: | gfi_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | ifrs-full_HedgingInstrumentsAxis=gfi_AustralianOilDerivativeContractsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_HedgingInstrumentsAxis=gfi_GhanaianOilDerivativeContractsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_HedgingInstrumentsAxis=gfi_GhanaianGoldDerivativeContractsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_HedgingInstrumentsAxis=gfi_GoldDerivativeContractsAtSouthDeepMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_HedgingInstrumentsAxis=gfi_PeruvianCopperDerivativeContractsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |