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Trade and Other Receivables - Schedule of Trade and Other Receivables (Parenthetical) (Detail) - USD ($) | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Trade and Other Receivables [line items] |  |
Gold and oil derivative contracts | $ 25,000,000 | $ 0
Australian Oil Derivative Contracts [member] |  |
Trade and Other Receivables [line items] |  |
Gold and oil derivative contracts | 5,100,000 | 0
Ghanaian Oil Derivative Contracts [member] |  |
Trade and Other Receivables [line items] |  |
Gold and oil derivative contracts | 9,000,000 | 0
Gold Derivative Contracts at South Deep [member] |  |
Trade and Other Receivables [line items] |  |
Gold and oil derivative contracts | $ 10,900,000 | $ 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_GoldDerivativeContractsAtSouthDeepMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |