XML 374 R96.htm IDEA: XBRL DOCUMENT
v3.19.1

Accounting Policies - Summary of New and Revised Accounting Standards, Amendments to Standards and New Interpretations are Adopted by the Group (Parenthetical) (Parenthetical) (Detail) - Adoption Of IFRS 16 [member] $ in Millions | Jan. 01, 2019 USD ($)
--- | ---
Bottom of range [member] |
Disclosure of initial application of standards or interpretations [line items] |
Estimated right-of-use assets | $ 190.0
Top of range [member] |
Disclosure of initial application of standards or interpretations [line items] |
Estimated additional lease liabilities | $ 230.0

X
- Definition Adjustments for increase (decrease) in lease liability current liabilities + References No definition available. + Details
Name: | gfi_AdjustmentsForIncreaseDecreaseInLeaseLiabilityCurrentLiabilities
Namespace Prefix: | gfi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfInitialApplicationOfStandardsOrInterpretationsLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of right-of-use assets for which fair value was used as their deemed cost in the opening IFRS statement of financial position. [Refer: Right-of-use assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2019-01-01 -Name IFRS -Number 1 -IssueDate 2018-01-01 -Paragraph 30 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=1&date=2018-03-01&anchor=para_30&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_RightofuseAssetFairValueUsedAsDeemedCost
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | ifrs-full_NonadjustingEventsAfterReportingPeriodAxis=gfi_AdoptionOfIFRS16Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |