XML 388 R126.htm IDEA: XBRL DOCUMENT
v3.21.1

Earnings Per Share - Details of Earnings Per Share (Parenthetical) (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Basic earnings per share |  |  |
Earnings attributable to owners of the parent from continuing operations | $ 723.0 | $ 161.6 | $ (348.2)
Weighted average number of shares issued continuing operations | 878,661,474 | 827,386,603 | 821,532,707
Diluted earnings per share |  |  |
Profit/(loss) from continuing operations | $ 719.3 | $ 161.6 | $ 348.2
Diluted weighted average number of shares issued continuing operations | 889,841,717 | 839,234,102 | 832,465,491
Net profit/(loss) attributable to owners of the parent has been adjusted by the following to arrive to dilutive profit or loss attributable to parent owner |  |  |
South Deep minority interest at 10% | 10.00% |  |
Headline earnings per share |  |  |
Headline weighted average number of ordinary shares, continuing operation | 878,661,474 | 827,386,603 | 821,532,707
Headline earnings | $ 729.3 | $ 162.7 | $ 60.6
Diluted headline earnings per share |  |  |
Diluted Headline earnings | $ 725.6 | $ 162.7 | $ 60.6
Diluted headline weighted average number of ordinary shares, continuing operation | 889,841,717 | 839,234,102 | 832,465,491
Headline Earnings Has Been Adjusted By The Following To Arrive Dilutive Headline Earnings [Abstract] |  |  |
South Deep minority interest at 10% | 10.00% |  |

X
- Definition Diluted headline earnings loss from continuing operations. + References No definition available. + Details
Name: | gfi_DilutedHeadlineEarningsLossFromContinuingOperations
Namespace Prefix: | gfi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Diluted headline earnings per share. + References No definition available. + Details
Name: | gfi_DilutedHeadlineEarningsPerShareAbstract
Namespace Prefix: | gfi_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Diluted headline weighted average number of ordinary shares continuing operation. + References No definition available. + Details
Name: | gfi_DilutedHeadlineWeightedAverageNumberOfOrdinarySharesContinuingOperation
Namespace Prefix: | gfi_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Diluted profit loss from continuing operations attributable to ordinary equity holders of parent entity. + References No definition available. + Details
Name: | gfi_DilutedProfitLossFromContinuingOperationsAttributableToOrdinaryEquityHoldersOfParentEntity
Namespace Prefix: | gfi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Diluted weighted average number of shares issued from continuing operations. + References No definition available. + Details
Name: | gfi_DilutedWeightedAverageNumberOfSharesIssuedFromContinuingOperations
Namespace Prefix: | gfi_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Headline earnings has been adjusted by the following to arrive dilutive headline earnings. + References No definition available. + Details
Name: | gfi_HeadlineEarningsHasBeenAdjustedByTheFollowingToArriveDilutiveHeadlineEarningsAbstract
Namespace Prefix: | gfi_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Headline earnings/(loss) from continuing operations. + References No definition available. + Details
Name: | gfi_HeadlineEarningsLossFromContinuingOperations
Namespace Prefix: | gfi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Headline Earnings per share [abstract] + References No definition available. + Details
Name: | gfi_HeadlineEarningsPerShareAbstract
Namespace Prefix: | gfi_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Headline weighted average number of shares issued from continuing operations. + References No definition available. + Details
Name: | gfi_HeadlineWeightedAverageNumberOfSharesIssuedFromContinuingOperations
Namespace Prefix: | gfi_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Net profit/(loss) attributable to owners of the parent has been adjusted by the following to arrive to dilutive profit or loss attributable to parent owner. + References No definition available. + Details
Name: | gfi_NetProfitLossAttributableToOwnersOfTheParentHasBeenAdjustedByTheFollowingToArriveToDilutiveProfitOrLossAttributableToParentOwnerAbstract
Namespace Prefix: | gfi_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of non controlling interest attributable to parent. + References No definition available. + Details
Name: | gfi_PercentageOfNonControllingInterestAttributableToParent
Namespace Prefix: | gfi_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of non controlling interest related to headline earnings attributable to parent . + References No definition available. + Details
Name: | gfi_PercentageOfNonControllingInterestRelatedToHeadlineEarningsAttributableToParent
Namespace Prefix: | gfi_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weighted average number of shares issued from continuing operations. + References No definition available. + Details
Name: | gfi_WeightedAverageNumberOfSharesIssuedFromContinuingOperations
Namespace Prefix: | gfi_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | ifrs-full_BasicEarningsPerShareAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | ifrs-full_DilutedEarningsPerShareAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The profit (loss) from continuing operations attributable to ordinary equity holders of the parent entity. [Refer: Continuing operations [member]; Profit (loss) from continuing operations] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2020-01-01 -Paragraph 70 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=33&code=ifrs-tx-2020-en-r&anchor=para_70_a&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_ProfitLossFromContinuingOperationsAttributableToOrdinaryEquityHoldersOfParentEntity
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration