XML 407 R129.htm IDEA: XBRL DOCUMENT
v3.19.1

Earnings Per Share - Details of Earnings Per Share (Parenthetical) (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Earnings per share [abstract] |  |  |
Earnings attributable to owners of the parent from continuing operations | $ (348.2) | $ (31.8) | $ 157.0
Weighted average number of shares issued continuing operations | 821,532,707 | 820,611,806 | 809,889,990
Profit from discontinued operations, net of taxation | $ 0.0 | $ 13.1 | $ 1.2
Weighted average number of ordinary shares in issue during period from discontinued operation | 821,532,707 | 820,611,806 | 809,889,990
Basic Earnings per share |  |  |
Weighted average number of ordinary shares, basic | 821,532,707 | 820,611,806 | 809,889,990
Headline earnings | $ 60.6 | $ 212.3 | $ 198.3
Adjusted net earnings attributable to owners of the parent, diluted discontinued operations | $ 0.0 | $ (2.4) | $ 5.5

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 profit (loss) from discontinued operations attributable to ordinary equity holders of parent entity + References No definition available. + Details
Name: | gfi_HeadlineProfitLossFromDiscontinuedOperationsAttributableToOrdinaryEquityHoldersOfParentEntity
Namespace Prefix: | gfi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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
- Definition Weighted average number of shares net result from discontinued operations. + References No definition available. + Details
Name: | gfi_WeightedAverageNumberOfSharesNetResultFromDiscontinuedOperations
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_EarningsPerShareAbstract
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 equity. [Refer: Continuing operations [member]; Profit (loss) from continuing operations] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2018-01-01 -Paragraph 70 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=33&date=2018-03-01&anchor=para_70_a&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_ProfitLossFromContinuingOperationsAttributableToOrdinaryEquityHoldersOfParentEntity
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The profit (loss) from discontinued operations. [Refer: Discontinued operations [member]; Profit (loss)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 5 -IssueDate 2018-01-01 -Paragraph 33 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=5&date=2018-03-01&anchor=para_33_a&doctype=Standard -URIDate 2018-03-16 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2018-01-01 -Paragraph B12 -Subparagraph b -Clause vii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2018-03-01&anchor=para_B12_b_vii&doctype=Appendix&seq=2 -URIDate 2018-03-16 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 82 -Subparagraph ea -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_82_ea&doctype=Standard -URIDate 2018-03-16 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 98 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_98_e&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_ProfitLossFromDiscontinuedOperations
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The number of ordinary shares outstanding at the beginning of the period, adjusted by the number of ordinary shares bought back or issued during the period multiplied by a time-weighting factor. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2018-01-01 -Paragraph 70 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=33&date=2018-03-01&anchor=para_70_b&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_WeightedAverageShares
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration