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Share-Based Compensation Expense Available for Each Plan (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation	$ 26.0us-gaap_AllocatedShareBasedCompensationExpense	$ 40.5us-gaap_AllocatedShareBasedCompensationExpense	$ 45.5us-gaap_AllocatedShareBasedCompensationExpense
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation	0us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember
Continuing operations
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation	26.0us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentContinuingOperationsMember	40.5us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentContinuingOperationsMember	45.5us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentContinuingOperationsMember
Continuing operations | The Gold Fields Limited 2012 Share Plan | Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation	12.0us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / us-gaap_PlanNameAxis = gfi_GoldFieldsLimitedTwoThousandAndTwelveSharePlanMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentContinuingOperationsMember	18.8us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / us-gaap_PlanNameAxis = gfi_GoldFieldsLimitedTwoThousandAndTwelveSharePlanMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentContinuingOperationsMember	13.1us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / us-gaap_PlanNameAxis = gfi_GoldFieldsLimitedTwoThousandAndTwelveSharePlanMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentContinuingOperationsMember
Continuing operations | The Gold Fields Limited 2012 Share Plan | Bonus Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation	12.3us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = gfi_BonusShareMember / us-gaap_PlanNameAxis = gfi_GoldFieldsLimitedTwoThousandAndTwelveSharePlanMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentContinuingOperationsMember	11.9us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = gfi_BonusShareMember / us-gaap_PlanNameAxis = gfi_GoldFieldsLimitedTwoThousandAndTwelveSharePlanMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentContinuingOperationsMember	8.7us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = gfi_BonusShareMember / us-gaap_PlanNameAxis = gfi_GoldFieldsLimitedTwoThousandAndTwelveSharePlanMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentContinuingOperationsMember
Continuing operations | The Gold Fields Limited 2005 Share Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation	1.7us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_PlanNameAxis = gfi_GfLimitedTwoThousandAndFiveSharePlanMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentContinuingOperationsMember	9.8us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_PlanNameAxis = gfi_GfLimitedTwoThousandAndFiveSharePlanMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentContinuingOperationsMember	23.7us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_PlanNameAxis = gfi_GfLimitedTwoThousandAndFiveSharePlanMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentContinuingOperationsMember
Discontinued operations
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation	0us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember	4.6us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember	32.2us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember
Discontinued operations | The Gold Fields Limited 2012 Share Plan | Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation		1.1us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / us-gaap_PlanNameAxis = gfi_GoldFieldsLimitedTwoThousandAndTwelveSharePlanMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember	7.6us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / us-gaap_PlanNameAxis = gfi_GoldFieldsLimitedTwoThousandAndTwelveSharePlanMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember
Discontinued operations | The Gold Fields Limited 2012 Share Plan | Bonus Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation		0.8us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = gfi_BonusShareMember / us-gaap_PlanNameAxis = gfi_GoldFieldsLimitedTwoThousandAndTwelveSharePlanMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember	5.0us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = gfi_BonusShareMember / us-gaap_PlanNameAxis = gfi_GoldFieldsLimitedTwoThousandAndTwelveSharePlanMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember
Discontinued operations | The Gold Fields Limited 2005 Share Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation		$ 2.7us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_PlanNameAxis = gfi_GfLimitedTwoThousandAndFiveSharePlanMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember	$ 19.6us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_PlanNameAxis = gfi_GfLimitedTwoThousandAndFiveSharePlanMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember

X

- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 14.F)

-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(1)(i)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

-Section F

+ Details

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