Environmental Trust Funds (Detail) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Schedule of Environmental Trust Funds [Line Items]
Balance at beginning of the year	$ 88.1	$ 79.3
Contributions	11.1	10.1
Interest earned	1.1	0.8	$ 0.7
Translation adjustment	(1.5)	(2.1)
Balance at end of the year	98.8	88.1	$ 79.3
South Africa
Schedule of Environmental Trust Funds [Line Items]
Term deposit	20.0	17.5
Ghana
Schedule of Environmental Trust Funds [Line Items]
Cash deposit	$ 78.8	$ 70.6

The amount of contributions into funds intended to fund environmental rehabilitation obligations of the entity.

No definition available.

Name:	gfi_ContributionsEnvironmentalTrustFunds
Namespace Prefix:	gfi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The funds intended to fund environmental rehabilitation obligations of the entity and are not available for general purposes of the entity.

No definition available.

Name:	gfi_EnvironmentalTrustFunds
Namespace Prefix:	gfi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The amount of interest earned on funds intended to fund environmental rehabilitation obligations of the entity.

No definition available.

Name:	gfi_InterestEarnedEnvironmentalTrustFund
Namespace Prefix:	gfi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Schedule of Environmental Trust Funds [Line Items]

No definition available.

Name:	gfi_ScheduleOfEnvironmentalTrustFundsLineItems
Namespace Prefix:	gfi_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

The portion of the funds intended to fund environmental rehabilitation obligations of the entity consisting of secured cash deposits.

No definition available.

Name:	gfi_SecuredCashDepositsEnvironmentalTrustFunds
Namespace Prefix:	gfi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The portion of the funds intended to fund environmental rehabilitation obligations of the entity consisting of term deposits.

No definition available.

Name:	gfi_TermDepositsEnvironmentalTrustFunds
Namespace Prefix:	gfi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The amount of exchange differences arising on funds intended to fund environmental rehabilitation obligations of the entity.

No definition available.

Name:	gfi_TranslationAdjustmentEnvironmentalTrustFund
Namespace Prefix:	gfi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Name:	ifrs-full_GeographicalAreasAxis=country_ZA
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_GeographicalAreasAxis=country_GH
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: