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Share-Based Payments - Summary Movement of Share Options Under the Gold Fields Limited 2012 Share Plan (Parenthetical) (Detail)	Dec. 31, 2019 shares
Disclosure of movements in share options [abstract]
Options vested	0

X

- Definition

Disclosure of movements in share options.

+ References

No definition available.

+ Details

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Namespace Prefix:	gfi_
Data Type:	xbrli:stringItemType
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X

- Definition

Number of share options vested in share based payment arrangement.

+ References

No definition available.

+ Details

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Namespace Prefix:	gfi_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant