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Share-Based Payments - Summary Movement of Share Options Under the Gold Fields Limited 2012 Share Plan (Detail)	12 Months Ended
	Dec. 31, 2019 shares	Dec. 31, 2018 shares	Dec. 31, 2017 shares
Gold Fields Limited 2012 Share Plan [member]
Disclosure of movements in share options [line items]
Outstanding at end of the year	14,833,390
Performance Shares [Member] | Gold Fields Limited 2012 Share Plan Amended [member]
Disclosure of movements in share options [line items]
Outstanding at beginning of the year		0	393,178
Forfeited			(393,178)
Outstanding at end of the year			0
Performance Shares [Member] | Gold Fields Limited 2012 Share Plan [member]
Disclosure of movements in share options [line items]
Outstanding at beginning of the year	18,361,977	18,279,130	8,138,472
Granted	4,558,177	811,829	11,744,152
Exercised and released	(6,611,023)	0	(34,827)
Forfeited	(1,475,741)	(728,982)	(1,568,667)
Outstanding at end of the year	14,833,390	18,361,977	18,279,130

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- Definition

Disclosure of the movement of share options under the Gold Fields Limited 2005 and 2012 share plan.

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The number of share options outstanding in a share-based payment arrangement.

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The number of share options exercised in a share-based payment arrangement.

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