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Estimated Capital Allowances (Detail) (Total Mining Operations, USD $) In Millions, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010	Jun. 30, 2010
Income Taxes [Line Items]
Estimated assessed tax losses	$ 525.3	$ 928.5	$ 958.2
Gold Fields Operations
Income Taxes [Line Items]
Estimated assessed tax losses	484.4	653.2	600.4
GFI Joint Venture Holdings
Income Taxes [Line Items]
Estimated assessed tax losses	12.6	67.5	81.5
Gold Fields Australia (Pty) Limited
Income Taxes [Line Items]
Estimated assessed tax losses		177.6	251.9
Gold Fields Group (excluding South Deep)
Income Taxes [Line Items]
Estimated assessed tax losses	10.0	2.0
Golden Oils (Pty) Limited
Income Taxes [Line Items]
Estimated assessed tax losses	1.2	1.4	1.0
Agrihold (Pty) Limited
Income Taxes [Line Items]
Estimated assessed tax losses	1.9	2.3	2.1
Golden Hytec Farming (Pty) Limited
Income Taxes [Line Items]
Estimated assessed tax losses	1.1	1.4	1.2
Living Gold (Pty) Limited
Income Taxes [Line Items]
Estimated assessed tax losses	$ 14.1	$ 23.1	$ 20.1

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- Definition

The sum of domestic, foreign and state and local operating loss carryforwards, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 109

-Paragraph 48

-Subparagraph a

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319

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