XML 404 R126.htm IDEA: XBRL DOCUMENT v3.19.1
Mining and Income Taxation - Summary of Estimated Available for Set-off Against Future Income Pre Tax (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
South African - Components of Mining and Income Tax [Member]    
Disclosure of Estimated Amount Available for Set Off Against Future Income Pretax [Line Items]    
Gross unredeemed capital expenditure $ 1,641.1 $ 3,143.5
Gross tax losses 248.7 192.5
Gross deferred tax asset not recognised 0.0 1,501.6
International operations [member]    
Disclosure of Estimated Amount Available for Set Off Against Future Income Pretax [Line Items]    
Gross unredeemed capital expenditure 0.0 0.0
Gross tax losses 510.9 647.3
Gross deferred tax asset not recognised 430.0 509.4
Abosso Goldfields Limited [member] | International operations [member]    
Disclosure of Estimated Amount Available for Set Off Against Future Income Pretax [Line Items]    
Gross unredeemed capital expenditure 0.0 0.0
Gross tax losses 80.9 201.4
Gross deferred tax asset not recognised 0.0 63.5
Gold Fields Operations Limited [Member] | South African - Components of Mining and Income Tax [Member]    
Disclosure of Estimated Amount Available for Set Off Against Future Income Pretax [Line Items]    
Gross unredeemed capital expenditure 638.0 716.4
Gross tax losses 206.4 192.5
Gross deferred tax asset not recognised 0.0 0.0
GFI Joint Venture Holdings (Proprietary) Limited [Member] | South African - Components of Mining and Income Tax [Member]    
Disclosure of Estimated Amount Available for Set Off Against Future Income Pretax [Line Items]    
Gross unredeemed capital expenditure 1,003.1 2,427.1
Gross tax losses 41.0 0.0
Gross deferred tax asset not recognised 0.0 1,501.6
Gold Fields Group Services Pty Limited [member] | South African - Components of Mining and Income Tax [Member]    
Disclosure of Estimated Amount Available for Set Off Against Future Income Pretax [Line Items]    
Gross unredeemed capital expenditure 0.0 0.0
Gross tax losses 1.3 0.0
Gross deferred tax asset not recognised 0.0 0.0
Exploration Entities [member] | International operations [member]    
Disclosure of Estimated Amount Available for Set Off Against Future Income Pretax [Line Items]    
Gross unredeemed capital expenditure 0.0 0.0
Gross tax losses 430.0 445.9
Gross deferred tax asset not recognised $ 430.0 $ 445.9