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Major Group Investments - Direct and Indirect - Schedule of Major Group Investments - Direct and Indirect (Detail) - ZAR (R) R in Millions | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
Disclosure of subsidiaries [line items] |  |
Carrying value in holding company shares | R 42,931.4 | R 42,931.4
Carrying value in holding company loans | R (9,316.9) | R (8,409.6)
Abosso Goldfields Limited [member] | Class a shares [member] |  |
Disclosure of subsidiaries [line items] |  |
Shares held | 49,734,000 | 49,734,000
Group beneficial interest | 90.00% | 90.00%
Carrying value in holding company shares | R 0.0 | R 0.0
Carrying value in holding company loans | R 0.0 | R 0.0
Abosso Goldfields Limited [member] | Class B Shares [Member] |  |
Disclosure of subsidiaries [line items] |  |
Shares held | 4,266,000 | 4,266,000
Group beneficial interest | 90.00% | 90.00%
Carrying value in holding company shares | R 0.0 | R 0.0
Carrying value in holding company loans | R 0.0 | R 0.0
Agnew Gold Mining Company Proprietary Limited [member] |  |
Disclosure of subsidiaries [line items] |  |
Shares held | 54,924,757 | 54,924,757
Group beneficial interest | 100.00% | 100.00%
Carrying value in holding company shares | R 0.0 | R 0.0
Carrying value in holding company loans | R 0.0 | R 0.0
Beatrix Mines Limited [member] |  |
Disclosure of subsidiaries [line items] |  |
Shares held | 96,549,020 | 96,549,020
Group beneficial interest | 100.00% | 100.00%
Carrying value in holding company shares | R 206.8 | R 206.8
Carrying value in holding company loans | R 0.0 | R 0.0
Beatrix Mining Ventures Limited [member] |  |
Disclosure of subsidiaries [line items] |  |
Shares held | 9,625,001 | 9,625,001
Group beneficial interest | 100.00% | 100.00%
Carrying value in holding company shares | R 120.4 | R 120.4
Carrying value in holding company loans | R (136.8) | R (136.8)
Darlot Mining Company Pty Ltd [Member] |  |
Disclosure of subsidiaries [line items] |  |
Shares held | 1 | 1
Group beneficial interest | 100.00% | 100.00%
Carrying value in holding company shares | R 0.0 | R 0.0
Carrying value in holding company loans | R 0.0 | R 0.0
Driefontein Consolidated (Pty) Ltd [member] |  |
Disclosure of subsidiaries [line items] |  |
Shares held | 1,000 | 1,000
Group beneficial interest | 100.00% | 100.00%
Carrying value in holding company shares | R 0.0 | R 0.0
Carrying value in holding company loans | R (13.1) | R (13.1)
GFI Joint Venture Holdings (Proprietary) Limited [Member] |  |
Disclosure of subsidiaries [line items] |  |
Shares held | 311,668,564 | 311,668,564
Group beneficial interest | 100.00% | 100.00%
Carrying value in holding company shares | R 0.0 | R 0.0
Carrying value in holding company loans | R (0.4) | R (0.4)
GFL Mining Services Limited [Member] |  |
Disclosure of subsidiaries [line items] |  |
Shares held | 235,676,387 | 235,676,387
Group beneficial interest | 100.00% | 100.00%
Carrying value in holding company shares | R 18,790.5 | R 18,790.5
Carrying value in holding company loans | R (8,331.2) | R (8,004.2)
Gold Fields Ghana Limited [member] |  |
Disclosure of subsidiaries [line items] |  |
Shares held | 900 | 900
Group beneficial interest | 90.00% | 90.00%
Carrying value in holding company shares | R 0.0 | R 0.0
Carrying value in holding company loans | R 0.0 | R 0.0
Gold Fields Group Services (Pty) Ltd [member] |  |
Disclosure of subsidiaries [line items] |  |
Shares held | 1 | 1
Group beneficial interest | 100.00% | 100.00%
Carrying value in holding company shares | R 0.0 | R 0.0
Carrying value in holding company loans | R (224.8) | R 355.5
Gold Fields Holdings Company BVI Limited [Member] |  |
Disclosure of subsidiaries [line items] |  |
Shares held | 4,084 | 4,084
Group beneficial interest | 100.00% | 100.00%
Carrying value in holding company shares | R 0.0 | R 0.0
Carrying value in holding company loans | R 0.0 | R 0.0
Gold Fields La Cima SA [member] |  |
Disclosure of subsidiaries [line items] |  |
Shares held | 1,426,050,205 | 1,426,050,205
Group beneficial interest | 99.50% | 99.50%
Carrying value in holding company shares | R 0.0 | R 0.0
Carrying value in holding company loans | R 0.0 | R 0.0
Gold Fields Operations Limited [Member] |  |
Disclosure of subsidiaries [line items] |  |
Shares held | 156,279,947 | 156,279,947
Group beneficial interest | 100.00% | 100.00%
Carrying value in holding company shares | R 0.0 | R 0.0
Carrying value in holding company loans | R (0.4) | R (0.4)
Gold Fields Orogen Holdings (BVI) Ltd [Member] |  |
Disclosure of subsidiaries [line items] |  |
Shares held | 356 | 356
Group beneficial interest | 100.00% | 100.00%
Carrying value in holding company shares | R 0.0 | R 0.0
Carrying value in holding company loans | R 0.0 | R 0.0
Gruyere Mining Company Pty Ltd [member] |  |
Disclosure of subsidiaries [line items] |  |
Shares held | 1 | 1
Group beneficial interest | 100.00% | 100.00%
Carrying value in holding company shares | R 0.0 | R 0.0
Carrying value in holding company loans | R 0.0 | R 0.0
GSM Mining Company Pty Ltd [member] |  |
Disclosure of subsidiaries [line items] |  |
Shares held | 1 | 1
Group beneficial interest | 100.00% | 100.00%
Carrying value in holding company shares | R 0.0 | R 0.0
Carrying value in holding company loans | R 0.0 | R 0.0
Kloof Gold Mining Company Ltd [member] |  |
Disclosure of subsidiaries [line items] |  |
Shares held | 138,600,000 | 138,600,000
Group beneficial interest | 100.00% | 100.00%
Carrying value in holding company shares | R 602.8 | R 602.8
Carrying value in holding company loans | R (610.2) | R (610.2)
Newshelf 899 (Pty) Ltd [member] |  |
Disclosure of subsidiaries [line items] |  |
Shares held | 90,000,000 | 90,000,000
Group beneficial interest | 100.00% | 100.00%
Carrying value in holding company shares | R 23,210.9 | R 23,210.9
Carrying value in holding company loans | R 0.0 | R 0.0
St Ives Gold Mining Company Pty Ltd [Member] |  |
Disclosure of subsidiaries [line items] |  |
Shares held | 281,051,329 | 281,051,329
Group beneficial interest | 100.00% | 100.00%
Carrying value in holding company shares | R 0.0 | R 0.0
Carrying value in holding company loans | R 0.0 | R 0.0

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