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Trade and other payables - Summary of Trade and other payables (Detail) - USD ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017
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Trade And Other Payables [Abstract] |  |
Non-current other financial payables | $ 256 | $ 265
Non-current other payables | 165 | 87
Non-current deferred income | 176 | 246
Non-current accruals | 11 | 13
Non-current royalties and mining taxes | 1 | 4
Non-current amounts owed to equity accounted units | 156 | 156
Non-current government grants deferred | 76 | 85
Total | 841 | 856
Current trade payables | 3,180 | 3,255
Current other financial payables | 653 | 867
Current other payables | 114 | 97
Current deferred income | 234 | 246
Current accruals | 1,229 | 1,347
Current employee entitlements | 630 | 734
Current royalties and mining taxes | 487 | 492
Current amounts owed to equity accounted units | 67 | 19
Current government grants deferred | 6 | 4
Total | 6,600 | 7,061
Trade payables | 3,180 | 3,255
Other financial payables | 909 | 1,132
Other payables | 279 | 184
Deferred income | 410 | 492
Accruals | 1,240 | 1,360
Employee entitlements | 630 | 734
Royalties and mining taxes | 488 | 496
Amounts owed to equity accounted units | 223 | 175
Government grants deferred | 82 | 89
Total | $ 7,441 | $ 7,917

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