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Trade and other payables (Tables)
 12 Months Ended
Dec. 31, 2020
Trade and other payables [abstract]  
Summary of trade and other payables

Non-current
2020
US$m
Current
2020
US$m
Total
2020
US$m
Non-current
2019
US$m
Current
2019
US$m
Total
2019
US$m
Trade payables
1 3,124 3,125 — 2,855 2,855 
Other financial payables
298 862 1,160 272 668 940 
Other payables
97 115 212 110 97 207 
Deferred income(a)
133 344 477 143 200 343 
Accruals
27 1,294 1,321 27 1,305 1,332 
Employee entitlements
— 762 762 — 650 650 
Royalties and mining taxes
3 863 866 4 596 600 
Amounts owed to equity accounted units
190 51 241 167 104 271 
Government grants deferred
71 6 77 71 5 76 
Total
820 7,421 8,241 794 6,480 7,274 
(a)Deferred income includes contract liabilities of US$338 million (2019: US$158 million).