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Group income statement - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Consolidated operations      
Consolidated sales revenue $ 40,522 $ 40,030 $ 33,781
Net operating costs (excluding items shown separately) (27,115) (26,983) (26,799)
Impairment charges (132) (796) (249)
Net gains on consolidation and disposal of interests in businesses 4,622 2,344 515
Exploration and evaluation costs (488) (445) (497)
Profit/(loss) relating to interests in undeveloped projects 278 (15) 44
Operating profit 17,687 14,135 6,795
Share of profit after tax of equity accounted units 513 339 321
Profit before finance items and taxation 18,200 14,474 7,116
Finance items      
Net exchange gains/(losses) on US external debt and intragroup balances 704 (601) 611
Net (losses)/gains on derivatives not qualifying for hedge accounting (57) 33 (24)
Finance income 249 141 89
Finance costs (552) (848) (1,111)
Amortisation of discount (377) (383) (338)
Net finance income (expense) (33) (1,658) (773)
Profit before taxation 18,167 12,816 6,343
Taxation (4,242) (3,965) (1,567)
Profit after tax for the year 13,925 8,851 4,776
– attributable to owners of Rio Tinto (net earnings) 13,638 8,762 4,617
– attributable to non-controlling interests $ 287 $ 89 $ 159
Basic earnings per share $ 793.2 $ 490.4 $ 256.9
Diluted earnings per share $ 787.6 $ 486.9 $ 255.3