XML 10 R1.htm IDEA: XBRL DOCUMENT v3.10.0.1
Document and Entity Information
 6 Months Ended
Jun. 30, 2018
Document Information [Line Items]  
Document Type 6-K
Amendment Flag false
Document Period End Date Jun. 30, 2018
Document Fiscal Year Focus 2018
Document Fiscal Period Focus Q2
Trading Symbol RIO
Entity Registrant Name Rio Tinto plc
Entity Central Index Key 0000863064
Current Fiscal Year End Date --12-31
Entity Well-known Seasoned Issuer Yes
Entity Voluntary Filers No
Entity Current Reporting Status Yes
Entity Filer Category Large Accelerated Filer