XML 9 R1.htm IDEA: XBRL DOCUMENT v3.20.2
Cover page
6 Months Ended
Jun. 30, 2020
Document And Entity Information [Abstract]  
Document Type 6-K
Entity Registrant Name Rio Tinto plc
Amendment Flag false
Document Period End Date Jun. 30, 2020
Document Fiscal Year Focus 2020
Document Fiscal Period Focus Q2
Entity Central Index Key 0000863064
Current Fiscal Year End Date --12-31