XML 62 R1.htm IDEA: XBRL DOCUMENT v3.10.0.1
Document and Entity Information
 12 Months Ended
Jun. 30, 2018
shares
Document information [Line Items]  
Document Type 20-F
Amendment Flag false
Document Period End Date Jun. 30, 2018
Document Fiscal Year Focus 2018
Document Fiscal Period Focus FY
Trading Symbol BHP
Entity Registrant Name BHP BILLITON LTD
Entity Central Index Key 0000811809
Current Fiscal Year End Date --06-30
Entity Well-known Seasoned Issuer Yes
Entity Current Reporting Status Yes
Entity Filer Category Large Accelerated Filer
BHP Billiton Limited [Member]  
Document information [Line Items]  
Entity Common Stock, Shares Outstanding 3,211,691,105
BHP Billiton Plc [Member]  
Document information [Line Items]  
Entity Common Stock, Shares Outstanding 2,112,071,796