XML 54 R43.htm IDEA: XBRL DOCUMENT v3.8.0.1
OTHER CONTINGENCIES AND GUARANTEES (Details) - USD ($)
$ in Millions
9 Months Ended
Mar. 31, 2018
Jun. 30, 2017
Loss Contingencies [Line Items]    
Liability for aggregate future remediation costs $ 28 $ 28
Letter of credit 9  
Letter of credit, amount outstanding 0  
Alameda County, California Matter    
Loss Contingencies [Line Items]    
Liability for aggregate future remediation costs $ 14 14
Remediation period 30 years  
Maximum undiscounted costs $ 28  
Dickinson County, Michigan Matter    
Loss Contingencies [Line Items]    
Liability for aggregate future remediation costs $ 12 $ 12
Remediation period 30 years  
Percentage of liability for aggregate remediation and associated costs, other than legal fees 24.30%