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% |