| **LEASES - Schedule of Supplemental Balance Sheet Information (Details) - USD ($) $ in Millions** | Jun. 30, 2024                            | Jun. 30, 2023                            |
|---------------------------------------------------------------------------------------------------|------------------------------------------|------------------------------------------|
| **Operating leases**                                                                              |                                     |                                     |
| Right-of-use assets                                                                               | $ 360                                    | $ 346                                    |
| Current lease liabilities                                                                         | 84                                       | 87                                       |
| Non-current lease liabilities                                                                     | 334                                      | 310                                      |
| Total operating lease liabilities                                                                 | $ 418                                    | $ 397                                    |
| **Finance leases**                                                                                |                                     |                                     |
| Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]       | Other assets                             | Other assets                             |
| Right-of-use assets                                                                               | $ 33                                     | $ 29                                     |
| Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]       | Accounts payable and accrued liabilities | Accounts payable and accrued liabilities |
| Current lease liabilities                                                                         | $ 13                                     | $ 9                                      |
| Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]    | Other Liabilities, Noncurrent            | Other Liabilities, Noncurrent            |
| Non-current lease liabilities                                                                     | $ 21                                     | $ 21                                     |
| Total finance lease liabilities                                                                   | $ 34                                     | $ 30                                     |

| X                                                                                                                                                                                                                                                                         |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Finance Lease Assets And Liabilities Lessee
+ References
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| X                                                                                                                                                                                                                                                                             |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Operating Lease Assets And Liabilities Lessee
+ References
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Present value of lessee's discounted obligation for lease payments from finance lease.
+ References
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Present value of lessee's discounted obligation for lease payments from finance lease, classified as current.
+ References
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Indicates line item in statement of financial position that includes current finance lease liability.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Present value of lessee's discounted obligation for lease payments from finance lease, classified as noncurrent.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Indicates line item in statement of financial position that includes noncurrent finance lease liability.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount, after accumulated amortization, of right-of-use asset from finance lease.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Indicates line item in statement of financial position that includes finance lease right-of-use asset.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Present value of lessee's discounted obligation for lease payments from operating lease.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of lessee's right to use underlying asset under operating lease.
+ References
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