RISK MANAGEMENT ACTIVITIES AND FAIR VALUE MEASUREMENTS - ADDITIONAL INFORMATION (Details) - USD ($)
$ in Millions |
3 Months Ended |
9 Months Ended |
|
Mar. 31, 2023 |
Mar. 31, 2022 |
Mar. 31, 2023 |
Mar. 31, 2022 |
Jun. 30, 2022 |
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Cash Equivalents, at Carrying Value |
$ 6,000
|
|
$ 6,000
|
|
$ 6,000
|
| Equity Securities, FV-NI |
63
|
|
63
|
|
113
|
| Equity Securities, FV-NI, Unrealized Gain (Loss) |
2
|
$ (4)
|
(10)
|
$ 36
|
|
| Collateral Already Posted, Aggregate Fair Value |
1,131
|
|
1,131
|
|
219
|
| Derivatives in Fair Value Hedging Relationships | Underlying, Other |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Underlying Debt Obligation, Carrying Amt |
3,600
|
|
3,600
|
|
4,700
|
| Derivatives in Net Investment Hedging Relationships | Underlying, Other |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Underlying Debt Obligation, Carrying Amt |
10,500
|
|
10,500
|
|
11,200
|
| Long-term Debt [Member] |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Long-term Debt, Fair Value |
25,900
|
|
25,900
|
|
25,700
|
| Long Term Debt, Current Maturities Measured at Fair Value |
4,100
|
|
4,100
|
|
3,600
|
| Other Investments [Member] |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Investments, Fair Value Disclosure |
$ 91
|
|
$ 91
|
|
$ 140
|