RISK MANAGEMENT ACTIVITIES AND FAIR VALUE MEASUREMENTS - SCHEDULE OF DERIVATIVE INSTRUMENTS (Details) - USD ($)
$ in Millions |
Mar. 31, 2023 |
Jun. 30, 2022 |
| Derivative [Line Items] |
|
|
| Derivative, Notional Amount |
$ 20,101
|
$ 18,540
|
| Derivative Asset |
43
|
570
|
| Derivative Liability |
(1,148)
|
(369)
|
| Derivatives in Fair Value Hedging Relationships | Interest Rate Contracts |
|
|
| Derivative [Line Items] |
|
|
| Derivative, Notional Amount |
4,054
|
4,972
|
| Derivative Asset |
0
|
3
|
| Derivative Liability |
(445)
|
(307)
|
| Derivatives in Net Investment Hedging Relationships | Foreign Exchange Contract |
|
|
| Derivative [Line Items] |
|
|
| Derivative, Notional Amount |
10,349
|
7,943
|
| Derivative Asset |
4
|
561
|
| Derivative Liability |
(685)
|
(1)
|
| Designated as Hedging Instrument |
|
|
| Derivative [Line Items] |
|
|
| Derivative, Notional Amount |
14,403
|
12,915
|
| Derivative Asset |
4
|
564
|
| Derivative Liability |
(1,130)
|
(308)
|
| Not Designated as Hedging Instrument | Foreign Exchange Contract |
|
|
| Derivative [Line Items] |
|
|
| Derivative, Notional Amount |
5,698
|
5,625
|
| Derivative Asset |
39
|
6
|
| Derivative Liability |
$ (18)
|
$ (61)
|