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EQUITY METHOD INVESTMENT AND NOTE RECEIVABLE - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended
--- | --- | --- | --- | --- | ---
Aug. 02, 2024 | May 31, 2023 | Aug. 31, 2024 | Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |
Interest income |  |  |  | $ 32 | $ 58 | $ 105 | $ 96
Loss on Copeland note receivable |  |  |  | 279 | $ 0 | 279 | $ 0
Loss on Copeland note receivable, net of tax |  |  |  |  |  | $ 217 |
Loss from equity method investment (in dollars per share) |  |  |  |  |  | $ 0.38 |
Copeland |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |
Equity method investment |  |  |  | 1,008 |  | $ 1,008 |
Copeland | Related Party |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |
Interest income |  |  |  | $ 24 |  | 86 |
Copeland |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |
Noncontrolling interest, ownership percentage by parent |  | 40.00% |  |  |  |  |
Copeland |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |
Proceeds from divestiture |  | $ 9,700 |  |  |  |  |
Notes receivable, consideration |  | $ 2,250 |  |  |  | $ 1,900 |
Copeland | Subsequent Event [Member] |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |
Proceeds from sale of notes receivable | $ 1,900 |  |  |  |  |  |
Copeland | Forecast |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |
Proceeds from sale of equity method investments |  |  | $ 1,500 |  |  |  |
Future indemnity obligations |  |  | $ 33 |  |  |  |

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