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ACQUISITIONS AND DIVESTITURES - Narrative (Details) - USD ($) $ in Millions |  |  |  | 3 Months Ended | 9 Months Ended | 12 Months Ended |
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Mar. 12, 2025 | Nov. 15, 2024 | Oct. 11, 2023 | Jun. 30, 2025 | Jun. 30, 2024 | Mar. 31, 2024 | Jun. 30, 2023 | Dec. 31, 2022 | Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2023 | Sep. 30, 2023 | Sep. 30, 2024
Business Combination [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  | $ 4,553 | $ 4,380 |  |  |  | $ 13,161 | $ 12,873 |  |  |
Earnings before income taxes |  |  |  | 734 | 455 |  |  |  | 2,138 | 1,341 |  |  |
Acquisition/divestiture costs |  |  |  | 25 | 7 |  |  |  | 181 | 92 |  |  |
Purchase price of businesses, net of cash acquired |  |  |  |  |  |  |  |  | 36 | 8,342 |  |  |
Goodwill |  |  |  | 18,158 |  |  |  |  | 18,158 |  |  |  | $ 18,067
Gain on subordinated interest |  |  |  | 0 | 0 |  |  |  | 0 | 79 |  |  |
Loss on divestiture of business |  |  |  | $ 0 | 0 | $ 39 |  |  | $ 0 | 39 |  |  |
AspenTech |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total consideration paid in cash at closing | $ 7,200 |  |  |  |  |  |  |  |  |  |  |  |
Business combination, accrued deal fees | 76 |  |  |  |  |  |  |  |  |  |  |  |
Business combination, accrued deal fees, net of tax | 65 |  |  |  |  |  |  |  |  |  |  |  |
Settlement of AspenTech share awards | 76 |  |  |  |  |  |  |  |  |  |  |  |
Business combination, deal and transaction fees | 127 |  |  |  |  |  |  |  |  |  |  |  |
Business combination, deal and transaction fees, net of tax | $ 113 |  |  |  |  |  |  |  |  |  |  |  |
National Instruments |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total consideration paid in cash at closing |  |  | $ 8,467 |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |  | $ 1,700 |
Earnings before income taxes |  |  |  |  |  |  |  |  |  |  |  | $ 170 |
Amortization of intangible assets |  |  |  |  | 34 |  |  |  |  | 102 |  |  |
Net earnings from continuing operations common stockholders |  |  |  |  | $ 374 |  |  |  |  | $ 1,396 |  |  |
Acquisition/divestiture costs |  |  |  |  |  |  |  | $ 69 |  |  |  |  |
National Instruments | Backlog Amortization |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Amortization of intangible assets |  |  |  |  |  |  | $ 34 |  |  |  | $ 102 |  |
National Instruments | Business Combination, Pro Forma Information, Nonrecurring Adjustment, Inventory, Fair Value Adjustment |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Net earnings from continuing operations common stockholders |  |  |  |  |  |  |  |  |  |  | 213 |  |
National Instruments | Retention Bonus |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Net earnings from continuing operations common stockholders |  |  |  |  |  |  |  |  |  |  | $ 51 |  |
Open Grid Systems Limited |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price of businesses, net of cash acquired |  | $ 46 |  |  |  |  |  |  |  |  |  |  |
Goodwill |  | 32 |  |  |  |  |  |  |  |  |  |  |
Intangible assets |  | $ 20 |  |  |  |  |  |  |  |  |  |  |
Weighted-average useful life |  | 5 years |  |  |  |  |  |  |  |  |  |  |
Gain on subordinated interest |  |  |  |  |  | $ 79 |  |  |  |  |  |  |

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