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Divestitures and Acquisitions (Narrative) (Details) - USD ($) $ in Millions |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Aug. 02, 2021 | Sep. 30, 2023 | Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2021
Business Acquisition |  |  |  |  |
Proceeds from divestitures, net of cash sold |  |  | $ 0 | $ 923 | $ 0
Assets held for sale |  |  | 144 | 0 |
Liabilities related to assets held for sale |  |  | 42 | $ 0 |
Outcomes Divestiture |  |  |  |  |
Business Acquisition |  |  |  |  |
Assets held for sale |  |  | 138 |  |
Liabilities related to assets held for sale |  |  | $ 42 |  |
Subsequent Event |  |  |  |  |
Business Acquisition |  |  |  |  |
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal, Statement of Income or Comprehensive Income [Extensible Enumeration] |  | Gain (Loss) on Sale of Assets and Asset Impairment Charges |  |  |
Subsequent Event | Outcomes Divestiture |  |  |  |  |
Business Acquisition |  |  |  |  |
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal |  | $ 60 |  |  |
Cordis Divestiture |  |  |  |  |
Business Acquisition |  |  |  |  |
Proceeds from divestitures, net of cash sold | $ 923 |  |  |  |
Write-down of assets held for sale |  |  |  |  | $ 60

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