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Divestitures and Acquisitions (Narrative) (Details) - USD ($) $ in Millions |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | ---
Aug. 02, 2021 | Aug. 31, 2018 | Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2020
Business Acquisition |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  |  | $ 22 | $ 3 | $ 0
Proceeds from divestitures, net of cash sold |  |  | 923 | 0 | 0
Assets held for sale |  |  | 0 | 1,101 |
Liabilities related to assets held for sale |  |  | 0 | 96 |
naviHealth [Member] |  |  |  |  |
Business Acquisition |  |  |  |  |
Proceeds from divestitures, net of cash sold |  | $ 737 |  |  |
Gain on Sale of Investments |  |  |  |  | 579
Cordis Divestiture |  |  |  |  |
Business Acquisition |  |  |  |  |
Proceeds from divestitures, net of cash sold | $ 923 |  | $ 923 |  |
Disposal Group, Including Discontinued Operation, Goodwill |  |  |  | (388) |
Write-down of assets held for sale |  |  |  | $ 60 |
naviHealth [Member] |  |  |  |  |
Business Acquisition |  |  |  |  |
Gain on Sale of Investments |  |  |  |  | $ 579

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