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Segment Information (Narrative) (Details) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Mar. 31, 2024 USD ($) | Sep. 30, 2023 USD ($) | Mar. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Sep. 30, 2022 USD ($) | Mar. 31, 2024 USD ($) Segments segment | Mar. 31, 2023 USD ($)
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Number of reportable segments | segment |  |  |  |  |  | 2 |
Goodwill impairment |  |  |  |  |  | $ 671 |
Project costs on investment and other spending | $ 17 |  | $ 9 |  |  | 37 | $ 20
Global Medical Products and Distribution |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Goodwill impairment | $ 90 | $ 581 |  | $ 709 | $ 154 | $ 671 | $ 863
Other Segments |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Number of operating segments | Segments |  |  |  |  |  | 3 |
Goodwill impairment |  |  |  |  |  | $ 0 |

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