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Segment Information (Segment Profit by Reportable Segment) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2016
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Total operating earnings | $ 126 | $ 2,120 | $ 2,459
Operating Segments |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Total operating earnings | 2,654 | 2,759 | 2,945
Operating Segments | Pharmaceutical |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Total operating earnings | 1,992 | 2,187 | 2,488
Operating Segments | Medical |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Total operating earnings | 662 | 572 | 457
Corporate |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Total operating earnings | $ (2,528) | $ (639) | $ (486)

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