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Segment Information (Segment Profit by Reportable Segment) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2017 | Dec. 31, 2016
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Total operating earnings | $ 399 | $ 542 | $ 661 | $ 1,076
Operating Segments |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Total operating earnings | 734 | 696 | 1,329 | 1,357
Operating Segments | Pharmaceutical |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Total operating earnings | 514 | 537 | 981 | 1,071
Operating Segments | Medical |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Total operating earnings | 220 | 159 | 348 | 286
Corporate |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Total operating earnings | $ (335) | $ (154) | $ (668) | $ (281)

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