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Fair Value Measurements (Fair Value of Assets and Liabilities Measured on a Recurring Basis) (Details) - USD ($) $ in Millions | Mar. 31, 2018 | Jun. 30, 2017
--- | --- | ---
Assets: |  |
Total available-for-sale securities |  | $ 65
Recurring |  |
Assets: |  |
Cash equivalents | $ 548 | 739
Forward contracts | (58) | (21)
Total available-for-sale securities | 0 | 65
Other investments | 115 | 116
Liabilities: |  |
Contingent Consideration | (14) | (32)
Recurring | Level 1 |  |
Assets: |  |
Cash equivalents | 548 | 739
Forward contracts | 0 | 0
Total available-for-sale securities | 0 | 0
Other investments | 115 | 116
Liabilities: |  |
Contingent Consideration | 0 | 0
Recurring | Level 2 |  |
Assets: |  |
Cash equivalents | 0 | 0
Forward contracts | (58) | (21)
Total available-for-sale securities | 0 | 65
Other investments | 0 | 0
Liabilities: |  |
Contingent Consideration | 0 | 0
Recurring | Level 3 |  |
Assets: |  |
Cash equivalents | 0 | 0
Forward contracts | 0 | 0
Total available-for-sale securities | 0 | 0
Other investments | 0 | 0
Liabilities: |  |
Contingent Consideration | (14) | $ (32)
Disposal Group, Held-for-sale, Not Discontinued Operations | China Business |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets held for sale | 2,216 |
Liabilities related to assets held for sale | $ 1,339 |

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