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Investments, Forward Contracts and Fair Value Measurements - Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Millions | Jun. 29, 2019 | Jun. 30, 2018
--- | --- | ---
Assets: |  |
Total debt available-for-sale securities | $ 0.6 | $ 189.6
Liability: |  |
Foreign currency forward contracts | 4.0 | 11.7
Fair value of contingent consideration | 38.4 |
Contingent liability, noncurrent | 37.7 | 0.0
Contingent liability, current | 0.7 |
U.S. treasuries |  |
Assets: |  |
Total debt available-for-sale securities |  | 35.9
U.S. agencies |  |
Assets: |  |
Total debt available-for-sale securities |  | 13.2
Municipal bonds and sovereign debt instruments |  |
Assets: |  |
Total debt available-for-sale securities |  | 2.7
Asset-backed securities |  |
Assets: |  |
Total debt available-for-sale securities | 0.6 | 23.5
Corporate securities |  |
Assets: |  |
Total debt available-for-sale securities |  | 114.3
Recurring basis |  |
Assets: |  |
Total debt available-for-sale securities | 0.6 | 189.6
Marketable equity securities | 0.0 | 0.0
Money market funds | 322.9 | 354.9
Trading securities | 1.5 | 1.6
Foreign currency forward contracts | 1.2 | 2.7
Total assets | 326.2 | 548.8
Liability: |  |
Foreign currency forward contracts | 4.0 | 11.7
Fair value of contingent consideration | 38.4 | 0.0
Total liabilities | 42.4 | 11.7
Recurring basis | Cash and cash equivalents |  |
Assets: |  |
Total assets | 315.5 | 364.8
Recurring basis | Short-term investments |  |
Assets: |  |
Total assets | 1.5 | 169.3
Recurring basis | Restricted cash |  |
Assets: |  |
Total assets | 3.5 | 7.3
Recurring basis | Other current assets |  |
Assets: |  |
Total assets | 1.2 | 2.7
Recurring basis | Other non-current assets |  |
Assets: |  |
Total assets | 4.5 | 4.7
Recurring basis | Other current liabilities |  |
Liability: |  |
Total liabilities | 4.0 | 11.7
Recurring basis | U.S. treasuries |  |
Assets: |  |
Total debt available-for-sale securities | 0.0 | 35.9
Recurring basis | U.S. agencies |  |
Assets: |  |
Total debt available-for-sale securities | 0.0 | 13.2
Recurring basis | Municipal bonds and sovereign debt instruments |  |
Assets: |  |
Total debt available-for-sale securities | 0.0 | 2.7
Recurring basis | Asset-backed securities |  |
Assets: |  |
Total debt available-for-sale securities | 0.6 | 23.5
Recurring basis | Corporate securities |  |
Assets: |  |
Total debt available-for-sale securities | 0.0 | 114.3
Recurring basis | Certificate of deposits |  |
Assets: |  |
Total debt available-for-sale securities | 0.0 | 0.0
Recurring basis | Level 1 |  |
Assets: |  |
Total debt available-for-sale securities | 0.0 | 35.9
Marketable equity securities | 0.0 | 0.0
Money market funds | 322.9 | 354.9
Trading securities | 1.5 | 1.6
Foreign currency forward contracts | 0.0 | 0.0
Total assets | 324.4 | 392.4
Liability: |  |
Foreign currency forward contracts | 0.0 | 0.0
Fair value of contingent consideration | 0.0 | 0.0
Total liabilities | 0.0 | 0.0
Recurring basis | Level 1 | U.S. treasuries |  |
Assets: |  |
Total debt available-for-sale securities | 0.0 | 35.9
Recurring basis | Level 1 | U.S. agencies |  |
Assets: |  |
Total debt available-for-sale securities | 0.0 | 0.0
Recurring basis | Level 1 | Municipal bonds and sovereign debt instruments |  |
Assets: |  |
Total debt available-for-sale securities | 0.0 | 0.0
Recurring basis | Level 1 | Asset-backed securities |  |
Assets: |  |
Total debt available-for-sale securities | 0.0 | 0.0
Recurring basis | Level 1 | Corporate securities |  |
Assets: |  |
Total debt available-for-sale securities | 0.0 | 0.0
Recurring basis | Level 1 | Certificate of deposits |  |
Assets: |  |
Total debt available-for-sale securities | 0.0 | 0.0
Recurring basis | Level 2 |  |
Assets: |  |
Total debt available-for-sale securities | 0.6 | 153.7
Marketable equity securities | 0.0 | 0.0
Money market funds | 0.0 | 0.0
Trading securities | 0.0 | 0.0
Foreign currency forward contracts | 1.2 | 2.7
Total assets | 1.8 | 156.4
Liability: |  |
Foreign currency forward contracts | 4.0 | 11.7
Fair value of contingent consideration | 0.0 | 0.0
Total liabilities | 4.0 | 11.7
Recurring basis | Level 2 | U.S. treasuries |  |
Assets: |  |
Total debt available-for-sale securities | 0.0 | 0.0
Recurring basis | Level 2 | U.S. agencies |  |
Assets: |  |
Total debt available-for-sale securities | 0.0 | 13.2
Recurring basis | Level 2 | Municipal bonds and sovereign debt instruments |  |
Assets: |  |
Total debt available-for-sale securities | 0.0 | 2.7
Recurring basis | Level 2 | Asset-backed securities |  |
Assets: |  |
Total debt available-for-sale securities | 0.6 | 23.5
Recurring basis | Level 2 | Corporate securities |  |
Assets: |  |
Total debt available-for-sale securities | 0.0 | 114.3
Recurring basis | Level 2 | Certificate of deposits |  |
Assets: |  |
Total debt available-for-sale securities | 0.0 | 0.0
Recurring basis | Level 3 |  |
Assets: |  |
Total debt available-for-sale securities | 0.0 | 0.0
Marketable equity securities | 0.0 | 0.0
Money market funds | 0.0 | 0.0
Trading securities | 0.0 | 0.0
Foreign currency forward contracts | 0.0 | 0.0
Total assets | 0.0 | 0.0
Liability: |  |
Foreign currency forward contracts | 0.0 | 0.0
Fair value of contingent consideration | 38.4 | 0.0
Total liabilities | 38.4 | 0.0
Recurring basis | Level 3 | U.S. treasuries |  |
Assets: |  |
Total debt available-for-sale securities | 0.0 | 0.0
Recurring basis | Level 3 | U.S. agencies |  |
Assets: |  |
Total debt available-for-sale securities | 0.0 | 0.0
Recurring basis | Level 3 | Municipal bonds and sovereign debt instruments |  |
Assets: |  |
Total debt available-for-sale securities | 0.0 | 0.0
Recurring basis | Level 3 | Asset-backed securities |  |
Assets: |  |
Total debt available-for-sale securities | 0.0 | 0.0
Recurring basis | Level 3 | Corporate securities |  |
Assets: |  |
Total debt available-for-sale securities | 0.0 | 0.0
Recurring basis | Level 3 | Certificate of deposits |  |
Assets: |  |
Total debt available-for-sale securities | $ 0.0 | $ 0.0

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