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Fair Value Measurements - Assets and Liabilities Measured on a Recurring Basis (Details) - Fair Value, Measurements, Recurring - Fair Value - USD ($) $ in Millions | Dec. 29, 2017 | Jun. 30, 2017
--- | --- | ---
Assets |  |
Deferred compensation plan assets | $ 87 | $ 75
Liabilities |  |
Deferred compensation plan liabilities | 154 | 126
Equity securities and mutual funds |  |
Liabilities |  |
Deferred compensation plan liabilities | 44 | 46
Common/collective trusts and guaranteed investment contracts |  |
Liabilities |  |
Investments measured at NAV, liabilities | 110 | 80
Corporate-owned life insurance |  |
Assets |  |
Deferred compensation plan assets | 26 | 25
Equity fund |  |
Assets |  |
Deferred compensation plan assets | 61 | 50
Level 1 | Equity securities and mutual funds |  |
Liabilities |  |
Deferred compensation plan liabilities | $ 44 | $ 46

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