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Fair Value Measurements - Assets and Liabilities Measured on a Recurring Basis (Details) - USD ($) $ in Millions | Dec. 28, 2018 | Jun. 29, 2018
--- | --- | ---
Level 1 | Equity securities and mutual funds |  |
Liabilities |  |
Deferred compensation plan liabilities | $ 20 | $ 38
Level 1 | Equity and fixed income securities |  |
Assets |  |
Deferred compensation plan assets | 46 | 46
Fair Value |  |
Assets |  |
Deferred compensation plan assets | 129 | 136
Investments measured at NAV assets | 83 | 90
Liabilities |  |
Deferred compensation plan liabilities | 152 | 149
Fair Value | Equity securities and mutual funds |  |
Liabilities |  |
Deferred compensation plan liabilities | 20 | 38
Fair Value | Common/collective trusts and guaranteed investment contracts |  |
Liabilities |  |
Investments measured at NAV liabilities | 132 | 111
Fair Value | Equity and fixed income securities |  |
Assets |  |
Deferred compensation plan assets | 46 | 46
Fair Value | Equity and fixed income funds |  |
Assets |  |
Investments measured at NAV assets | 56 | 63
Fair Value | Corporate-owned life insurance |  |
Assets |  |
Investments measured at NAV assets | $ 27 | $ 27

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- Definition Fair value of investment other than investment in equity security, investment in debt security and equity method investment. Includes, but is not limited to, investment in certain entities that calculate net asset value per share. Example includes, but is not limited to, investment in hedge fund, venture capital fund, private equity fund, and real estate partnership or fund. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 6A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=99377789&loc=SL6742756-110258 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 35 -Paragraph 54B -URI http://asc.fasb.org/extlink&oid=99392525&loc=SL7495116-110257 + Details
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