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PENSION AND OTHER POSTRETIREMENT BENEFITS - Fair Value of Deferred Compensation Plans (Details) - USD ($) $ in Millions | Jun. 29, 2018 | Jun. 30, 2017 | Jul. 01, 2016
--- | --- | --- | ---
Assets |  |  |
Fair value of plan assets | $ 5,305 | $ 5,133 | $ 4,489
Investments measured at NAV assets | 1,240 | 920 |
Level 1 | Equity securities and mutual funds |  |  |
Liabilities |  |  |
Fair value of plan liabilities | 38 | 46 |
Level 1 | Equity and fixed income securities |  |  |
Assets |  |  |
Fair value of plan assets | 46 | 37 |
Fair Value |  |  |
Assets |  |  |
Fair value of plan assets | 136 | 112 |
Investments measured at NAV assets | 90 | 75 |
Liabilities |  |  |
Fair value of plan liabilities | 149 | 126 |
Fair Value | Equity securities and mutual funds |  |  |
Liabilities |  |  |
Fair value of plan liabilities | 38 | 46 |
Fair Value | Common/collective trusts and guaranteed investment contracts |  |  |
Liabilities |  |  |
Investment measured at NAV liabilities | 111 | 80 |
Fair Value | Equity and fixed income securities |  |  |
Assets |  |  |
Fair value of plan assets | 46 | 37 |
Fair Value | Equity and fixed income funds |  |  |
Assets |  |  |
Investments measured at NAV assets | 63 | 50 |
Fair Value | Corporate-owned life insurance |  |  |
Assets |  |  |
Investments measured at NAV assets | $ 27 | $ 25 |

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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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