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PENSION AND OTHER POSTRETIREMENT BENEFITS - Funded Status of Defined Benefit Plans (Details) - USD ($) $ in Millions | Jun. 29, 2018 | Jun. 30, 2017 | Jul. 01, 2016
--- | --- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | $ 5,305 | $ 5,133 | $ 4,489
Projected benefit obligation | (6,007) | (6,405) | (6,782)
Funded status | (702) | (1,272) |
Other non-current assets |  |  |
Consolidated Balance Sheet line item amounts: |  |  |
Other non-current assets | 15 | 9 |
Compensation and benefits |  |  |
Consolidated Balance Sheet line item amounts: |  |  |
Compensation and benefits | (3) | (3) |
Defined benefit plans |  |  |
Consolidated Balance Sheet line item amounts: |  |  |
Defined benefit plans | (714) | (1,278) |
Pension |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 5,098 | 4,921 | 4,273
Projected benefit obligation | (5,774) | (6,140) | (6,471)
Funded status | (676) | (1,219) |
Pension | Other non-current assets |  |  |
Consolidated Balance Sheet line item amounts: |  |  |
Other non-current assets | 15 | 9 |
Pension | Compensation and benefits |  |  |
Consolidated Balance Sheet line item amounts: |  |  |
Compensation and benefits | (2) | (2) |
Pension | Defined benefit plans |  |  |
Consolidated Balance Sheet line item amounts: |  |  |
Defined benefit plans | (689) | (1,226) |
Other Benefits |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 207 | 212 | 216
Projected benefit obligation | (233) | (265) | $ (311)
Funded status | (26) | (53) |
Other Benefits | Other non-current assets |  |  |
Consolidated Balance Sheet line item amounts: |  |  |
Other non-current assets | 0 | 0 |
Other Benefits | Compensation and benefits |  |  |
Consolidated Balance Sheet line item amounts: |  |  |
Compensation and benefits | (1) | (1) |
Other Benefits | Defined benefit plans |  |  |
Consolidated Balance Sheet line item amounts: |  |  |
Defined benefit plans | $ (25) | $ (52) |

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