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ACCOUNTING CHANGES OR RECENT ACCOUNTING PRONOUNCEMENTS - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions |  | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Jul. 01, 2017 | Jun. 29, 2018 | Jun. 29, 2018 | Jun. 30, 2017 | Sep. 29, 2017 | Jul. 02, 2016
Business Combination, Separately Recognized Transactions [Line Items] |  |  |  |  |  |
Reduction in prepaid income taxes |  | $ (483) | $ (483) | $ (952) |  |
Non-current deferred income taxes |  | 119 | 119 | 424 |  |
Reclassification of stranded tax effects of Tax and Jobs Act of 2017 from accumulated other comprehensive loss to retained earnings | $ 35 | $ 35 | 0 |  |  |
Increase in cost of sales and services |  |  | 4,066 | 3,854 |  |
Increase in engineering, selling and administrative expenses |  |  | 1,182 | 1,150 |  |
Increase in non-operating income |  |  | 156 | 166 |  |
Retained Earnings |  |  |  |  |  |
Business Combination, Separately Recognized Transactions [Line Items] |  |  |  |  |  |
Reclassification of stranded tax effects of Tax and Jobs Act of 2017 from accumulated other comprehensive loss to retained earnings |  |  | 35 |  |  |
Intra-entity Transfers of Assets Other Than Inventory |  |  |  |  |  |
Business Combination, Separately Recognized Transactions [Line Items] |  |  |  |  |  |
Reduction in prepaid income taxes |  |  |  |  | $ 27 |
Non-current deferred income taxes |  |  |  |  | $ 27 |
ASC 606 |  |  |  |  |  |
Business Combination, Separately Recognized Transactions [Line Items] |  |  |  |  |  |
Decrease in revenue from product sales and services |  |  | 14 | 3 |  |
Operating income (loss) |  |  | $ (19) | $ (10) |  |
Operating income (loss), per diluted share (in dollars per share) |  |  | $ (0.15) | $ (0.08) |  |
ASC 606 | Retained Earnings |  |  |  |  |  |
Business Combination, Separately Recognized Transactions [Line Items] |  |  |  |  |  |
Cumulative effect adjustment as reduction of opening balance of retained earnings |  |  |  |  |  | $ 15
ASU 2017-07 |  |  |  |  |  |
Business Combination, Separately Recognized Transactions [Line Items] |  |  |  |  |  |
Increase in cost of sales and services |  |  | $ 147 | $ 132 |  |
Increase in engineering, selling and administrative expenses |  |  | 37 | 32 |  |
Increase in non-operating income |  |  | $ 184 | $ 164 |  |

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