DISCONTINUED OPERATIONS AND DIVESTITURES - Divestitures (Details) - Discontinued Operations, Held-for-sale or Disposed of by Sale - USD ($) $ in Millions	12 Months Ended
	Jun. 28, 2019	Jun. 29, 2018	Jun. 30, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue from product sales and services	$ 0	$ 0	$ 1,039
Income before income taxes	(5)	(8)	(184)
Harris Night Vision
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue from product sales and services	166	148	121
Income before income taxes	27	$ 23	$ 11
Receivables	18
Inventories	52
Property, plant and equipment	29
Goodwill	30
Other intangible assets	4
Assets of disposal group held for sale	133
Accounts payable	13
Contract liabilities	1
Compensation and benefits	3
Other accrued items	3
Defined benefit plans	16
Liabilities of disposal group held for sale	$ 36