BUSINESS SEGMENTS Segment and Geographical Information, By Segment (Details) - USD ($) $ in Millions	12 Months Ended
Jun. 28, 2019	Jun. 29, 2018	Jun. 30, 2017
Segment Reporting Information [Line Items]
Capital Expenditures	$ 161	$ 136	$ 119
Depreciation and Amortization	258	259	311
Revenue	6,801	6,168	5,897
U.S. operations
Segment Reporting Information [Line Items]
Revenue	6,530	5,854	5,637
Long-lived assets	866	892	896
International Operations
Segment Reporting Information [Line Items]
Revenue	271	314	260
Long-lived assets	28	8	8
Discontinued Operations
Segment Reporting Information [Line Items]
Capital Expenditures	0	0	4
Depreciation and Amortization	0	0	39
Communication Systems
Segment Reporting Information [Line Items]
Revenue	2,177	1,904	1,754
Communication Systems \| U.S. operations
Segment Reporting Information [Line Items]
Revenue	1,213	983	811
Communication Systems \| International Operations
Segment Reporting Information [Line Items]
Revenue	964	921	943
Electronic Systems
Segment Reporting Information [Line Items]
Revenue	2,583	2,365	2,245
Electronic Systems \| U.S. operations
Segment Reporting Information [Line Items]
Revenue	2,095	1,890	1,769
Electronic Systems \| International Operations
Segment Reporting Information [Line Items]
Revenue	488	475	476
Space and Intelligence Systems
Segment Reporting Information [Line Items]
Revenue	2,057	1,913	1,904
Space and Intelligence Systems \| U.S. operations
Segment Reporting Information [Line Items]
Revenue	2,003	1,861	1,821
Space and Intelligence Systems \| International Operations
Segment Reporting Information [Line Items]
Revenue	54	52	83
Operating Segments \| Communication Systems
Segment Reporting Information [Line Items]
Capital Expenditures	33	26	14
Depreciation and Amortization	50	57	64
Revenue	2,177	1,904	1,754
Operating Segments \| Electronic Systems
Segment Reporting Information [Line Items]
Capital Expenditures	74	57	40
Depreciation and Amortization	50	44	29
Revenue	2,583	2,365	2,245
Operating Segments \| Space and Intelligence Systems
Segment Reporting Information [Line Items]
Capital Expenditures	31	33	34
Depreciation and Amortization	33	36	37
Revenue	2,057	1,913	1,904
Corporate
Segment Reporting Information [Line Items]
Capital Expenditures	23	20	27
Depreciation and Amortization	125	122	142
Revenue	$ (16)	$ (14)	$ (6)

The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Topic 280
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-Section 50
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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