Business Combination - Preliminary Measurement of Assets Acquired, Liabilities Assumed and Noncontrolling Interest (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Apr. 03, 2020	Apr. 03, 2020	Jan. 03, 2020	Jun. 29, 2019
Preliminary Fair Value
Goodwill	$ 19,265	$ 19,265	$ 20,001
Measurement Period Adjustments
Other (including adjustments to previously estimated fair value of assets acquired and liabilities assumed)	188
L3Harris
Preliminary Fair Value
Receivables	829	829		$ 849
Contract assets	1,652	1,652		1,708
Inventories	982	982		1,056
Other current assets	491	491		517
Property, plant and equipment	1,218	1,218		1,176
Operating lease right-of-use assets	704	704		704
Goodwill	14,838	14,838		15,423
Other intangible assets	7,974	7,974		6,768
Other non-current assets	318	318		327
Total assets acquired	29,006	29,006		28,528
Accounts payable	881	881		898
Contract liabilities	724	724		722
Other current liabilities	971	971		772
Operating lease liabilities	715	715		715
Defined benefit plans	1,411	1,411		1,411
Long-term debt, net	3,548	3,548		3,548
Other long-term liabilities	1,951	1,951		1,661
Total liabilities assumed	10,201	10,201		9,727
Net assets acquired	18,805	18,805		18,801
Noncontrolling interests	(155)	(155)		(151)
Total net consideration transferred	$ 18,650	18,650		$ 18,650
Measurement Period Adjustments
Receivables		(20)
Contract assets		(56)
Inventories		(74)
Other current assets		(26)
Property, plant and equipment		42
Operating lease right-of-use assets		0
Other (including adjustments to previously estimated fair value of assets acquired and liabilities assumed)		(585)
Other intangible assets		1,206
Other non-current assets		(9)
Total assets acquired		478
Accounts payable		(17)
Contract liabilities		2
Other current liabilities		199
Operating lease liabilities		0
Defined benefit plans		0
Long-term debt, net		0
Other long-term liabilities		290
Total liabilities assumed		474
Net assets acquired		4
Noncontrolling interests		(4)
Total net consideration transferred		$ 0