BUSINESS COMBINIATION - Preliminary Measurement of Assets Acquired, Liabilities Assumed and Noncontrolling Interest (Details) - USD ($) $ in Millions	6 Months Ended
	Jan. 03, 2020	Jun. 29, 2019	Jun. 28, 2019	Jun. 29, 2018	Jun. 30, 2017
Preliminary Fair Value
Goodwill	$ 20,001		$ 5,340	$ 5,372	$ 5,366
L3Harris
Preliminary Fair Value
Receivables	834
Contract assets	1,667
Inventories	1,019
Other current assets	497
Property, plant and equipment	1,215
Operating lease right-of-use assets	704
Goodwill	14,649
Other intangible assets	7,877	$ 7,877
Other non-current assets	321
Total assets acquired	28,783
Accounts payable	884
Contract liabilities	718
Other current liabilities	832
Operating lease liabilities	715
Defined benefit plans	1,411
Long-term debt, net	3,548
Other long-term liabilities	1,870
Total liabilities assumed	9,978
Net assets acquired	18,805
Noncontrolling interests	(155)
Total net consideration transferred	18,650
Measurement Period Adjustments
Receivables	(15)
Contract assets	(41)
Inventories	(37)
Other current assets	(20)
Property, plant and equipment	39
Operating lease right-of-use assets	0
Goodwill	(774)
Other intangible assets	1,109
Other non-current assets	(6)
Total assets acquired	255
Accounts payable	(14)
Contract liabilities	(4)
Other current liabilities	60
Operating lease liabilities	0
Defined benefit plans	0
Long-term debt, net	0
Other long-term liabilities	209
Total liabilities assumed	251
Net assets acquired	4
Noncontrolling interests	(4)
Total net consideration transferred	$ 0
As Previously Reported | L3Harris
Preliminary Fair Value
Receivables		849
Contract assets		1,708
Inventories		1,056
Other current assets		517
Property, plant and equipment		1,176
Operating lease right-of-use assets		704
Goodwill		15,423
Other intangible assets		6,768
Other non-current assets		327
Total assets acquired		28,528
Accounts payable		898
Contract liabilities		722
Other current liabilities		772
Operating lease liabilities		715
Defined benefit plans		1,411
Long-term debt, net		3,548
Other long-term liabilities		1,661
Total liabilities assumed		9,727
Net assets acquired		18,801
Noncontrolling interests		(151)
Total net consideration transferred		$ 18,650