Business Combination - Fair Value Estimates of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions	6 Months Ended	9 Months Ended
	Jul. 03, 2020	Jul. 03, 2020	Jan. 03, 2020	Sep. 27, 2019
Fair Value
Goodwill	$ 19,015	$ 19,015	$ 20,001
Measurement Period Adjustments
Goodwill	(64)
L3Harris
Fair Value
Receivables	829	829		$ 849
Contract assets	1,651	1,651		1,708
Inventories	983	983		1,056
Other current assets	501	501		517
Property, plant and equipment	1,219	1,219		1,176
Operating lease right-of-use assets	812	812		704
Goodwill	14,582	14,582		15,423
Other intangible assets	8,458	8,458		6,768
Other non-current assets	314	314		327
Total assets acquired	29,349	29,349		28,528
Accounts payable	885	885		898
Contract liabilities	726	726		722
Other current liabilities	1,073	1,073		772
Operating lease liabilities	760	760		715
Defined benefit plans	1,411	1,411		1,411
Long-term debt, net	3,548	3,548		3,548
Other long-term liabilities	2,141	2,141		1,661
Total liabilities assumed	10,544	10,544		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		(57)
Inventories		(73)
Other current assets		(16)
Property, plant and equipment		43
Operating lease right-of-use assets		108
Goodwill		(841)
Other intangible assets		1,690
Other non-current assets		(13)
Total assets acquired		821
Accounts payable		(13)
Contract liabilities		4
Other current liabilities		301
Operating lease liabilities		45
Defined benefit plans		0
Long-term debt, net		0
Other long-term liabilities		480
Total liabilities assumed		817
Net assets acquired		4
Noncontrolling interests		(4)
Total net consideration transferred		$ 0