Business Combination - Fair Value Estimates of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions	9 Months Ended
	Oct. 02, 2020	Jul. 03, 2020	Jan. 03, 2020	Sep. 27, 2019
Fair Value
Goodwill	$ 18,992		$ 20,001
Measurement Period Adjustments
Goodwill	(91)
L3Harris
Fair Value
Receivables		$ 829		$ 849
Contract assets		1,651		1,708
Inventories		983		1,056
Other current assets		501		517
Property, plant and equipment		1,219		1,176
Operating lease right-of-use assets		812		704
Goodwill		14,582		15,423
Other intangible assets	$ 8,458	8,458		6,768
Other non-current assets		314		327
Total assets acquired		29,349		28,528
Accounts payable		885		898
Contract liabilities		726		722
Other current liabilities		1,073		772
Operating lease liabilities		760		715
Defined benefit plans		1,411		1,411
Long-term debt, net		3,548		3,548
Other long-term liabilities		2,141		1,661
Total liabilities assumed		10,544		9,727
Net assets acquired		18,805		18,801
Noncontrolling interests		(155)		(151)
Total net consideration transferred		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