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Goodwill and Intangible Assets - Changes In Carrying Amount of Goodwill by Reporting Unit (Details)
$ in Millions
 6 Months Ended
Jul. 03, 2022
USD ($)
Goodwill [Roll Forward]  
Goodwill, beginning of period $ 20,098 [1]
Other (96) [2]
Goodwill, end of period 20,002 [1]
Aerospace  
Goodwill [Roll Forward]  
Goodwill, beginning of period 3,039 [1]
Other (68) [2]
Goodwill, end of period 2,971 [1]
Marine Systems  
Goodwill [Roll Forward]  
Goodwill, beginning of period 297 [1]
Other 0 [2]
Goodwill, end of period 297 [1]
Combat Systems  
Goodwill [Roll Forward]  
Goodwill, beginning of period 2,827 [1]
Other (20) [2]
Goodwill, end of period 2,807 [1]
Technologies  
Goodwill [Roll Forward]  
Goodwill, beginning of period 13,935 [1]
Other (8) [2]
Goodwill, end of period 13,927 [1]
Accumulated impairment losses $ 1,800
[1] Goodwill in the Technologies reporting unit was net of $1.8 billion of accumulated impairment losses.
[2] Consisted primarily of adjustments for foreign currency translation.