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Segment Information (Tables)
 3 Months Ended
Apr. 03, 2022
Segment Reporting [Abstract]  
Summary Of Financial Information For Each Of Our Segments
Summary financial information for each of our segments follows:
Revenue (a)Operating Earnings
Three Months EndedApril 3, 2022April 4, 2021April 3, 2022April 4, 2021
Aerospace$1,903 $1,887 $243 $220 
Marine Systems2,651 2,483 211 200 
Combat Systems1,675 1,820 227 244 
Technologies3,163 3,199 298 306 
Corporate (b)— — (71)(32)
Total$9,392 $9,389 $908 $938 
(a)See Note B for additional revenue information by segment.
(b)Corporate operating results consist primarily of equity-based compensation expense.