Segment Information (Tables)

3 Months Ended

Mar. 29, 2020

Segment Reporting [Abstract]

Summary Of Financial Information For Each Of Our Segments

Summary financial information for each of our segments follows:

	Revenue				Operating Earnings
Three Months Ended	March 29, 2020		March 31, 2019		March 29, 2020			March 31, 2019
Aerospace	$	1,691	$	2,240	$	240		$	328
Combat Systems	1,708		1,636		223			206
Information Technology	1,988		2,169		150			156
Mission Systems	1,116		1,158		148			148
Marine Systems	2,246		2,058		184			180
Corporate	—		—		(4		)	(4		)
Total	$	8,749	$	9,261	$	941		$	1,014