Business Group Information

6 Months Ended

Jun. 30, 2013

Segment Reporting [Abstract]

Business Group Information

BUSINESS GROUP INFORMATION

We operate in four business groups: Aerospace, Combat Systems, Marine Systems and Information Systems and Technology. We organize our business groups in accordance with the nature of products and services offered. These business groups derive their revenues from business aviation; combat vehicles, weapons systems and munitions; military and commercial shipbuilding and services; and communications and information technology, respectively. We measure each group’s profit based on operating earnings. As a result, we do not allocate net interest, other income and expense items, and income taxes to our business groups.

Summary financial information for each of our business groups follows:

	Revenues				Operating Earnings
Three Months Ended	July 1, 2012		June 30, 2013		July 1, 2012			June 30, 2013
Aerospace	$	1,592	$	2,053	$	257		$	389
Combat Systems	2,149		1,549		322			218
Marine Systems	1,653		1,759		183			178
Information Systems and Technology	2,528		2,550		226			198
Corporate*	—		—		(18		)	(23		)
	$	7,922	$	7,911	$	970		$	960

	Revenues				Operating Earnings
Six Months Ended	July 1, 2012		June 30, 2013		July 1, 2012			June 30, 2013
Aerospace	$	3,215	$	3,831	$	528		$	699
Combat Systems	4,060		3,102		525			433
Marine Systems	3,258		3,385		368			337
Information Systems and Technology	4,968		4,997		444			383
Corporate*	—		—		(35		)	(45		)
	$	15,501	$	15,315	$	1,830		$	1,807

*Corporate operating results primarily consists of stock option expense.