Unaudited Condensed Consolidated Statements of Equity (USD $) In Millions, except Share data, unless otherwise specified	Total		L-3 Holdings' Common Stock	Additional Paid-in Capital	Treasury Stock	Retained Earnings	Accumulated Other Comprehensive Loss	Noncontrolling Interests
Beginning Balance at Dec. 31, 2010	$ 6,855		$ 1	$ 4,800	$ (2,658)	$ 4,877	$ (256)	$ 91
Beginning Balance, Shares at Dec. 31, 2010			108,600,000
Net income	453					447		6
Other comprehensive income	81						81
Distributions to noncontrolling interests	(6)							(6)
Cash dividends paid on common stock ($1.00 and $0.90 per share for the year 2012 and 2011, respectively)	(97)					(97)
Shares issued:
Employee savings plans	78			78
Employee savings plans, Shares			1,100,000
Exercise of stock options	20			20
Exercise of stock options, Shares			300,000
Employee stock purchase plan	23			23
Employee stock purchase plan, Shares			900,000
Stock-based compensation expense	34			34
Treasury stock purchased	(429)				(429)
Treasury stock purchased, Shares			(5,400,000)
Other	3			5		(2)
Other, Shares			100,000
Ending Balance at Jul. 01, 2011	7,015		1	4,960	(3,087)	5,225	(175)	91
Ending Balance, Shares at Jul. 01, 2011			105,600,000
Beginning Balance at Dec. 31, 2011	6,724		1	5,063	(3,616)	5,641	(454)	89
Beginning Balance, Shares at Dec. 31, 2011			99,000,000
Net income	411					406		5
Other comprehensive income	6						6
Distributions to noncontrolling interests	(5)							(5)
Cash dividends paid on common stock ($1.00 and $0.90 per share for the year 2012 and 2011, respectively)	(98)					(98)
Shares issued:
Employee savings plans	75			75
Employee savings plans, Shares			1,200,000
Exercise of stock options	9			9
Exercise of stock options, Shares			200,000
Employee stock purchase plan	21			21
Employee stock purchase plan, Shares			400,000
Stock-based compensation expense	33			33
Treasury stock purchased	(315)				(315)
Treasury stock purchased, Shares	(4,500,000)		(4,500,000)
Other	(1)			2		(3)
Ending Balance at Jun. 29, 2012	$ 6,860	[1]	$ 1	$ 5,203	$ (3,931)	$ 5,946	$ (448)	$ 89
Ending Balance, Shares at Jun. 29, 2012			96,300,000

[1] Unaudited