CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
Net income	$ 820		$ 968		$ 966
Other comprehensive income (loss):
Foreign currency translation adjustments	30		(28)		6
Unrealized gains (losses) on hedging instruments	3	[1]	(10)	[1]	5	[1]
Pension and postretirement benefit plans:
Amortization of net loss and prior service cost previously recognized	42	[2]	30	[2]	25	[2]
Net prior service credit (costs) arising during the period	3	[3]	(1)	[3]	19	[3]
Net loss arising during the period	(178)	[4]	(189)	[4]	(145)	[4]
Net change in pension and postretirement benefit plans	(133)		(160)		(101)
Total other comprehensive loss	(100)		(198)		(90)
Comprehensive income	720		770		876
Less: Comprehensive income attributable to noncontrolling interests	10		12		11
Comprehensive income attributable to L-3	$ 710		$ 758		$ 865

[1] Net of income taxes of $2 million in 2012, income tax benefits of $7 million in 2011, and income taxes of $4 million in 2010

[2] Net of income taxes of $26 million in 2012, $18 million in 2011 and $16 million in 2010

[3] Net of income taxes of $2 million in 2012, income tax benefits of $1 million in 2011, and income taxes of $12 million in 2010

[4] Net of income tax benefits of $105 million in 2012, $87 million in 2011, and $97 million in 2010