Condensed Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Mar. 30, 2012		Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 493	[1]	$ 764
Billed receivables, net of allowances of $29 in 2012 and $27 in 2011	1,268	[1]	1,240
Contracts in process	2,826	[1]	2,629
Inventories	360	[1]	317
Deferred income taxes	98	[1]	99
Other current assets	192	[1]	195
Total current assets	5,237	[1]	5,244
Property, plant and equipment, net	948	[1]	934
Goodwill	8,859	[1]	8,697
Identifiable intangible assets	428	[1]	410
Deferred debt issue costs	37	[1]	33
Other assets	190	[1]	179
Total assets	15,699	[1]	15,497
Current liabilities:
Accounts payable, trade	550	[1]	432
Accrued employment costs	636	[1]	631
Accrued expenses	520	[1]	616
Advance payments and billings in excess of costs incurred	594	[1]	564
Income taxes	71	[1]	40
Other current liabilities	397	[1]	407
Total current liabilities	2,768	[1]	2,690
Pension and postretirement benefits	1,113	[1]	1,137
Deferred income taxes	411	[1]	385
Other liabilities	444	[1]	436
Long-term debt	4,126	[1]	4,125
Total liabilities	8,862	[1]	8,773
Commitments and contingencies (see Note16)		[1]
L-3 shareholders' equity:
L-3 Communications Holdings, Inc.'s common stock: $.01 par value; 300,000,000 shares authorized, 98,190,977 shares outstanding at March 30, 2012 and 98,979,411 shares outstanding at December 31, 2011 (L-3 Communications Corporation's common stock: $.01 par value, 100 shares authorized, issued and outstanding)	5,122	[1]	5,064
L-3 Communications Holdings, Inc.'s treasury stock (at cost), 47,306,385 shares at March 30, 2012 and 45,314,918 shares at December 31, 2011	(3,754)	[1]	(3,616)
Retained earnings	5,792	[1]	5,641
Accumulated other comprehensive loss	(411)	[1]	(454)
Total L-3 shareholders' equity	6,749	[1]	6,635
Noncontrolling interests	88	[1]	89
Total equity	6,837	[1]	6,724
Total liabilities and equity	$ 15,699	[1]	$ 15,497

[1] Unaudited