Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 25, 2015	Sep. 26, 2014
Operating activities:
Net (loss) income	$ (63)	$ 470
Depreciation of property, plant and equipment	129	127
Amortization of intangibles and other assets	35	38
Deferred income tax (benefit) provision	(21)	91
Stock-based employee compensation expense	36	39
Excess income tax benefits related to share-based payment arrangements	(24)	(16)
Contributions to employee savings plans in L-3 Holdings' common stock	95	105
Impairment charge	491
Amortization of pension and postretirement benefit plans net loss and prior service cost	50	11
Amortization of bond discounts and deferred debt issue costs (included in interest expense)	6	5
Loss related to business divestitures	29
Other non-cash items	(4)	(5)
Changes in operating assets and liabilities, excluding amounts from acquisitions and divestitures:
Billed receivables	48	118
Contracts in process	(165)	(144)
Inventories	(77)	(11)
Other assets	(13)
Accounts payable, trade	121	(119)
Accrued employment costs	47	26
Accrued expenses	(40)	(57)
Advance payments and billings in excess of costs incurred	2	39
Income taxes		(4)
Other current liabilities	(11)	(40)
Pension and postretirement benefits	(18)	(40)
All other operating activities	(22)	(28)
Net cash from operating activities	631	605
Investing activities:
Business acquisitions, net of cash acquired	(260)	(57)
Proceeds from the sale of businesses, net of closing date cash balances	308
Capital expenditures	(140)	(115)
Dispositions of property, plant and equipment	2	4
Other investing activities	4	6
Net cash used in investing activities	(86)	(162)
Financing activities:
Proceeds from sale of Senior Notes		996
Retirement of CODES		(935)
Borrowings under revolving credit facility	861	1,367
Repayment of borrowings under revolving credit facility	(861)	(1,367)
Common stock repurchased	(605)	(413)
Dividends paid on L-3 Holdings' common stock	(163)	(158)
Proceeds from exercises of stock options	41	87
Proceeds from employee stock purchase plan	26	27
Excess income tax benefits related to share-based payment arrangements	24	16
Debt issue costs		(8)
Employee restricted stock units surrendered in lieu of income tax withholding	(33)	(27)
Other financing activities	(1)	(11)
Net cash used in financing activities	(711)	(426)
Effect of foreign currency exchange rate changes on cash and cash equivalents	(14)	(9)
Change in cash balance in assets held for sale	61
Net (decrease) increase in cash and cash equivalents	(119)	8
Cash and cash equivalents, beginning of the period	442	500
Cash and cash equivalents, end of the period	$ 323	$ 508