UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	6 Months Ended
	Jun. 29, 2018	Jun. 30, 2017
Operating activities:
Net income	$ 587	$ 375
Less: income from discontinued operations, net of tax	(206)	(23)
Income from continuing operations	381	352
Depreciation of property, plant and equipment	90	82
Amortization of intangibles and other assets	26	24
Deferred income tax provision	21	25
Stock-based compensation expense	34	28
Contributions to employee savings plans in L3's common stock	68	56
Amortization of pension and postretirement benefit plans net loss and prior service cost	35	30
Gain on sale of property, plant and equipment	0	(42)
Gain on sale of the Crestview Aerospace and TCS businesses	(48)	0
Debt retirement charge	48	0
Other non-cash items	1	6
Changes in operating assets and liabilities, excluding amounts from acquisitions and divestitures, and discontinued operations:
Billed receivables	(137)	(88)
Contract assets	(266)	0
Contracts in process	0	(123)
Inventories	(10)	(12)
Prepaid expenses and other current assets	(82)	(15)
Accounts payable, trade	61	(99)
Accrued employment costs	(38)	(28)
Accrued expenses	63	158
Contract liabilities	(2)	0
Advance payments and billing in excess of costs incurred	0	(10)
Income taxes	(22)	(12)
All other operating activities	(45)	(17)
Net cash from operating activities from continuing operations	178	315
Investing activities:
Business acquisitions, net of cash acquired	(69)	(191)
Proceeds from the sale of businesses, net of closing date cash balances	535	16
Capital expenditures	(108)	(96)
Dispositions of property, plant and equipment	1	65
Other investing activities	(29)	(1)
Net cash from (used in) investing activities from continuing operations	330	(207)
Financing activities:
Proceeds from sale of senior notes	1,798	0
Repurchases and redemptions of senior notes	(1,263)	0
Borrowings under revolving credit facility	501	1,158
Repayments of borrowings under revolving credit facility	(501)	(1,158)
Common stock repurchased	(287)	(26)
Dividends paid	(128)	(119)
Proceeds from exercises of stock options	103	25
Proceeds from employee stock purchase plan	17	16
Repurchases of common stock to satisfy tax withholding obligations	(24)	(18)
Debt issue costs	(13)	0
Other financing activities	(6)	(8)
Net cash from (used in) financing activities from continuing operations	197	(130)
Effect of foreign currency exchange rate changes on cash and cash equivalents	(8)	10
Net cash from (used in) discontinued operations:
Operating activities	9	36
Investing activities	(2)	(2)
Net cash from discontinued operations	7	34
Net increase in cash and cash equivalents	704	22
Cash and cash equivalents, beginning of the period	662	363
Cash and cash equivalents, end of the period	$ 1,366	$ 385