Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 29, 2013		Sep. 30, 2012
Operating activities
Net earnings	$ 2,493		$ 2,176
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	704		711
Stock-based compensation	150		129
Severance charges	30	[1]	23	[1]
Changes in operating assets and liabilities:
Receivables, net	(310)		(365)
Inventories, net	18		(387)
Accounts payable	(119)		(86)
Customer advances and amounts in excess of costs incurred	(157)		(3)
Postretirement benefit plans	(20)		329
Income taxes	690		48
Other, net	129		301
Net cash provided by operating activities	3,608		2,876
Investing activities
Capital expenditures	(491)		(514)
Acquisitions of businesses and investments in affiliates	(266)		(29)
Other, net	(27)		16
Net cash used for investing activities	(784)		(527)
Financing activities
Repurchases of common stock	(1,533)		(708)
Proceeds from stock option exercises	749		337
Dividends paid	(1,112)		(979)
Repayments of long-term debt	(150)
Other, net	(15)		71
Net cash used for financing activities	(2,061)		(1,279)
Net change in cash and cash equivalents	763		1,070
Cash and cash equivalents at beginning of period	1,898		3,582
Cash and cash equivalents at end of period	$ 2,661		$ 4,652

[1] Severance charges during the nine months ended September 29, 2013 consisted of amounts, net of state tax benefits, associated with the elimination of certain positions at our IS&GS business segment during the quarter ended March 31, 2013. Severance charges during the quarter and nine months ended September 30, 2012 consisted of amounts, net of state tax benefits, associated with the elimination of certain positions at our former Electronic Systems business segment (Note 8, under the caption "Severance Activities"). Severance charges for initiatives that are not significant are included in business segment operating profit.