Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2012		Sep. 25, 2011
Operating activities
Net earnings	$ 2,176		$ 1,972
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	711		739
Stock-based compensation	129		116
Severance charges	23	[1]	136	[1]
Reduction in tax expense from resolution of certain tax matters			(89)
Tax benefit related to discontinued operations			(81)
Changes in operating assets and liabilities:
Receivables, net	(365)		(853)
Inventories, net	(387)		575
Accounts payable	(86)		707
Customer advances and amounts in excess of costs incurred	(3)		(342)
Postretirement benefit plans	329		134
Income taxes	48		7
Other, net	301		143
Net cash provided by operating activities	2,876		3,164
Investing activities
Capital expenditures	(514)		(569)
Net cash provided by short-term investment transactions			510
Other, net	(33)		270
Net cash (used for) provided by investing activities	(547)		211
Financing activities
Repurchases of common stock	(708)		(2,317)
Dividends paid	(979)		(770)
Issuance of long-term debt, net of related costs			1,980
Proceeds from stock option exercises	337		81
Other, net	91		(46)
Net cash used for financing activities	(1,259)		(1,072)
Net change in cash and cash equivalents	1,070		2,303
Cash and cash equivalents at beginning of period	3,582		2,261
Cash and cash equivalents at end of period	$ 4,652		$ 4,564

[1] Severance charges for 2012 consisted of amounts, net of state tax benefits, associated with the elimination of certain positions at our Electronic Systems business segment. For 2011, severance charges consisted of amounts related to actions taken at various business segments as well as Corporate Headquarters (Note 8, under the caption "Severance Activities"). Severance charges for initiatives that are not significant are included in business segment operating profit.