Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
Operating activities
Net earnings	$ 2,745		$ 2,655		$ 2,878
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	988		1,008		1,052
Stock-based compensation	167		157		168
Deferred income taxes	930		(2)		452
Severance and other charges	48	[1]	136	[1]	220	[1]
Reduction in tax expense from resolution of certain tax matters			(89)		(10)
Tax expense related to Medicare Part D reimbursement					96
Net adjustments related to discontinued operations			(16)		(257)
Changes in operating assets and liabilities:
Receivables, net	(460)		(363)		3
Inventories, net	(422)		(74)		(207)
Accounts payable	(236)		609		(364)
Customer advances and amounts in excess of costs incurred	57		502		706
Postretirement benefit plans	(1,883)		(393)		(1,027)
Income taxes	(535)		304		70
Other, net	162		(181)		21
Net cash provided by operating activities	1,561		4,253		3,801
Investing activities
Capital expenditures	(942)		(987)		(1,074)
Acquisitions of businesses / investments in affiliates	(304)		(649)		(148)
Net proceeds from sale of EIG					798
Net cash provided by (used for) short-term investment transactions			510		(171)
Other, net	24		313		22
Net cash used for investing activities	(1,222)		(813)		(573)
Financing activities
Repurchases of common stock	(990)		(2,465)		(2,420)
Proceeds from stock option exercises	440		116		59
Dividends paid	(1,352)		(1,095)		(969)
Premium paid on debt exchange	(225)
Issuance of long-term debt, net of related costs			1,980
Repayments of long-term debt			(632)
Other, net	104		(23)		(28)
Net cash used for financing activities	(2,023)		(2,119)		(3,358)
Net change in cash and cash equivalents	(1,684)		1,321		(130)
Cash and cash equivalents at beginning of year	3,582		2,261		2,391
Cash and cash equivalents at end of year	$ 1,898		$ 3,582		$ 2,261

[1] Severance and other charges include the severance charges recorded in 2012 associated with our Aeronautics business segment and the reorganization of our former Electronic Systems business segment; for 2011, include the severance charges associated with our Aeronautics, IS&GS, and Space Systems business segments, and Corporate Headquarters; and for 2010, include the charges related to the VESP and the facilities consolidation within our MST business segment (Note 13). Severance charges for initiatives that are not significant are included in business segment operating profit.