Condensed Consolidated Statements Of Cash Flows (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Cash flows - operation activities:
Net earnings	$ 2,922	$ 2,625
Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Share-based plans expense	148	141
Depreciation and amortization	1,313	1,237
Investment/asset impairment charges, net	59	50
Customer financing valuation provision	(4)	(220)
Loss/(gain) on disposal of discontinued operations	5	(1)
Loss/(gain) on dispositions, net	3	(20)
Other charges and credits, net	559	358
Excess tax benefits from share-based payment arrangements	(43)	(35)
Changes in assets and liabilities -
Accounts receivable	150	(911)
Inventories, net of advances and progress billings	(4,588)	(8,245)
Accounts payable	857	1,447
Accrued liabilities	(123)	(449)
Advances and billings in excess of related costs	123	1,996
Income taxes receivable, payable and deferred	1,085	1,314
Other long-term liabilities	22	107
Pension and other postretirement plans	571	1,445
Customer financing, net	254	171
Other	28	82
Net cash provided by operating activities	3,341	1,092
Cash flows - investing activities:
Property, plant and equipment additions	(1,208)	(1,142)
Property, plant and equipment reductions	29	54
Acquisitions, net of cash acquired	(18)	(42)
Contributions to investments	(10,331)	(6,089)
Proceeds from investments	6,941	8,006
Receipt of economic development program funds		69
Purchase of distribution rights	(6)
Net cash (used)/provided by investing activities	(4,593)	856
Net Cash Provided by (Used in) Financing Activities [Abstract]
New borrowings	34	789
Debt repayments	(1,273)	(895)
Repayments of distribution rights financing	(72)	(436)
Stock options exercised, other	96	106
Excess tax benefit from share-based payment arrangments	43	35
Employee taxes on certain share-based payment arrangements	(72)	(21)
Dividends paid	(990)	(932)
Net cash used by financing activities	(2,234)	(1,354)
Effect of exchange rate changes on cash and cash equivalents	19	1
Net (decrease)/increase in cash and cash equivalents	(3,467)	595
Cash and cash equivalents at beginning of year	10,049	5,359
Cash and cash equivalents at end of period	$ 6,582	$ 5,954