Condensed Consolidated Statement of Cash Flows (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Operating Activities of Continuing Operations:
Income from continuing operations	$ 4,523	$ 4,163
Adjustments to reconcile income from continuing operations to net cash flows provided by operating activities of continuing operations:
Depreciation and amortization	1,335	1,047
Deferred income tax provision	13	29
Stock compensation cost	216	150
Change in:
Accounts receivable	(198)	406
Inventories and contracts in progress	(1,461)	(1,162)
Other current assets	118	(101)
Accounts payable and accrued liabilities	1,077	708
Global pension contributions	(72)	(233)
Other operating activities, net	(660)	(356)
Net cash flows provided by operating activities of continuing operations	4,891	4,651
Investing Activities of Continuing Operations:
Capital expenditures	(1,047)	(748)
Investments in businesses	(120)	(16,008)
Dispositions of businesses	1,465	362
(Increase) decrease in customer financing assets, net	(121)	1
Decrease (increase) in restricted cash, net	3	(191)
Increase in collaboration intangible assets	(547)	(1,394)
Other investing activities, net	(232)	(17)
Net cash flows used in investing activities of continuing operations	(599)	(17,995)
Financing Activities of Continuing Operations:
(Repayment) issuance of long-term debt, net	(1,795)	10,798
(Decrease) increase in short-term borrowings, net	(204)	4,509
Proceeds from Common Stock issued under employee stock plans	336	460
Dividends paid on Common Stock	(1,395)	(1,288)
Repurchase of Common Stock	(1,000)	0
Other financing activities, net	(168)	(493)
Net cash flows (used in) provided by financing activities of continuing operations	(4,226)	13,986
Discontinued Operations:
Net cash (used in) provided by operating activities	(603)	22
Net cash provided by (used in) investing activities	351	(352)
Net Cash used in discontinued operations	(252)	(330)
Effect of foreign exchange rate changes on cash and cash equivalents	(29)	25
Net (decrease) increase in cash and cash equivalents	(215)	337
Cash and cash equivalents, beginning of year	4,836	5,960
Cash and cash equivalents, end of period	4,621	6,297
Less: Cash and cash equivalents of businesses held for sale	0	55
Cash and cash equivalents of continuing operations, end of period	$ 4,621	$ 6,242