Condensed Consolidated Statement of Cash Flows (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Operating Activities:
Net income	$ 1,498	$ 1,306
Adjustments to reconcile income from continuing operations to net cash flows provided by operating activities of continuing operations:
Depreciation and amortization	479	467
Deferred income tax provision	145	44
Stock compensation cost	51	60
Change in:
Accounts receivable	450	66
Inventories and contracts in progress	453	712
Other current assets	0	5
Accounts payable and accrued liabilities	264	262
Global pension contributions	45	84
Other operating activities, net	179	(63)
Net cash flows provided by operating activities	1,310	1,335
Investing Activities:
Capital expenditures	348	333
Investments in businesses	230	17
Dispositions of businesses	158	123
(Increase) decrease in customer financing assets, net	14	(12)
Increase in collaboration intangible assets	132	142
Receipts (payments) from settlements of derivative contracts	(569)	113
Other investing activities, net	(170)	(28)
Net cash flows used in provided by (used in) investing activities	173	(442)
Financing Activities of Continuing Operations:
Issuance of long-term debt, net	10	6
Increase (decrease) in short-term borrowings, net	2,177	(200)
Proceeds from Common Stock issued under employee stock plans	24	86
Dividends paid on Common Stock	553	514
Repurchase of Common Stock	3,000	335
Other financing activities, net	(42)	(38)
Net cash flows used in financing activities	(1,384)	(995)
Effect of Exchange Rate on Cash and Cash Equivalents [Abstract]
Effect of foreign exchange rate changes on cash and cash equivalents	(53)	(40)
Net increase (decrease) in cash and cash equivalents	46	(142)
Cash and Cash Equivalents	5,235	4,619
Cash and Cash Equivalents	$ 5,281	$ 4,477