Consolidated Statement of Cash Flows (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Cash Flows from Operating Activities
Net income including noncontrolling interest	$ 3,507	$ 3,383
Adjustments to reconcile net income including noncontrolling interest to net cash provided by operating activities
Depreciation and amortization	956	919
Company pension and postretirement contributions	(918)	(373)
Company pension and postretirement expense	490	400
Stock-based compensation expense	181	210
Deferred income taxes	89	(37)
Excess tax benefits from stock-based compensation	(53)	(52)
Changes in assets and liabilities
Accounts receivable	(493)	(557)
Inventories	(368)	(364)
Accounts payable	141	(30)
Accrued income taxes (current and long-term)	(48)	212
Product and other insurance receivables and claims	(11)	(45)
Other - net	89	(120)
Net cash provided by operating activities	3,562	3,546
Cash Flows from Investing Activities
Purchases of property, plant and equipment (PP&E)	(977)	(862)
Proceeds from sale of PP&E and other assets	15	12
Acquisitions, net of cash acquired	(248)	(531)
Purchases of marketable securities and investments	(4,313)	(2,592)
Proceeds from sale of marketable securities and investments	1,778	1,042
Proceeds from maturities of marketable securities	1,597	1,353
Other investing	14	(6)
Net cash used in investing activities	(2,134)	(1,584)
Cash Flows from Financing Activities
Change in short-term debt - net	(36)	(13)
Repayment of debt (maturities greater than 90 days)	(18)	(474)
Proceeds from debt (maturities greater than 90 days)	1,251	1,108
Purchases of treasury stock	(1,490)	(2,207)
Proceeds from issuance of treasury stock pursuant to stock option and benefit plans	772	865
Dividends paid to shareholders	(1,228)	(1,171)
Excess tax benefits from stock-based compensation	53	52
Other - net	(18)	(58)
Net cash used in financing activities	(714)	(1,898)
Effect of exchange rate changes on cash and cash equivalents	96	(65)
Net increase (decrease) in cash and cash equivalents	810	(1)
Cash and cash equivalents at beginning of year	2,219	3,377
Cash and cash equivalents at end of period	$ 3,029	$ 3,376