Consolidated Statement of Cash Flows (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Cash Flows from Operating Activities
Net income including noncontrolling interest	$ 1,141	$ 1,103
Adjustments to reconcile net income including noncontrolling interest to net cash provided by operating activities
Depreciation and amortization	313	289
Company pension and postretirement contributions	(337)	(61)
Company pension and postretirement expense	180	135
Stock-based compensation expense	103	116
Deferred income taxes	44	3
Excess tax benefits from stock-based compensation	(28)	(15)
Changes in assets and liabilities
Accounts receivable	(431)	(469)
Inventories	(96)	(180)
Accounts payable	118	80
Accrued income taxes (current and long-term)	221	137
Product and other insurance receivables and claims	(74)	(39)
Other - net	(326)	(366)
Net cash provided by operating activities	828	733
Cash Flows from Investing Activities
Purchases of property, plant and equipment (PP&E)	(261)	(231)
Proceeds from sale of PP&E and other assets	4	2
Acquisitions, net of cash acquired		(471)
Purchases of marketable securities and investments	(900)	(757)
Proceeds from sale of marketable securities and investments	539	363
Proceeds from maturities of marketable securities	574	376
Other investing	1	(6)
Net cash used in investing activities	(43)	(724)
Cash Flows from Financing Activities
Change in short-term debt - net	(18)	12
Repayment of debt (maturities greater than 90 days)	(15)	(104)
Proceeds from debt (maturities greater than 90 days)	6	107
Purchases of treasury stock	(524)	(680)
Proceeds from issuance of treasury stock pursuant to stock option and benefit plans	213	378
Dividends paid to shareholders	(410)	(392)
Excess tax benefits from stock-based compensation	28	15
Other - net	(2)	(33)
Net cash used in financing activities	(722)	(697)
Effect of exchange rate changes on cash and cash equivalents	50	58
Net increase (decrease) in cash and cash equivalents	113	(630)
Cash and cash equivalents at beginning of year	2,219	3,377
Cash and cash equivalents at end of period	$ 2,332	$ 2,747