Consolidated Statement of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Cash Flows from Operating Activities
Net income including noncontrolling interest	$ 4,357	$ 4,163	$ 3,244
Adjustments to reconcile net income including noncontrolling interest to net cash provided by operating activities
Depreciation and amortization	1,236	1,120	1,157
Company pension and postretirement contributions	(582)	(618)	(792)
Company pension and postretirement expense	555	322	223
Stock-based compensation expense	253	274	217
Deferred income taxes	177	(170)	701
Excess tax benefits from stock-based compensation	(53)	(53)	(14)
Changes in assets and liabilities
Accounts receivable	(205)	(189)	55
Inventories	(196)	(404)	453
Accounts payable	(83)	146	109
Accrued income taxes (current and long-term)	(45)	255	(147)
Product and other insurance receivables and claims	9	49	64
Other - net	(139)	279	(329)
Net cash provided by operating activities	5,284	5,174	4,941
Cash Flows from Investing Activities
Purchases of property, plant and equipment (PP&E)	(1,379)	(1,091)	(903)
Proceeds from sale of PP&E and other assets	55	25	74
Acquisitions, net of cash acquired	(649)	(1,830)	(69)
Purchases of marketable securities and investments	(4,162)	(3,287)	(2,240)
Proceeds from sale of marketable securities and investments	1,679	1,995	718
Proceeds from maturities of marketable securities	1,738	1,565	683
Other investing		(3)	5
Net cash used in investing activities	(2,718)	(2,626)	(1,732)
Cash Flows from Financing Activities
Change in short-term debt - net	11	(24)	(536)
Repayment of debt (maturities greater than 90 days)	(1,429)	(556)	(519)
Proceeds from debt (maturities greater than 90 days)	1,111	108	41
Purchases of treasury stock	(2,701)	(854)	(17)
Proceeds from issuances of treasury stock pursuant to stock option and benefit plans	902	666	431
Dividends paid to shareholders	(1,555)	(1,500)	(1,431)
Excess tax benefits from stock-based compensation	53	53	14
Other - net	(67)	(77)	3
Net cash used in financing activities	(3,675)	(2,184)	(2,014)
Effect of exchange rate changes on cash and cash equivalents	(49)	(27)	(4)
Net increase/(decrease) in cash and cash equivalents	(1,158)	337	1,191
Cash and cash equivalents at beginning of year	3,377	3,040	1,849
Cash and cash equivalents at end of year	$ 2,219	$ 3,377	$ 3,040