Consolidated Statement of Cash Flows (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Cash Flows from Operating Activities
Net income including noncontrolling interest	$ 1,225	$ 1,147
Adjustments to reconcile net income including noncontrolling interest to net cash provided by operating activities
Depreciation and amortization	350	336
Company pension and postretirement contributions	(42)	(68)
Company pension and postretirement expense	98	138
Stock-based compensation expense	122	103
Deferred income taxes	(83)	61
Excess tax benefits from stock-based compensation	(51)	(34)
Changes in assets and liabilities
Accounts receivable	(347)	(447)
Inventories	(131)	(28)
Accounts payable	84	97
Accrued income taxes (current and long-term)	135	99
Product and other insurance receivables and claims	(25)	(8)
Other - net	(243)	(402)
Net cash provided by operating activities	1,092	994
Cash Flows from Investing Activities
Purchases of property, plant and equipment (PP&E)	(293)	(324)
Proceeds from sale of PP&E and other assets	3	10
Purchases of marketable securities and investments	(601)	(1,767)
Proceeds from maturities and sale of marketable securities and investments	599	1,671
Other investing	5	5
Net cash used in investing activities	(287)	(405)
Cash Flows from Financing Activities
Change in short-term debt - net	466	(13)
Repayment of debt (maturities greater than 90 days)	(64)	(5)
Proceeds from debt (maturities greater than 90 days)	172	9
Purchases of treasury stock	(1,708)	(805)
Proceeds from issuance of treasury stock pursuant to stock option and benefit plans	267	738
Dividends paid to shareholders	(566)	(440)
Excess tax benefits from stock-based compensation	51	34
Other - net	(17)	(4)
Net cash used in financing activities	(1,399)	(486)
Effect of exchange rate changes on cash and cash equivalents	(33)	(58)
Net increase (decrease) in cash and cash equivalents	(627)	45
Cash and cash equivalents at beginning of year	2,581	2,883
Cash and cash equivalents at end of period	$ 1,954	$ 2,928