Consolidated Statement of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash Flows from Operating Activities
Net income including noncontrolling interest	$ 1,278	$ 1,201
Adjustments to reconcile net income including noncontrolling interest to net cash provided by operating activities
Depreciation and amortization	356	339
Company pension and postretirement contributions	(56)	(91)
Company pension and postretirement expense	59	134
Stock-based compensation expense	144	138
Deferred income taxes	(38)	44
Excess tax benefits from stock-based compensation		(101)
Changes in assets and liabilities
Accounts receivable	(245)	(296)
Inventories	(37)	(131)
Accounts payable	(116)	56
Accrued income taxes (current and long-term)	334	100
Other - net	(419)	(313)
Net cash provided by operating activities	1,260	1,080
Cash Flows from Investing Activities
Purchases of property, plant and equipment (PP&E)	(314)	(291)
Proceeds from sale of PP&E and other assets	18	4
Acquisitions, net of cash acquired	(4)	(150)
Purchases of marketable securities and investments	(225)	(191)
Proceeds from maturities and sale of marketable securities and investments	164	605
Proceeds from sale of businesses	56	19
Other investing	25	4
Net cash used in investing activities	(280)
Cash Flows from Financing Activities
Change in short-term debt - net	138	(4)
Purchases of treasury stock	(1,227)	(886)
Proceeds from issuance of treasury stock pursuant to stock option and benefit plans	357	309
Dividends paid to shareholders	(672)	(652)
Excess tax benefits from stock-based compensation		101
Other - net	(22)	(22)
Net cash used in financing activities	(1,426)	(1,154)
Effect of exchange rate changes on cash and cash equivalents	(15)	(32)
Net increase (decrease) in cash and cash equivalents	(461)	(106)
Cash and cash equivalents at beginning of year	1,798	1,897
Cash and cash equivalents at end of period	$ 1,337	$ 1,791