Consolidated statements 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	$ 1,495	$ 1,938
Adjustments to net income:
Depreciation	725	657
Stock-based compensation	199	203
Amortization of acquisition-related intangibles	257	26
Gains on sales of assets	0	(5)
Deferred income taxes	136	(9)
Gain on transfer of Japan substitutional pension	(144)	0
Increase (decrease) from changes in:
Accounts receivable	(70)	(124)
Inventories	(86)	(220)
Prepaid expenses and other current assets	80	(11)
Accounts payable and accrued expenses	(123)	70
Accrued compensation	(41)	(142)
Income taxes payable	(177)	(89)
Other	75	(9)
Cash flows from operating activities	2,326	2,285
Cash flows from investing activities:
Additions to property, plant and equipment	(399)	(663)
Proceeds from asset sales and insurance recovery	0	16
Purchases of short-term investments	(2,141)	(2,463)
Proceeds from short-term investments	1,639	3,254
Purchases of long-term investments	(1)	(4)
Proceeds from long-term investments	52	75
Business acquisitions, net of cash acquired	0	(5,390)
Cash flows from investing activities	(850)	(5,175)
Cash flows from financing activities:
Proceeds from issuance of long-term debt	1,492	4,697
Issuance costs for long-term debt	(7)	(12)
Repayment of debt and commercial paper borrowings	(1,375)	0
Dividends paid	(584)	(451)
Proceeds from common stock transactions	390	563
Excess tax benefit from share-based payments	26	28
Stock repurchases	(1,200)	(1,673)
Cash flows from financing activities	(1,258)	3,152
Net change in cash and cash equivalents	218	262
Cash and cash equivalents, beginning of period	992	1,319
Cash and cash equivalents, end of period	$ 1,210	$ 1,581