Condensed Consolidated Statements Of Cash Flows (Unaudited) (USD $) In Millions	6 Months Ended
	Jul. 31, 2011		Jul. 31, 2010
Cash flows from operating activities:
Consolidated net income	$ 7,487	[1]	$ 7,191	[1]
Loss from discontinued operations, net of tax	28
Income from continuing operations	7,515		7,191
Adjustments to reconcile income from continuing operations to net cash provided by operating activities:
Depreciation and amortization	4,027		3,748
Other operating activities	276		(162)
Changes in certain assets and liabilities, net of effects of acquisitions:
Accounts receivable	319		(424)
Inventories	(909)		(2,086)
Accounts payable	(550)		3,090
Accrued liabilities	(970)		(1,338)
Net cash provided by operating activities	9,708		10,019
Cash flows from investing activities:
Payments for property and equipment	(5,671)		(5,554)
Proceeds from the disposal of property and equipment	112		126
Investments and business acquisitions, net of cash acquired	(3,501)		(108)
Other investing activities	168		(45)
Net cash used in investing activities	(8,892)		(5,581)
Cash flows from financing activities:
Net change in short-term borrowings	5,336		4,120
Proceeds from issuance of long-term debt	4,949		6,433
Payments of long-term debt	(3,895)		(2,639)
Dividends paid	(2,541)		(2,260)
Purchase of Company stock	(3,540)		(7,112)
Other financing activities	(515)		(587)
Net cash used in financing activities	(206)		(2,045)
Effect of exchange rates on cash and cash equivalents	97		(105)
Net increase in cash and cash equivalents	707		2,288
Cash and cash equivalents at beginning of year	7,395		7,907
Cash and cash equivalents at end of period	$ 8,102		$ 10,195

[1] Includes $29 million and $2 million for the six months ended July 31, 2011 and 2010, respectively, related to the redeemable noncontrolling interest.