Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Millions	3 Months Ended
	Apr. 30, 2011		Apr. 30, 2010
Cash flows from operating activities:
Consolidated net income	$ 3,550	[1]	$ 3,444	[1]
Loss from discontinued operations, net of tax	28
Income from continuing operations	3,578		3,444
Adjustments to reconcile income from continuing operations to net cash provided by operating activities:
Depreciation and amortization	1,985		1,864
Other operating activities	(209)		(696)
Changes in certain assets and liabilities, net of effects of acquisitions:
Accounts receivable	341		(97)
Inventories	(1,713)		(2,195)
Accounts payable	205		392
Accrued liabilities	(2,213)		(1,739)
Net cash provided by operating activities	1,974		973
Cash flows from investing activities:
Payments for property and equipment	(2,389)		(2,563)
Proceeds from disposal of property and equipment	94		123
Other investing activities	426		204
Net cash used in investing activities	(1,869)		(2,236)
Cash flows from financing activities:
Net change in short-term borrowings	2,428		4,299
Proceeds from issuance of long-term debt	4,921		1,971
Payments of long-term debt	(2,057)		(37)
Dividends paid	(1,274)		(1,136)
Purchase of Company stock	(2,129)		(2,967)
Other financing activities	(223)		(294)
Net cash used in financing activities	1,666		1,836
Effect of exchange rates on cash and cash equivalents	234		36
Net increase in cash and cash equivalents	2,005		609
Cash and cash equivalents at beginning of year	7,395		7,907
Cash and cash equivalents at end of period	$ 9,400		$ 8,516

[1] Includes $17 million and $3 million for the three months ended April 30, 2011 and 2010, respectively, related to the redeemable noncontrolling interest.