Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jul. 31, 2015	Jul. 31, 2014
Cash flows from operating activities:
Consolidated net income	$ 6,918	$ 8,085
Income from discontinued operations, net of income taxes	0	(285)
Income from continuing operations	6,918	7,800
Adjustments to reconcile income from continuing operations to net cash provided by operating activities:
Depreciation and amortization	4,658	4,527
Deferred income taxes	(396)	79
Other operating activities	532	667
Changes in certain assets and liabilities, net of effects of acquisitions:
Receivables, net	683	704
Inventories	(227)	(403)
Accounts payable	(562)	(420)
Accrued liabilities	(860)	(596)
Accrued income taxes	(644)	(458)
Net cash provided by operating activities	10,102	11,900
Cash flows from investing activities:
Payments for property and equipment	(5,044)	(5,113)
Proceeds from the disposal of property and equipment	287	90
Proceeds from the disposal of certain operations	246	671
Other investing activities	(91)	12
Net cash used in investing activities	(4,602)	(4,340)
Cash flows from financing activities:
Net change in short-term borrowings	274	(4,130)
Proceeds from issuance of long-term debt	42	4,565
Payments of long-term debt	(3,159)	(2,868)
Dividends paid	(3,157)	(3,094)
Purchase of Company stock	(1,283)	(933)
Dividends paid to noncontrolling interest	(434)	(339)
Purchase of noncontrolling interest	(847)	(1,720)
Other financing activities	(210)	(236)
Net cash used in financing activities	(8,774)	(8,755)
Effect of exchange rates on cash and cash equivalents	(110)	98
Net increase (decrease) in cash and cash equivalents	(3,384)	(1,097)
Cash and cash equivalents at beginning of year	9,135	7,281
Cash and cash equivalents at end of period	$ 5,751	$ 6,184