Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jul. 31, 2018	Jul. 31, 2017
Cash flows from operating activities:
Consolidated net income	$ 1,549	$ 6,256
Adjustments to reconcile consolidated net income to net cash provided by operating activities:
Depreciation and amortization	5,332	5,169
Unrealized (Gain) Loss on Investments	1,939	0
(Gain) Loss on Disposition of Business	4,755	0
Deferred income taxes	117	(94)
Gain (Loss) on Extinguishment of Debt	0	(788)
Other operating activities	(469)	16
Changes in certain assets and liabilities, net of effects of acquisitions:
Receivables, net	(257)	(585)
Inventories	(441)	(233)
Accounts payable	(1,588)	535
Accrued liabilities	(1,702)	(1,720)
Accrued income taxes	(240)	(564)
Net cash provided by operating activities	11,095	11,360
Cash flows from investing activities:
Payments for property and equipment	4,282	4,423
Proceeds from the disposal of property and equipment	205	212
Proceeds from divestiture of businesses	0	1,012
Payments to Acquire Businesses, Net of Cash Acquired	0	363
Payments for (Proceeds from) Other Investing Activities	351	(20)
Net cash used in investing activities	(4,428)	(3,542)
Cash flows from financing activities:
Net change in short-term borrowings	(4,761)	2,144
Repayments of long-term debt	(3,050)	(3,400)
Payment for Debt Extinguishment or Debt Prepayment Cost	0	777
Dividends paid	(3,067)	(3,088)
Purchase of Company stock	(1,844)	(4,447)
Dividends paid to noncontrolling interest	(171)	(473)
Purchase of noncontrolling interest	0	(8)
Other financing activities	(478)	(85)
Net cash provided by (used in) financing activities	2,480	(8,631)
Effect of exchange rates on cash and cash equivalents	(299)	432
Net increase (decrease) in cash, cash equivalents and restricted cash	8,848	(381)
Cash, cash equivalents and restricted cash, beginning of year	7,014	7,144
Cash, cash equivalents and restricted cash, end of period	$ 15,862	$ 6,763