Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jul. 31, 2019	Jul. 31, 2018
Cash flows from operating activities:
Consolidated net income (loss)	$ 7,586	$ 1,549
Adjustments to reconcile consolidated net income to net cash provided by operating activities:
Depreciation and amortization	5,436	5,332
Unrealized (gains) and losses	(731)	1,939
(Gains) and losses for disposal of business operations	0	4,755
Deferred income taxes	241	(117)
Other operating activities	348	469
Changes in certain assets and liabilities, net of effects of acquisitions and dispositions:
Receivables, net	978	257
Inventories	220	441
Accounts payable	(1,242)	(1,588)
Accrued liabilities	(1,657)	(1,702)
Accrued income taxes	6	(240)
Net cash provided by operating activities	11,185	11,095
Cash flows from investing activities:
Payments for property and equipment	(4,871)	(4,282)
Proceeds from the disposal of property and equipment	128	205
Proceeds from the disposal of certain operations	833	0
Payments for business acquisitions, net of cash acquired	(56)	0
Other investing activities	142	(351)
Net cash used in investing activities	(3,824)	(4,428)
Cash flows from financing activities:
Net change in short-term borrowings	(1,564)	(4,761)
Proceeds from issuance of long-term debt	4,020	15,851
Repayments of long-term debt	(407)	(3,050)
Dividends paid	(3,036)	(3,067)
Purchase of Company stock	(3,707)	(1,844)
Dividends paid to noncontrolling interest	(259)	(171)
Other financing activities	(578)	(478)
Net cash (used in) provided by financing activities	(5,531)	2,480
Effect of exchange rates on cash, cash equivalents and restricted cash	(266)	(299)
Net increase (decrease) in cash, cash equivalents and restricted cash	1,564	8,848
Cash, cash equivalents and restricted cash at beginning of year	7,756	7,014
Cash, cash equivalents and restricted cash at end of period	$ 9,320	$ 15,862