Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2021	Jan. 31, 2020	Jan. 31, 2019
Cash flows from operating activities:
Consolidated net income	$ 13,706	$ 15,201	$ 7,179
Adjustments to reconcile consolidated net income to net cash provided by operating activities:
Depreciation and amortization	11,152	10,987	10,678
Net unrealized and realized (gains) and losses	(8,589)	(1,886)	3,516
Losses on disposal of business operations	8,401	15	4,850
Asda pension contribution	0	(1,036)	0
Deferred income taxes	1,911	320	(499)
Other operating activities	1,521	1,981	1,734
Changes in certain assets and liabilities, net of effects of acquisitions and dispositions:
Receivables, net	(1,086)	154	(368)
Inventories	(2,395)	(300)	(1,311)
Accounts payable	6,966	(274)	1,831
Accrued liabilities	4,623	186	183
Accrued income taxes	(136)	(93)	(40)
Net cash provided by operating activities	36,074	25,255	27,753
Cash flows from investing activities:
Payments for property and equipment	(10,264)	(10,705)	(10,344)
Proceeds from the disposal of property and equipment	215	321	519
Proceeds from the disposal of certain operations	56	833	876
Payments for business acquisitions, net of cash acquired	(180)	(56)	(14,656)
Other investing activities	102	479	(431)
Net cash used in investing activities	(10,071)	(9,128)	(24,036)
Cash flows from financing activities:
Net change in short-term borrowings	(324)	(4,656)	(53)
Proceeds from issuance of long-term debt	0	5,492	15,872
Repayments of long-term debt	(5,382)	(1,907)	(3,784)
Dividends paid	(6,116)	(6,048)	(6,102)
Purchase of Company stock	(2,625)	(5,717)	(7,410)
Dividends paid to noncontrolling interest	(434)	(555)	(431)
Other financing activities	(1,236)	(908)	(629)
Net cash used in financing activities	(16,117)	(14,299)	(2,537)
Effect of exchange rates on cash, cash equivalents and restricted cash	235	(69)	(438)
Net increase in cash, cash equivalents and restricted cash	10,121	1,759	742
Cash and cash equivalents reclassified as assets held for sale	(1,848)	0	0
Cash, cash equivalents and restricted cash at beginning of year	9,515	7,756	7,014
Cash, cash equivalents and restricted cash at end of year	17,788	9,515	7,756
Supplemental disclosure of cash flow information:
Income taxes paid	5,271	3,616	3,982
Interest paid	$ 2,216	$ 2,464	$ 2,348