Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jul. 31, 2025	Jul. 31, 2024	Jul. 31, 2025	Jul. 31, 2024
Operating activities:
Net income		$ 1,887	$ 1,429	$ 3,428	$ 2,962
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	[1]	817	907	1,660	1,786
Amortization of costs capitalized to obtain revenue contracts, net		544	526	1,089	1,043
Stock-based compensation expense		793	810	1,607	1,560
Gains (losses) on strategic investments, net		(6)	37	57	0
Changes in assets and liabilities, net of business combinations:
Accounts receivable, net		(1,242)	(1,136)	6,349	6,026
Costs capitalized to obtain revenue contracts, net		(406)	(427)	(771)	(675)
Prepaid expenses and other current assets and other assets		(32)	(477)	(513)	(991)
Accounts payable and accrued expenses and other liabilities		(217)	220	(1,224)	(535)
Operating lease liabilities		(154)	(158)	(278)	(243)
Unearned revenue		(1,244)	(839)	(4,188)	(3,794)
Net cash provided by operating activities		740	892	7,216	7,139
Investing activities:
Business combinations, net of cash acquired		(54)	0	(54)	(338)
Purchases of strategic investments		(174)	(104)	(323)	(307)
Sales of strategic investments		38	52	44	105
Purchases of marketable securities		(1,118)	(550)	(3,204)	(3,802)
Sales of marketable securities		1,179	2,482	1,584	3,098
Maturities of marketable securities		1,429	898	1,865	1,534
Capital expenditures		(135)	(137)	(314)	(300)
Net cash provided by (used in) investing activities		1,165	2,641	(402)	(10)
Financing activities:
Repurchases of common stock		(2,225)	(4,335)	(4,858)	(6,468)
Payments for taxes related to net share settlement of equity awards		(12)	0	(12)	0
Proceeds from employee stock plans		232	202	526	735
Principal payments on financing obligations		(99)	(285)	(278)	(405)
Repayments of debt		0	(1,000)	0	(1,000)
Payments of dividends and dividend equivalents		(399)	(384)	(801)	(772)
Net cash used in financing activities		(2,503)	(5,802)	(5,423)	(7,910)
Effect of exchange rate changes		35	(7)	126	(9)
Net increase (decrease) in cash and cash equivalents		(563)	(2,276)	1,517	(790)
Cash and cash equivalents, beginning of period		10,928	9,958	8,848	8,472
Cash and cash equivalents, end of period		10,365	7,682	10,365	7,682
Cash paid during the period for:
Interest		87	90	115	118
Income taxes, net of tax refunds		$ 891	$ 823	$ 990	$ 917

[1] Includes amortization of intangible assets acquired through business combinations, depreciation of fixed assets and amortization and impairment of right-of-use assets.