Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Oct. 31, 2025	Oct. 31, 2024	Oct. 31, 2025	Oct. 31, 2024
Operating activities:
Net income		$ 2,086	$ 1,527	$ 5,514	$ 4,489
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	[1]	851	814	2,511	2,600
Amortization of costs capitalized to obtain revenue contracts, net		548	525	1,637	1,568
Stock-based compensation expense		819	820	2,426	2,380
Gains (losses) on strategic investments, net		(263)	217	(206)	217
Changes in assets and liabilities, net of business combinations:
Accounts receivable, net		123	655	6,472	6,681
Costs capitalized to obtain revenue contracts, net		(548)	(430)	(1,319)	(1,105)
Prepaid expenses and other current assets and other assets		396	(272)	(117)	(1,263)
Accounts payable and accrued expenses and other liabilities		0	32	(1,224)	(503)
Operating lease liabilities		(137)	(144)	(415)	(387)
Unearned revenue		(1,559)	(1,761)	(5,747)	(5,555)
Net cash provided by operating activities		2,316	1,983	9,532	9,122
Investing activities:
Business combinations, net of cash acquired		(978)	(179)	(1,032)	(517)
Purchases of strategic investments		(1,123)	(67)	(1,446)	(374)
Sales of strategic investments		68	13	112	118
Purchases of marketable securities		(366)	(1,239)	(3,570)	(5,041)
Sales of marketable securities		2,605	554	4,189	3,652
Maturities of marketable securities		452	905	2,317	2,439
Capital expenditures		(139)	(204)	(453)	(504)
Net cash provided by (used in) investing activities		519	(217)	117	(227)
Financing activities:
Repurchases of common stock		(3,801)	(1,285)	(8,659)	(7,753)
Payments for taxes related to net share settlement of equity awards		(127)	0	(139)	0
Proceeds from employee stock plans		239	321	765	1,056
Principal payments on financing obligations		(160)	(100)	(438)	(505)
Repayments of debt		0	0	0	(1,000)
Payments of dividends and dividend equivalents		(395)	(382)	(1,196)	(1,154)
Net cash used in financing activities		(4,244)	(1,446)	(9,667)	(9,356)
Effect of exchange rate changes		22	(5)	148	(14)
Net increase (decrease) in cash and cash equivalents		(1,387)	315	130	(475)
Cash and cash equivalents, beginning of period		10,365	7,682	8,848	8,472
Cash and cash equivalents, end of period		8,978	7,997	8,978	7,997
Cash paid during the period for:
Interest		28	28	143	146
Income taxes, net of tax refunds		$ 133	$ 471	$ 1,123	$ 1,388

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