Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions		3 Months Ended
		Apr. 30, 2025	Apr. 30, 2024
Operating activities:
Net income		$ 1,541	$ 1,533
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	[1]	843	879
Amortization of costs capitalized to obtain revenue contracts, net		545	517
Stock-based compensation expense		814	750
Gains (losses) on strategic investments, net		63	(37)
Changes in assets and liabilities, net of business combinations:
Accounts receivable, net		7,591	7,162
Costs capitalized to obtain revenue contracts, net		(365)	(248)
Prepaid expenses and other current assets and other assets		(481)	(514)
Accounts payable and accrued expenses and other liabilities		(1,007)	(755)
Operating lease liabilities		(124)	(85)
Unearned revenue		(2,944)	(2,955)
Net cash provided by operating activities		6,476	6,247
Investing activities:
Business combinations, net of cash acquired		0	(338)
Purchases of strategic investments		(149)	(203)
Sales of strategic investments		6	53
Purchases of marketable securities		(2,086)	(3,252)
Sales of marketable securities		405	616
Maturities of marketable securities		436	636
Capital expenditures		(179)	(163)
Net cash used in investing activities		(1,567)	(2,651)
Financing activities:
Repurchases of common stock		(2,633)	(2,133)
Proceeds from employee stock plans		294	533
Principal payments on financing obligations		(179)	(120)
Payments of dividends and dividend equivalents		(402)	(388)
Net cash used in financing activities		(2,920)	(2,108)
Effect of exchange rate changes		91	(2)
Net increase in cash and cash equivalents		2,080	1,486
Cash and cash equivalents, beginning of period		8,848	8,472
Cash and cash equivalents, end of period		10,928	9,958
Cash paid during the period for:
Interest		28	28
Income taxes, net of tax refunds		$ 99	$ 94

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