Income Taxes - Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Jan. 31, 2026	Jan. 31, 2025
Deferred tax assets:
Losses and deductions carryforward	$ 200	$ 209
Deferred stock-based compensation expense	260	237
Tax credits	906	769
Accrued liabilities	494	482
Intangible assets	1,541	1,694
Lease liabilities	685	740
Unearned revenue	124
Unearned revenue		(28)
Capitalized research & development	1,944	2,431
Other	17	65
Total deferred tax assets	6,171	6,599
Less valuation allowance	(967)	(786)
Deferred tax assets, net of valuation allowance	5,204	5,813
Deferred tax liabilities:
Capitalized costs to obtain revenue contracts	(912)	(850)
Purchased intangible assets	(1,173)	(650)
Depreciation and amortization	(193)	(164)
Basis difference on strategic and other investments	(347)	(106)
Lease right-of-use assets	(519)	(554)
Total deferred tax liabilities	(3,144)	(2,324)
Net deferred tax assets (liabilities)	$ 2,060	$ 3,489

Deferred Tax Assets, Capitalized Research And Development

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Deferred Tax Assets, Lease Liabilities

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Deferred Tax Liabilities, Capitalized Costs To Obtain Revenue Contracts

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Deferred Tax Liabilities, Depreciation and Amortization

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Amount of deferred tax liability attributable to taxable temporary differences.

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Amount, before allocation of a valuation allowances, of deferred tax assets attributable to deductible tax credit carryforwards including, but not limited to, research, foreign, general business, alternative minimum tax, and other deductible tax credit carryforwards.

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Amount of deferred tax liability attributable to taxable temporary differences from intangible assets other than goodwill.

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Amount of deferred tax liability attributable to taxable temporary differences from investments (excludes investments in subsidiaries and equity method investments).

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