Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Oct. 31, 2024	Oct. 31, 2023	Oct. 31, 2024	Oct. 31, 2023
Income Tax Disclosure [Abstract]
Provision for income taxes	$ 219	$ 263	$ 961	$ 615
Income before provision for income taxes	$ 1,746	$ 1,487	$ 5,450	$ 3,305
Effective tax rate			18.00%	19.00%

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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+ Details

- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

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+ Details