Intangible Assets Acquired Through Business Combinations and Goodwill - Schedule of Goodwill (Details) $ in Millions	9 Months Ended
Oct. 31, 2025 USD ($)
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 51,283
Acquisition of Regrello	704
Other acquisitions and adjustments	470
Goodwill, ending balance	$ 52,457

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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+ Details