Intangible Assets Acquired Through Business Combinations and Goodwill - Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
Jan. 31, 2022	Jan. 31, 2021
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 26,318	$ 25,134
Goodwill acquired		86
Other acquisitions and adjustments	121
Goodwill, ending balance	47,937	26,318
Evergage
Goodwill [Roll Forward]
Goodwill acquired		74
Vlocity
Goodwill [Roll Forward]
Goodwill acquired		$ 1,024
Slack
Goodwill [Roll Forward]
Goodwill acquired	21,161
Acumen
Goodwill [Roll Forward]
Goodwill acquired	$ 337

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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Amount of increase (decrease) from foreign currency translation adjustments and purchase accounting adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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