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The net realized gain (loss) on investments sold during the period, not including gains (losses) on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, which, for cash flow reporting, is a component of proceeds from investing activities.

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Fair Value Measurements - Narrative (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Aug. 31, 2024	Jan. 31, 2025	Jan. 31, 2024	Jan. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity and other securities, changes in fair value, gain (loss)		$ (4,200)	$ (3,400)
Proceeds from disposal of certain strategic investments		$ 4,080	$ 0	$ 0
JD.com
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Proceeds from disposal of certain strategic investments	$ 3,600
Loss on sale of investments	$ 300