Taxes - Schedule of Income Tax Provision (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2025	Jan. 31, 2024	Jan. 31, 2023
Current:
U.S. federal	$ 3,478	$ 3,215	$ 2,030
U.S. state and local	886	762	610
International	2,451	1,772	2,654
Total current tax provision	6,815	5,749	5,294
Deferred:
U.S. federal	(214)	(438)	608
U.S. state and local	30	141	119
International	(479)	126	(297)
Total deferred tax expense (benefit)	(663)	(171)	430
Total provision for income taxes	$ 6,152	$ 5,578	$ 5,724