Segments - Schedule of Other Segments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 31, 2025	Oct. 31, 2024	Oct. 31, 2025	Oct. 31, 2024
Segment Reporting [Abstract]
Interest income	$ 22	$ 21	$ 62	$ 67
Interest expense	22	18	59	54
Depreciation, amortization, and accretion expense	50	48	145	134
Amortization of costs to obtain a contract with a customer	$ 145	$ 51	$ 364	$ 136