Revenue Recognition - Narrative (Details) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 31, 2024 USD ($)	Oct. 31, 2023 USD ($)	Oct. 31, 2024 USD ($) category	Oct. 31, 2023 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Number of revenue categories | category			3
Contract with customer, liability, revenue recognized	$ 790	$ 730	$ 3,000	$ 2,710
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-11-01 | Period One
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 6,110		$ 6,110
Performance obligation, expected timing of satisfaction	3 years		3 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-11-01 | Period Two
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 4,010		$ 4,010
Performance obligation, expected timing of satisfaction	12 months		12 months
Remaining performance obligation percentage	66.00%		66.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-11-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 2,100		$ 2,100
Performance obligation, expected timing of satisfaction
Remaining performance obligation percentage	34.00%		34.00%
Minimum
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Subscription payment terms			30 days
EBA payment terms			30 days
Maximum
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Subscription payment terms			45 days
EBA payment terms			60 days