Revenue Recognition - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2026	Jan. 31, 2025
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Contract with customer, liability, revenue recognized	$ 3,780	$ 3,490
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-02-01 | Period One
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 8,300
Performance obligation, expected timing of satisfaction	3 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-02-01 | Period Two
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 5,480
Performance obligation, expected timing of satisfaction	12 months
Remaining performance obligation percentage	66.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-02-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 2,820
Performance obligation, expected timing of satisfaction
Remaining performance obligation percentage	34.00%