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Revenues - Narrative (Details)
$ in Millions
12 Months Ended
Jan. 31, 2025
USD ($)
Jan. 31, 2024
USD ($)
Jan. 31, 2023
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]      
Acquired customer contract asset $ 724 $ 758  
Percent of revenue recognized 0.50    
Minimum | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-02-01      
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]      
Noncurrent remaining performance obligation, recognition period 13 months    
Maximum | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-02-01      
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]      
Noncurrent remaining performance obligation, recognition period 36 months    
United States | Revenue | Geographic concentration risk      
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]      
Concentration risk percentage 93.00% 93.00% 93.00%