v3.25.4
Debt - Narrative (Details) - USD ($)
12 Months Ended
Jan. 31, 2026
Jan. 31, 2025
Jan. 31, 2023
Debt Instrument [Line Items]      
Debt discount and issuance costs $ 13,000,000 $ 16,000,000  
Senior Notes      
Debt Instrument [Line Items]      
Debt instrument, face amount     $ 3,000,000,000.0
Debt discount and issuance costs     27,000,000
Estimated fair value $ 2,900,000,000 2,800,000,000  
2027 Notes | Senior Notes      
Debt Instrument [Line Items]      
Debt instrument, face amount     $ 1,000,000,000.0
Contractual interest rate (percent)     3.50%
Effective interest rate (percent) 3.67%    
2029 Notes | Senior Notes      
Debt Instrument [Line Items]      
Debt instrument, face amount     $ 750,000,000
Contractual interest rate (percent)     3.70%
Effective interest rate (percent) 3.82%    
2032 Notes | Senior Notes      
Debt Instrument [Line Items]      
Debt instrument, face amount     $ 1,250,000,000
Contractual interest rate (percent)     3.80%
Effective interest rate (percent) 3.90%    
2022 Credit Agreement | Revolving Credit Facility      
Debt Instrument [Line Items]      
Maximum borrowing capacity     $ 1,000,000,000.0
Long-term line of credit $ 0 $ 0  
Debt instrument, maximum leverage ratio 3.50    
Debt instrument, maximum leverage ratio step up 4.50    
2022 Credit Agreement | Revolving Credit Facility | Base Rate | Minimum      
Debt Instrument [Line Items]      
Basis spread on variable rate (percent) 0.00%    
2022 Credit Agreement | Revolving Credit Facility | Base Rate | Maximum      
Debt Instrument [Line Items]      
Basis spread on variable rate (percent) 0.50%    
2022 Credit Agreement | Revolving Credit Facility | Secured Overnight Financing Rate (SOFR)      
Debt Instrument [Line Items]      
Basis spread on variable rate (percent) 0.10%    
2022 Credit Agreement | Revolving Credit Facility | Secured Overnight Financing Rate (SOFR) | Minimum      
Debt Instrument [Line Items]      
Basis spread on variable rate (percent) 0.75%    
2022 Credit Agreement | Revolving Credit Facility | Secured Overnight Financing Rate (SOFR) | Maximum      
Debt Instrument [Line Items]      
Basis spread on variable rate (percent) 1.50%