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Net Income Per Share (Tables)
 6 Months Ended
Jul. 31, 2024
Earnings Per Share [Abstract]  
Schedule of Calculation of Numerator and Denominator in Net Loss Per Share The following table sets forth the computation of the numerators and denominators used in the basic and diluted net income per share amounts:
 Three Months Ended July 31,Six Months Ended July 31,
2024202320242023
Numerator:
Net income $282 $222 $534 $383 
Denominator:
Denominator for basic net income per share—weighted average shares216 214 215 214 
Effect of dilutive securities1 1 2 2 
Denominator for dilutive net income per share217 215 217 216 
Basic net income per share$1.31 $1.04 $2.48 $1.79 
Diluted net income per share$1.30 $1.03 $2.46 $1.77