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Stockholders' Equity - Schedule of Changes in Stockholders' Deficit by Component, Net of Tax (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions | 3 Months Ended
--- | ---
Apr. 30, 2024 | Apr. 30, 2023
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Beginning balance | $ 1,855 | $ 1,145
Common shares issued under stock plans | (62) | (21)
Stock-based compensation expense | 151 | 160
Settlement of liability-classified restricted common shares | 3 | 1
Net income | 252 | 161
Other comprehensive loss | (29) | (15)
Repurchase and retirement of common shares | (9) | (534)
Ending balance | $ 2,161 | $ 897
Common Stock Repurchase Program |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Common stock repurchased and retired (in shares) | 33 | 2,666
Repurchased shares of its common stock on the open market, average repurchase price per share (in usd per share) | $ 254.81 | $ 199.36
September 2016 Common Stock Repurchase Program |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Shares remained available for repurchase under repurchase plans (in shares) |  | 2
November 2022 Common Stock Repurchase Program |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Amount remained available for repurchase under repurchase plans | $ 4,730 | $ 5,000
Common stock and additional paid-in capital |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Beginning balance (in shares) | 214,000 | 215,000
Beginning balance | $ 3,802 | $ 3,325
Common shares issued under stock plans (in shares) | 1,000 | 2,000
Common shares issued under stock plans | $ (62) | $ (21)
Stock-based compensation expense | 151 | 160
Settlement of liability-classified restricted common shares | $ 3 | $ 1
Repurchase and retirement of common shares (in shares) | 0 | (3,000)
Repurchase and retirement of common shares | $ 0 | $ (97)
Ending balance (in shares) | 215,000 | 214,000
Ending balance | $ 3,894 | $ 3,368
Accumulated other comprehensive loss |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Beginning balance | (234) | (185)
Other comprehensive loss | (29) | (15)
Ending balance | (263) | (200)
Accumulated deficit |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Beginning balance | (1,713) | (1,995)
Net income | 252 | 161
Repurchase and retirement of common shares | (9) | (437)
Ending balance | $ (1,470) | $ (2,271)

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