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Income Taxes - Provision for Income Taxes (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 31, 2021 | Oct. 31, 2020 | Jul. 31, 2020 | Apr. 30, 2020 | Jan. 31, 2020 | Oct. 31, 2019 | Jul. 31, 2019 | Apr. 30, 2019 | Jan. 31, 2021 | Jan. 31, 2020 | Jan. 31, 2019
Federal: |  |  |  |  |  |  |  |  |  |  |
Current |  |  |  |  |  |  |  |  | $ 9.8 | $ (2.3) | $ (13.3)
Deferred |  |  |  |  |  |  |  |  | (741.0) | 7.6 | (6.7)
State: |  |  |  |  |  |  |  |  |  |  |
Current |  |  |  |  |  |  |  |  | 19.0 | (0.4) | (1.8)
Deferred |  |  |  |  |  |  |  |  | (57.5) | 2.1 | 0.1
Foreign: |  |  |  |  |  |  |  |  |  |  |
Current |  |  |  |  |  |  |  |  | 87.6 | 69.6 | 65.3
Deferred |  |  |  |  |  |  |  |  | 20.6 | 3.7 | (5.5)
Income tax provision (benefit) | $ (740.2) | $ 23.9 | $ 30.8 | $ 24.0 | $ (8.5) | $ 29.7 | $ 26.3 | $ 32.8 | $ (661.5) | $ 80.3 | $ 38.1

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