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CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Millions | 12 Months Ended
--- | ---
Jan. 31, 2018 | Jan. 31, 2017 | Jan. 31, 2016
Statement of Comprehensive Income [Abstract] |  |  |
Net loss | $ (566.9) | $ (582.1) | $ (330.5)
Other comprehensive loss, net of reclassifications: |  |  |
Net loss on derivative instruments (net of tax effect of $3.2, ($1.1), and $0.6) | (31.2) | (1.1) | (27.1)
Change in net unrealized (loss) gain on available-for-sale securities (net of tax effect of $0.1, ($0.5), and $0.0) | (0.2) | 1.3 | (1.4)
Change in defined benefit pension items (net of tax effect of ($0.7), ($0.9), and $0.9) | 4.5 | (5.5) | (4.6)
Net change in cumulative foreign currency translation gain (loss) (net of tax effect of ($4.8), $0.2, and $0.5) | 81.6 | (52.1) | (34.7)
Total other comprehensive income (loss) | 54.7 | (57.4) | (67.8)
Total comprehensive loss | $ (512.2) | $ (639.5) | $ (398.3)

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