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Accumulated Other Comprehensive Loss
3 Months Ended
Apr. 30, 2023
Equity [Abstract]  
Accumulated Other Comprehensive Loss Accumulated Other Comprehensive Loss
Accumulated other comprehensive loss, net of taxes, consisted of the following at April 30, 2023:
Net Unrealized Gains (Losses) on Derivative InstrumentsNet Unrealized Gains (Losses) on Available-for-Sale Debt SecuritiesDefined Benefit Pension ComponentsForeign Currency Translation AdjustmentsTotal
Balances, January 31, 2023$64 $18 $(19)$(248)$(185)
Other comprehensive income (loss) before reclassifications— (9)— 
Pre-tax gains reclassified from accumulated other comprehensive loss(22)— — — (22)
Tax effects— — 
Net current period other comprehensive (loss) income(13)— (4)(15)
Balances, April 30, 2023$51 $20 $(19)$(252)$(200)

Accumulated other comprehensive loss, net of taxes, consisted of the following at April 30, 2022:
Net Unrealized Gains (Losses) on Derivative InstrumentsNet Unrealized Gains on Available-for-Sale Debt SecuritiesDefined Benefit Pension ComponentsForeign Currency Translation AdjustmentsTotal
Balances, January 31, 2022$24 $18 $(16)$(150)$(124)
Other comprehensive income (loss) before reclassifications65 (1)— (75)(11)
Pre-tax gains reclassified from accumulated other comprehensive loss(2)— (3)— (5)
Tax effects(8)— — — (8)
Net current period other comprehensive income (loss)55 (1)(3)(75)(24)
Balances, April 30, 2022$79 $17 $(19)$(225)$(148)

Reclassifications related to gains and losses on available-for-sale debt securities are included in “Interest and other income (expense), net.” Refer to Note 15, “Derivative Instruments,” for the amount and location of reclassifications related to derivative instruments. Reclassifications of the defined benefit pension components of net periodic benefit cost are included in “Interest and other income (expense), net.”