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Accumulated Other Comprehensive Loss (Tables) | 3 Months Ended
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Apr. 30, 2022
Equity [Abstract] |
Schedule of Accumulated Other Comprehensive Loss, Net of Taxes | Accumulated other comprehensive loss, net of taxes, consisted of the following at April 30, 2022:
| Net Unrealized Gains (Losses) on Derivative Instruments |  | Net Unrealized Gains (Losses) on Available-for-Sale Debt Securities |  | Defined Benefit Pension Components |  | Foreign Currency Translation Adjustments |  | Total
Balances, January 31, 2022 | $ | 24 |  |  | $ | 18 |  |  | $ | (16) |  |  | $ | (150) |  |  | $ | (124) |
Other comprehensive income (loss) before reclassifications | 65 |  |  | (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) |
Accumulated other comprehensive loss, net of taxes, consisted of the following at April 30, 2021:
| Net Unrealized Gains (Losses) on Derivative Instruments |  | Net Unrealized Gains on Available-for-Sale Debt Securities |  | Defined Benefit Pension Components |  | Foreign Currency Translation Adjustments |  | Total
Balances, January 31, 2021 | $ | (24) |  |  | $ | 6 |  |  | $ | (21) |  |  | $ | (87) |  |  | $ | (126) |
Other comprehensive income before reclassifications | 8 |  |  | 4 |  |  | — |  |  | 12 |  |  | 24 |
Pre-tax losses reclassified from accumulated other comprehensive loss | 4 |  |  | — |  |  | — |  |  | — |  |  | 4 |
Tax effects | (2) |  |  | — |  |  | — |  |  | (2) |  |  | (4) |
Net current period other comprehensive income | 10 |  |  | 4 |  |  | — |  |  | 10 |  |  | 24 |
Balances, April 30, 2021 | $ | (14) |  |  | $ | 10 |  |  | $ | (21) |  |  | $ | (77) |  |  | $ | (102) |

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