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Derivative Instruments - Effects of Designated and Undesignated Hedging Instruments (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Aug. 31, 2023 | Aug. 31, 2022 | Aug. 31, 2023 | Aug. 31, 2022
Effect of our undesignated derivative instruments on our results of operations |  |  |  |
Net Gain (Loss) Recognized in Income (Loss) | $ 28.9 | $ (24.2) | $ 6.9 | $ 30.5
Foreign currency contracts | Selling, general, and administrative expenses |  |  |  |
Effect of our undesignated derivative instruments on our results of operations |  |  |  |
Net Gain (Loss) Recognized in Income (Loss) | 9.8 | (8.8) | 22.5 | (2.6)
Commodity derivative contracts | Cost of product sold |  |  |  |
Effect of our undesignated derivative instruments on our results of operations |  |  |  |
Net Gain (Loss) Recognized in Income (Loss) | 19.1 | (15.4) | (15.6) | 33.1
Cash flow hedging |  |  |  |
Effect of our derivative instruments designated in cash flow hedging relationships on our results of operations, net of income tax effect |  |  |  |
Net Gain (Loss) Recognized in OCI | 70.6 | (8.2) | 150.5 | 87.0
Net Gain (Loss) Reclassified from AOCI to Income (Loss) | 39.0 | 10.1 | 65.2 | 20.1
Cash flow hedging | Foreign currency contracts |  |  |  |
Effect of our derivative instruments designated in cash flow hedging relationships on our results of operations, net of income tax effect |  |  |  |
Net Gain (Loss) Recognized in OCI | 70.6 | (8.2) | 149.9 | 71.3
Cash flow hedging | Foreign currency contracts | Sales |  |  |  |
Effect of our derivative instruments designated in cash flow hedging relationships on our results of operations, net of income tax effect |  |  |  |
Net Gain (Loss) Reclassified from AOCI to Income (Loss) | (0.2) | (0.6) | (0.2) | (1.2)
Cash flow hedging | Foreign currency contracts | Cost of product sold |  |  |  |
Effect of our derivative instruments designated in cash flow hedging relationships on our results of operations, net of income tax effect |  |  |  |
Net Gain (Loss) Reclassified from AOCI to Income (Loss) | 39.3 | 10.8 | 65.7 | 21.9
Cash flow hedging | Pre-issuance hedge contracts |  |  |  |
Effect of our derivative instruments designated in cash flow hedging relationships on our results of operations, net of income tax effect |  |  |  |
Net Gain (Loss) Recognized in OCI | 0.0 | 0.0 | 0.6 | 15.7
Cash flow hedging | Pre-issuance hedge contracts | Interest expense |  |  |  |
Effect of our derivative instruments designated in cash flow hedging relationships on our results of operations, net of income tax effect |  |  |  |
Net Gain (Loss) Reclassified from AOCI to Income (Loss) | $ (0.1) | $ (0.1) | $ (0.3) | $ (0.6)

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