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Derivative Instruments - Effects of Designated and Undesignated Hedging Instruments (Details) - USD ($) $ in Millions | 12 Months Ended
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Feb. 28, 2026 | Feb. 28, 2025 | Feb. 29, 2024
Effect of our undesignated derivative instruments on our results of operations |  |  |
Net Gain (Loss) Recognized in Income (Loss) | $ 29.1 | $ (30.0) | $ (29.6)
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) | 5.5 | (29.7) | 14.6
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) | 23.6 | (0.3) | (44.2)
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 | 359.7 | (159.5) | 205.6
Net Gain (Loss) Reclassified from AOCI to Income (Loss) | 77.2 | 97.1 | 135.6
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 | 364.7 | (161.8) | 205.7
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) | 0.9 | 0.8 | (0.1)
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) | 76.4 | 96.3 | 137.3
Cash flow hedging | Foreign currency contracts | Selling, general, and administrative expenses |  |  |
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) | 0.3 |  |
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 | (5.0) | 2.3 | (0.1)
Cash flow hedging | Pre-issuance hedge contracts | Interest expense, net |  |  |
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) | $ (0.4) | $ 0.0 | $ (1.6)

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- Definition Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 182 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480401/815-10-55-182 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4CC -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4CC Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 21 -Subparagraph (i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147476148/220-40-50-21 + Details
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- Definition Amount, after tax and before reclassification, of gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-11 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 10A -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-10A + Details
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