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Derivative Financial Instruments (Details 2) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jan. 31, 2020 | Jan. 31, 2019 | Jan. 31, 2020 | Jan. 31, 2019
Gains and losses recognized in cost of products sold on derivatives not designated as qualified hedging instruments |  |  |  |
Total gains (losses) recognized in cost of products sold | $ (7.0) | $ (25.6) | $ (5.6) | $ (54.2)
Commodity contracts |  |  |  |
Gains and losses recognized in cost of products sold on derivatives not designated as qualified hedging instruments |  |  |  |
Total gains (losses) recognized in cost of products sold | (7.3) | (25.8) | (4.8) | (55.9)
Foreign currency exchange contracts |  |  |  |
Gains and losses recognized in cost of products sold on derivatives not designated as qualified hedging instruments |  |  |  |
Total gains (losses) recognized in cost of products sold | $ 0.3 | $ 0.2 | $ (0.8) | $ 1.7

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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/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4CC -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL109998890-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959 + Details
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