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Derivative Instruments and Hedging Activities - Effects of Derivative Instruments on the Condensed Consolidated Statements of Income and Changes in AOCI (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017
Derivatives Not Designated as Hedging Instruments |  |  |  |
Derivative Instruments, Gain (Loss) |  |  |  |
Gain (Loss) Recognized in Income | $ 105.4 | $ (40.8) | $ 70.9 | $ 90.7
Cash Flow Hedges |  |  |  |
Derivative Instruments, Gain (Loss) |  |  |  |
Gain (Loss) Recognized in AOCI | 5.2 | (10.0) | 2.3 | 7.5
Gain (Loss) Reclassified from AOCI into Income | (0.4) | 0.0 | (4.2) | 14.5
Foreign currency contracts | Derivatives Not Designated as Hedging Instruments | Gain (loss) on foreign currency contracts, net |  |  |  |
Derivative Instruments, Gain (Loss) |  |  |  |
Gain (Loss) Recognized in Income | 25.6 | (16.2) | 9.8 | (16.1)
Foreign currency contracts | Cash Flow Hedges |  |  |  |
Derivative Instruments, Gain (Loss) |  |  |  |
Gain (Loss) Recognized in AOCI | 3.9 | (10.2) | (0.6) | 5.3
Foreign currency contracts | Cash Flow Hedges | Cost of sales |  |  |  |
Derivative Instruments, Gain (Loss) |  |  |  |
Gain (Loss) Reclassified from AOCI into Income | 0.0 | 0.8 | (3.1) | 17.6
Cross-currency contracts | Cash Flow Hedges |  |  |  |
Derivative Instruments, Gain (Loss) |  |  |  |
Gain (Loss) Recognized in AOCI | 0.5 | 0.3 | 0.9 | 0.5
Cross-currency contracts | Cash Flow Hedges | Interest expense/other operating income, net |  |  |  |
Derivative Instruments, Gain (Loss) |  |  |  |
Gain (Loss) Reclassified from AOCI into Income | 0.3 | 0.1 | 0.8 | (0.2)
Commodity contracts | Derivatives Not Designated as Hedging Instruments | Cost of sales |  |  |  |
Derivative Instruments, Gain (Loss) |  |  |  |
Gain (Loss) Recognized in Income | 80.9 | (25.2) | 63.5 | 105.3
Commodity contracts | Derivatives Not Designated as Hedging Instruments | Revenues |  |  |  |
Derivative Instruments, Gain (Loss) |  |  |  |
Gain (Loss) Recognized in Income | (1.1) | 0.6 | (2.6) | 1.5
Commodity contracts | Derivatives Not Designated as Hedging Instruments | Operating and administrative expenses |  |  |  |
Derivative Instruments, Gain (Loss) |  |  |  |
Gain (Loss) Recognized in Income |  |  | 0.2 | 0.0
Interest rate contracts | Cash Flow Hedges |  |  |  |
Derivative Instruments, Gain (Loss) |  |  |  |
Gain (Loss) Recognized in AOCI | 0.8 | (0.1) | 2.0 | 1.7
Interest rate contracts | Cash Flow Hedges | Interest expense |  |  |  |
Derivative Instruments, Gain (Loss) |  |  |  |
Gain (Loss) Reclassified from AOCI into Income | $ (0.7) | $ (0.9) | $ (1.9) | $ (2.9)

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- Definition The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4D -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624177-113959 + Details
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- Definition The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 + Details
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