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Commitments and Contingencies - Purchase Obligations (Details) - USD ($) $ in Millions | Sep. 30, 2018 | Sep. 30, 2017
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Commitments and Contingencies Disclosure [Abstract] |  |
Purchase Obligation, Due in Next Twelve Months | $ 1,204.7 |
Purchase Obligation, Due in Second and Third Year | 1.7 |
Purchase Obligation, Due in Fourth and Fifth Year | 1.8 |
Purchase Obligation, Due after Fifth Year |  | $ 2.0
Other Commitment, Due in Next Twelve Months | $ 1,406.0 |

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- References No definition available. + Details
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- Definition Minimum amount of other commitment maturing in the next fiscal year following the latest fiscal year for commitments not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in this taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions. + References No definition available. + Details
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- Definition Minimum amount of purchase arrangement maturing after the fifth fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments. + References No definition available. + Details
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- Definition Minimum amount of purchase arrangement maturing in the fourth and fifth fiscal years following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments. + References No definition available. + Details
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- Definition Minimum amount of purchase arrangement maturing in the next fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments. + References No definition available. + Details
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- Definition Minimum amount of purchase arrangement maturing in the second and third fiscal years following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments. + References No definition available. + Details
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