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Receivables from customers, net and notes receivable, net (Tables) | 12 Months Ended
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Sep. 30, 2018
Receivables from customers and notes receivable, net [Abstract] |
Allowance for Doubtful Accounts and Notes Receivables [Table Text Block] | Activity in the allowance for doubtful accounts for the years ended September 30, 2018, 2017, and 2016 was as follows:
(in millions) | 2018 |  | 2017 |  | 2016
Balance, beginning of year | $ | 54.6 |  |  | $ | 9.7 |  |  | $ | 11.2 |
Provision for bad debts | 3.9 |  |  | 51.0 |  |  | 4.2 |
Charge-offs | (0.3 | ) |  | (6.1 | ) |  | (5.7 | )
Balance, end of year | $ | 58.2 |  |  | $ | 54.6 |  |  | $ | 9.7 |

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- Definition Receivables from customers and notes receivable, net [Abstract] + References No definition available. + Details
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- Definition Tabular disclosure of financing receivables (examples of financing receivables include loans, trade accounts receivable and notes receivable) and activity in the allowance for credit losses account. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
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