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v3.7.0.1

Divestitures Divestitures - Schedule of assets and liabilities held for sale (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016 | Sep. 30, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Document Period End Date |  |  | Jun. 30, 2017 |  |
Insurance Segment [Member] |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Discontinued Operation, Provision for Loss (Gain) on Disposal, Net of Tax | $ 36.1 | $ 217.2 | $ (35.6) | $ 240.7 |
Disposal Group, Including Discontinued Operation, Investment | 22,767.2 |  | 22,767.2 |  | $ 21,160.6
Disposal Group, Including Discontinued Operations, Funds Withheld Receivables | 728.6 |  | 728.6 |  | 671.6
Disposal Group, Including Discontinued Operation, Cash and Cash Equivalents | 821.8 |  | 821.8 |  | 896.0
Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net | 6.7 |  | 6.7 |  | 17.4
Disposal Group, Including Discontinued Operation, Accrued Investment Income | 204.5 |  | 204.5 |  | 213.7
Disposal Group, Including Discontinued Operation, Reinsurance Recoverable | 2,352.8 |  | 2,352.8 |  | 2,344.4
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment | 24.3 |  | 24.3 |  | 18.5
Disposal Group, Including Discontinued Operation, Intangible Assets | 1,134.2 |  | 1,134.2 |  | 1,065.5
Disposal Group, Including Discontinued Operation, Other Assets | 98.8 |  | 98.8 |  | 259.4
Disposal Group, Including Discontinued Operation, Write-down of assets held for sale to fair value less costs to sell | (327.2) |  | (327.2) |  | (362.8)
Disposal Group, Including Discontinued Operation, Assets [Abstract] |  |  |  |  |
Disposal Group, Including Discontinued Operation, Assets | 27,811.7 |  | 27,811.7 |  | 26,284.3
Disposal Group, Including Discontinued Operation, Insurance Reserves | 24,515.9 |  | 24,515.9 |  | 23,404.6
Disposal Group, Including Discontinued Operation, Debt | 405.0 |  | 405.0 |  | 398.8
Disposal Group, Including Discontinued Operation, Accounts Payable and Accrued Liabilities | 59.4 |  | 59.4 |  | 63.1
Disposal Group, Including Discontinued Operation, Deferred Tax Liabilities, Current | 14.1 |  | 14.1 |  | 9.9
Disposal Group, Including Discontinued Operation, Other Liabilities | 876.5 |  | 876.5 |  | 677.4
Disposal Group, Including Discontinued Operation, Liabilities | 25,870.9 |  | 25,870.9 |  | $ 24,553.8
Front Street RE (Cayman) Ltd. [Member] |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Discontinued Operation, Provision for Loss (Gain) on Disposal, Net of Tax |  |  | (22.4) |  |
Disposal Group, Including Discontinued Operation, Write-down of assets held for sale to fair value less costs to sell | $ 22.4 |  | $ 22.4 |  |

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