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Income Taxes (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Income Tax Disclosure [Line Items] |  |
Effective tax rate (as a percent) | 21.00% | 15.50%
Tax at federal statutory rate (as a percent) | 21.00% |
Tax rate changes |  | $ 16.1
Income tax credits and incentives | $ 8.6 | 21.9
Tax rate changes |  | 16.1
Tax expense related to audit settlement |  | 11.6
Tax expense related to Foreign residual income | 8.5 | $ 13.3
Gross book-tax differences from non-U.S. subsidiaries | 1,300.0 |
Foreign |  |
Income Tax Disclosure [Line Items] |  |
Tax benefit related to the release of a valuation allowance on net operating losses | $ 21.9 |

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