Shareholders' Equity (Details) - Common Stock - USD ($) $ / shares in Units, shares in Millions, $ in Millions |
3 Months Ended | 9 Months Ended | ||||
|---|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Sep. 30, 2025 |
Sep. 30, 2024 |
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| Equity, Class of Treasury Stock [Line Items] | ||||||
| Shares repurchased | 2.1 | 0.6 | 9.1 | 3.9 | ||
| Average price per share (a) | $ 98.86 | $ 110.98 | $ 100.34 | $ 112.02 | ||
| Total Share Repurchase Cost | $ 200.9 | $ 62.7 | $ 917.4 | $ 438.2 | ||
| Sales and Excise Tax Payable, Current | 8.4 | 3.4 | 8.4 | 3.4 | $ 6.1 | $ 2.2 |
| Accrued repurchases of common stock | $ 1.0 | $ 2.9 | $ 1.0 | $ 2.9 | $ 2.0 | $ 0.2 |
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- Definition Accrued repurchases of common stock No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The cash outflow to reacquire common stock during the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Carrying value as of the balance sheet date of liabilities incurred through that date and payable for statutory sales and use taxes, including value added tax. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Total cost of shares repurchased divided by the total number of shares repurchased. No definition available.
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- Definition Number of shares that have been repurchased during the period and are being held in treasury. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Details
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