Share-based Compensation - Summary of Performance-based Shares Activity (Detail) $ / shares in Units, $ in Millions |
12 Months Ended |
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Sep. 30, 2023
USD ($)
$ / shares
shares
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| Aggregate Intrinsic Value | |
| Stock price used to calculate aggregate intrinsic value (in dollars per share) | $ 230.01 |
| Performance-based Shares | |
| Shares | |
| Beginning balance (in shares) | shares | 834,196 |
| Granted (in shares) | shares | 551,818 |
| Vested and earned (in shares) | shares | (219,523) |
| Unearned (in shares) | shares | (167,989) |
| Ending balance (in shares) | shares | 998,502 |
| Weighted- Average Grant Date Fair Value | |
| Beginning balance (in dollars per share) | $ 199.92 |
| Granted (in dollars per share) | 221.32 |
| Vested and earned (in dollars per share) | 201.70 |
| Unearned (in dollars per share) | 194.42 |
| Ending balance (in dollars per share) | $ 212.28 |
| Weighted- Average Remaining Contractual Term (in years) | |
| Outstanding as of September 30, 2023 | 1 year |
| Aggregate Intrinsic Value | |
| Outstanding as of September 30, 2023 | $ | $ 230 |
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- References No definition available.
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Price of a single share of a number of saleable stocks of a company. No definition available.
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- References No definition available.
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- Definition Intrinsic value of outstanding award under share-based payment arrangement. Excludes share and unit options. No definition available.
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- Definition Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Unearned No definition available.
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- Definition Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Unearned, Weighted Average Grant Date Fair Value No definition available.
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- Details
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