SHARE-BASED AND OTHER COMPENSATION, Employee Stock Purchase Plan (Details) - Employee Stock Purchase Plan - USD ($)	12 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for grant (in shares) (up to)	13,100,000
Limit on the number shares that eligible employees may purchase in any calendar year (lesser than) (in shares)	1,000
Limit on the value of shares that eligible employees may purchase in any calendar year	$ 25,000
Purchase price of the stock in relation to the market price (one day prior to the purchase)	85.00%
Number of shares sold during the period (in shares)	416,000	393,000	699,000
Discount from market value	15.00%	15.00%	15.00%
RSU share-based compensation amortization	$ 6,000,000	$ 5,000,000	$ 5,000,000

The purchase price of stock presented as a percentage of the market value one day prior to the purchase date.

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- Definition

The maximum fair market value of shares an employee can purchase under the plan per period.

+ References

No definition available.

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

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- Definition

Discount rate from fair value on purchase date that participants pay for shares.

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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.

+ References

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- Definition

The highest quantity of shares an employee can purchase under the plan per period.

+ References

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- Definition

Number of shares authorized for issuance under share-based payment arrangement.

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- Definition

Number of shares issued during the period as a result of an employee stock purchase plan.

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