PENSION & POSTRETIREMENT PLANS - Schedule of Pension and Postretirement Plan Expenses (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Mar. 31, 2024 |
Mar. 31, 2023 |
Mar. 31, 2024 |
Mar. 31, 2023 |
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| Retirement Benefits [Abstract] | ||||
| Service cost | $ 9 | $ 12 | $ 18 | $ 24 |
| Interest cost | 55 | 54 | 110 | 108 |
| Expected return on plan assets | (74) | (71) | (148) | (142) |
| Net amortization | (14) | (20) | (28) | (40) |
| Total | $ (24) | $ (25) | $ (48) | $ (50) |
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- Definition The amount of gain/(loss), transition obligations/(assets) and prior service cost/(credit) recognized in net periodic benefit cost. No definition available.
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- References No definition available.
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- Definition Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of cost recognized for passage of time related to defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of net periodic benefit cost (credit) for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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