RETIREMENT PENSION PLANS - Pension and Other Postretirement Benefits (Details) - USD ($) $ in Millions	Sep. 30, 2019	Sep. 30, 2018
Retirement Benefits [Abstract]
Pension liability	$ 266	$ 177
Retiree medical liability — long term (see Note 22)	56	73
Other	14	12
Total retirement benefits	$ 336	$ 262

No definition available.

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- Definition

Amount of liability, recognized in statement of financial position, for defined benefit pension plan, classified as noncurrent. Excludes other postretirement benefit plan.

+ References

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- Definition

Amount of liability, classified as noncurrent, for retirement benefits, classified as other.

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- Definition

Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as noncurrent.

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- Definition

For a classified balance sheet, the carrying amount as of the balance sheet date of the portion of the obligations recognized for the various benefits provided to former or inactive employees, their beneficiaries, and covered dependents after employment but before retirement that is payable after one year (or beyond the operating cycle if longer).

+ References

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