Subsequent Events	6 Months Ended
Mar. 31, 2019
Subsequent Events [Abstract]
Subsequent Events	NOTE Q – SUBSEQUENT EVENTS On April 30, 2019, Ashland announced an intention to commence a $200 million share repurchase program under Ashland’s Board of Directors approved $1 billion stock repurchase program in fiscal 2018. Under the program, shares may be repurchased in privately negotiated and/or open market transactions, including under plans complying with Rule 10b5-1 of the Exchange Act. The $200 million repurchase will be the first repurchases made under the $1 billion program.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

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