ORGANIZATION, BASIS OF PRESENTATION, BUSINESS DESCRIPTION AND SIGNIFICANT ACCOUNTING POLICIES (Details)	Mar. 31, 2022 USD ($) Business shares
ORGANIZATION, BASIS OF PRESENTATION, BUSINESS DESCRIPTION AND SIGNIFICANT ACCOUNTING POLICIES [Abstract]
Number of businesses to be combined | Business	2
Cash to be contributed by Emerson | $	$ 6,014,000,000
Shares of Newco common stock to be issued (in shares) | shares	0.42
Percentage of outstanding shares of New AspenTech common stock to be beneficially owned by Emerson at Closing	55.00%