STOCKHOLDERS' EQUITY (Common Stock) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2017	Apr. 01, 2019	Dec. 31, 2018	Sep. 01, 2017	Aug. 31, 2017
Class of Stock [Line Items]
Common stock authorized (in shares)	5,000,000,000			100
Common Stock, Par or Stated Value Per Share	$ 0.01			$ 0.01
Common stock issued (in shares)	751,228,644			100
Non-Employee Directors | Common Stock
Class of Stock [Line Items]
Stock Issued During Period, Shares, Employee Stock Purchase Plans	2,500,000	0
Dow Inc. [Member]
Class of Stock [Line Items]
Common stock authorized (in shares)			5,000,000,000	100
Common Stock, Par or Stated Value Per Share			$ 0.01	$ 0.01
Common stock issued (in shares)			748,771,240	100
The Dow Chemical Company
Class of Stock [Line Items]
Common stock authorized (in shares)	100		100	100
Common Stock, Par or Stated Value Per Share	$ 0.01		$ 0.01	$ 0.01	$ 0.01	$ 2.50
Common stock issued (in shares)	100			100	100