RELATED PARTY TRANSACTIONS (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2024	Mar. 31, 2023
Related Party Transaction [Line Items]
Payments of Dividends	$ 43	$ 135
Increase (Decrease) in Income Taxes Receivable	220
Short-term Lease Cost	9	10
The Dow Chemical Company [Member]
Related Party Transaction [Line Items]
Payments of Dividends	43	135
Short-term Lease Cost	3
Commodity And Raw Material Purchases \| Cost of Sales [Member] \| The Dow Chemical Company [Member]
Related Party Transaction [Line Items]
Costs and Expenses, Related Party	260	319
Net Commission Expense \| Sundry Income (Expense), Net [Member] \| The Dow Chemical Company [Member]
Related Party Transaction [Line Items]
Costs and Expenses, Related Party	5	5
General and Administrative Expense \| Sundry Income (Expense), Net [Member] \| The Dow Chemical Company [Member]
Related Party Transaction [Line Items]
Costs and Expenses, Related Party	15	17
Activity Based Costs \| Cost of Sales [Member] \| The Dow Chemical Company [Member]
Related Party Transaction [Line Items]
Costs and Expenses, Related Party	148	$ 26
Insurance Settlement \| The Dow Chemical Company [Member]
Related Party Transaction [Line Items]
Costs and Expenses, Related Party	$ 22

Costs of sales and operating expenses for the period incurred from transactions with related parties.

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