NONCONTROLLING INTERESTS Noncontrolling Interests (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Mar. 31, 2025	Dec. 31, 2024	Mar. 31, 2024	Dec. 31, 2023
Noncontrolling Interest [Line Items]
Total equity	$ 18,592	$ 18,800	$ 18,592	$ 18,800		$ 17,851
Percentage of Membership Interests in Diamond Infrastructure Solutions Sold	40.00%		40.00%
Proceeds from Noncontrolling Interests			$ 2,433	0
Additional Percentage of Dow InfraCo Membership Interests Available for Purchase	9.00%		9.00%
Additional Expected Cash Proceeds for Sale of 9 percent Membership Interest in InfraCo	$ 600		$ 600
Noncontrolling Interest [Member]
Noncontrolling Interest [Line Items]
Total equity	1,361	482	1,361	482	$ 507	496	$ 492	$ 501
Net income attributable to noncontrolling interests	34	19	51	41
Distributions to noncontrolling interests 1	(26)	(25)	(48)	(39)
Cumulative translation adjustments	12	(4)	28	(20)
Noncontrolling Interest, Increase from Sale of Parent Equity Interest	834	0	834	0
Other	0	0	0	(1)
Dividends Paid to a Joint Venture Not Included in Distributions to NCI	8	8	8	8
Proceeds from Noncontrolling Interests	2,400
Additional Paid-in Capital [Member]
Noncontrolling Interest [Line Items]
Total equity	10,758	9,012	10,758	9,012	$ 9,195	$ 9,203	$ 8,942	$ 8,880
Noncontrolling Interest in Net Income (Loss) Other Noncontrolling Interests, Redeemable	$ 1,540	$ 0	$ 1,540	$ 0