Dow Consolidated Statements of Income Statement - USD ($) shares in Millions, $ in Millions	3 Months Ended
Mar. 31, 2025	Mar. 31, 2024
Income Statement [Abstract]
Net sales	$ 10,431	$ 10,765
Cost of sales	9,760	9,488
Research and development expenses	200	204
Selling, general and administrative expenses	366	442
Amortization of intangibles	76	81
Restructuring and asset related charges - net	208	45
Equity in earnings (losses) of nonconsolidated affiliates	(20)	17
Sundry income (expense) - net	13	61
Interest income	28	65
Interest expense and amortization of debt discount	216	199
Income (loss) before income taxes	(374)	449
Credit for income taxes	(84)	(89)
Net income (loss)	(290)	538
Net income attributable to noncontrolling interests	17	22
Net income (loss) available for The Dow Chemical Company common stockholder	$ (307)	$ 516
Earnings (loss) per common share - basic	$ (0.44)	$ 0.73
Earnings (loss) per common share - diluted	$ (0.44)	$ 0.73
Weighted-average common shares outstanding - basic	706.9	704.5
Weighted-average common shares outstanding - diluted	706.9	705.5

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

Name:	us-gaap_AmortizationOfIntangibleAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.