Dow Consolidated Statements of Income Statement - USD ($) shares in Millions, $ in Millions	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Net sales	$ 11,851	$ 15,264
Cost of sales	10,629	12,402
Research and development expenses	214	218
Selling, general and administrative expenses	428	498
Amortization of intangibles	81	88
Restructuring and asset related charges - net	541	186
Equity in earnings (losses) of nonconsolidated affiliates	(48)	174
Sundry income (expense) - net	79	148
Interest income	76	28
Interest expense and amortization of debt discount	185	167
Income (loss) before income taxes	(120)	2,055
Provision (credit) for income taxes	(47)	503
Net income (loss)	(73)	1,552
Net income (loss) attributable to noncontrolling interests	20	(17)
Net income (loss) available for The Dow Chemical Company common stockholder	$ (93)	$ 1,569
Earnings (loss) per common share - basic	$ (0.13)	$ 2.12
Earnings (loss) per common share - diluted	$ (0.13)	$ 2.11
Weighted-average common shares outstanding - basic	708.2	734.6
Weighted-average common shares outstanding - diluted	708.2	739.8

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.