Balance Outstanding Related to Transfers of Accounts Receivable

No definition available.

Name:	dow_BalanceOutstandingRelatedToTransfersOfAccountsReceivable
Namespace Prefix:	dow_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Trade Accounts Receivable Eligible for Sale

+ References

No definition available.

+ Details

Name:	dow_TradeAccountsReceivableEligibleForSale
Namespace Prefix:	dow_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Transfers of Accounts Receivable, Amounts Recognized in the Balance Sheet (Not Remitted)

+ References

No definition available.

+ Details

Name:	dow_TransfersOfAccountsReceivableAmountsRecognizedInTheBalanceSheetNotRemitted
Namespace Prefix:	dow_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Cash Flows between a transferor and a transferee attributable to newly transferred assets related to either a securitization, asset-backed financing arrangement, or similar transfer in which the transferor has continuing involvement with the transferred financial assets underlying the transaction (including, but not limited to, servicing, recourse, and restrictions on transferor's interests in the transferred financial assets).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 860
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (d)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481326/860-20-50-3

+ Details

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

- Definition

Amount of derecognized financial assets from transactions which comprise an initial transfer and an agreement entered into in contemplation of the initial transfer resulting in retention of substantially all of the exposure to the economic return throughout the term of the transaction, at the date of derecognition.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 4D
-Subparagraph (a)
-SubTopic 20
-Topic 860
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481326/860-20-50-4D

+ Details

Name:	us-gaap_TransferOfFinancialAssetsAccountedForAsSalesAmountDerecognized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_CreditFacilityAxis=dow_AccountsReceivableFacilityUSMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=dow_AccountsReceivableFacilityEuropeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

TRANSFERS OF FINANCIAL ASSETS (Details) € in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2025 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2025 EUR (€)	Dec. 31, 2024 USD ($)
Cash Flows Between Transferor and Transferee, Proceeds from New Transfers	$ 24	$ 623	$ 538	$ 1,050
Balance Outstanding Related to Transfers of Accounts Receivable	34		34			$ 287
Transfer of Financial Assets Accounted for as Sales, Amount Derecognized	5		5			278
Transfers of Accounts Receivable, Amounts Recognized in the Balance Sheet Not Remitted	29		29			$ 9
Accounts Receivable Facility, U.S.
Trade Accounts Receivable Eligible for Sale	$ 900		$ 900
Accounts Receivable Facility, Europe [Member]
Trade Accounts Receivable Eligible for Sale \| €					€ 500