LEASES (Details) ₫ in Millions, $ in Millions	6 Months Ended
Jun. 30, 2025 VND (₫)	Jun. 30, 2025 USD ($)	Jun. 30, 2024 VND (₫)
LEASES
Revenue from leasing activities	₫ 19,800.0	$ 0.8	₫ 226,000.0
Cost of leasing activities	₫ 25,800.0	$ 1.0	₫ 211.2

Cost of goods sold for sales-type financing lease.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 270
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482964/270-10-50-6A

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479773/842-30-50-5

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