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OTHER LIABILITIES - Movement of certain provisions (Details)
₫ in Millions
 12 Months Ended
Mar. 10, 2023
Mar. 09, 2023
VND (₫)
Dec. 31, 2023
VND (₫)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
VND (₫)
Dec. 31, 2021
VND (₫)
Nam An            
OTHER LIABILITIES            
Proceeds From Contract   ₫ 5,875,000        
Distributions Percentage on Funds Received   0.25%        
Percentage of Cooperation Capital, If Revenue Schedule is not Met   5.00%        
Agreement Term 18 months          
Additional, Agreement Term 18 months          
Nonrelated party            
OTHER LIABILITIES            
Provision beginning of period     ₫ 2,182,368   ₫ 4,451,426 ₫ 1,872,879
Provision made during the year     2,984,642   1,013,489 4,584,680
Change in accounting estimate for pre-existing provisions     222,988   (190,101) (211,399)
Reversal of provision           (245,101)
Offsetting against advances           (402,777)
Utilized     (1,323,197)   (3,092,446) (1,146,856)
Provision at end of period     4,066,801 $ 170,401,450 2,182,368 4,451,426
Provision for contract penalty and compensation for the ICE phasing-out | Nonrelated party            
OTHER LIABILITIES            
Provision beginning of period     1,321,147   3,937,545  
Provision made during the year     1,111,317   272,779 4,340,322
Change in accounting estimate for pre-existing provisions         (157,349)  
Offsetting against advances           (402,777)
Utilized     (956,261)   (2,731,828)  
Provision at end of period     1,476,203 61,853,809 1,321,147 3,937,545
Provision related to purchase commitment | Nonrelated party            
OTHER LIABILITIES            
Provision beginning of period         178,411 1,444,833
Provision made during the year           65,981
Change in accounting estimate for pre-existing provisions         (7,728)  
Reversal of provision           (245,101)
Utilized         (170,683) (1,087,302)
Provision at end of period           178,411
Assurance-type warranties | Nonrelated party            
OTHER LIABILITIES            
Provision beginning of period     861,221   335,470 428,046
Provision made during the year     1,873,325   740,710 178,377
Change in accounting estimate for pre-existing provisions     222,988   (25,024) (211,399)
Utilized     (366,936)   (189,935) (59,554)
Provision at end of period     ₫ 2,590,598 $ 108,547,641 ₫ 861,221 ₫ 335,470