v3.26.3
Document and Entity Information - shares
 9 Months Ended
Sep. 30, 2026
Nov. 12, 2026
Document Information [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Quarterly Report true  
Document Period End Date Sep. 30, 2026  
Document Fiscal Year Focus 2026  
Current Fiscal Year End Date --12-31  
Document Fiscal Period Focus Q3  
Document Transition Report false  
Entity File Number 000-56622  
Entity Registrant Name Apollo Asset Backed Credit Company LLC  
Entity Central Index Key 0002000597  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 93-3760466  
Entity Address, Address Line One 9 West 57th Street  
Entity Address, Address Line Two 42nd Floor  
Entity Address, City or Town New York  
Entity Address, State or Province NY  
Entity Address, Postal Zip Code 10019  
City Area Code 212  
Local Phone Number 515-3200  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Shell Company false  
Series I, Common Class A-I    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   1,577,651
Series I, Common Class F-I    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   4,536,051
Series I, Common Class F-S    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   110
Series I, Common Class T-I    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   1,904,207
Series I, Common Class T-S    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   2,950,335
Series I, Common Class I    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   1,031,404
Series I, Common Class S    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   14,300
Series I, Common Class P-I    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   23,160
Series I, Common Class P-S    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   377,943
Series I, Common Class V    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   40
Series I, Common Class E    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   6,307
Series II, Common Class A-I    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   3,066,466
Series II, Common Class A-II    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   0
Series II, Common Class F-I    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   17,604,246
Series II, Common Class F-S    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   2,860
Series II, Common Class T-I    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   6,035,268
Series II, Common Class T-S    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   6,644,472
Series II, Common Class P-I    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   56,347
Series II, Common Class P-S    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   8,778,001
Series II, Common Class I    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   14,276,896
Series II, Common Class BD    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   8,817,282
Series II, Common Class S    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   27,808
Series II, Common Class E    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   2,252,889
Serirs II, Common Class F-I (Acc)    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   0
Series II, Common Class I (Acc)    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   0
Series II, Common Class V    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   40