v3.26.3
N-2
 12 Months Ended
Jul. 31, 2026
$ / shares
shares
Cover [Abstract]  
Entity Central Index Key 0002041900
Amendment Flag false
Entity Inv Company Type N-2
Document Type N-CSR
Entity Registrant Name Columbia Credit Income Opportunities Fund
Class A [Member]  
General Description of Registrant [Abstract]  
NAV Per Share | $ / shares $ 19.77
Capital Stock, Long-Term Debt, and Other Securities [Abstract]  
Outstanding Security, Title [Text Block] Class A
Outstanding Security, Held [Shares] | shares 3,661,234
Institutional Class [Member]  
General Description of Registrant [Abstract]  
NAV Per Share | $ / shares $ 19.78
Capital Stock, Long-Term Debt, and Other Securities [Abstract]  
Outstanding Security, Title [Text Block] Institutional Class
Outstanding Security, Held [Shares] | shares 496,105