v3.26.1
SIGNIFICANT TRANSACTIONS - Schedule of SPAC Merger (Details) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Aug. 14, 2025
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Proceeds from SPAC Trust $ 178      
SPAC professional fees (16)      
Proceeds from SPAC Merger 162      
Kyivstar Group professional fees (30)      
Net proceeds from SPAC Merger $ 132 $ 132 $ 0 $ 0
Number of shares (in shares) 23,921,083      
SPAC Merger equity issued $ 298      
Kyivstar Group professional fees (30)      
SPAC Merger equity issued, net of transaction costs 268      
Fair value of consideration 324      
Fair value of Cohen Circle Net Assets acquired 162      
Excess of fair value of consideration over Cohen Circle’s net assets (IFRS 2 charge for listing service) $ 162 $ 162 $ 0 $ 0
Public Investors        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Shares issued (in dollars per share) $ 12.70      
Number of shares (in shares) 17,152,985      
SPAC Merger equity issued $ 218      
Shares issued (in dollars per share) $ 12.70      
Public Investors | Shares issued        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Shares issued (in dollars per share) 12.70      
Shares issued (in dollars per share) $ 12.70      
Number issued (in shares) 17,152,985      
Fair value of consideration $ 218      
Public Investors | Warrants issued        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Shares issued (in dollars per share) $ 3.35      
Shares issued (in dollars per share) $ 3.35      
Number issued (in shares) 7,666,629      
Fair value of consideration $ 26      
Non-Redeeming Shareholders        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Shares issued (in dollars per share) $ 12.70      
Number of shares (in shares) 757,745      
SPAC Merger equity issued $ 10      
Shares issued (in dollars per share) $ 12.70      
Non-Redeeming Shareholders | Shares issued        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Shares issued (in dollars per share) 12.70      
Shares issued (in dollars per share) $ 12.70      
Number issued (in shares) 757,745      
Fair value of consideration $ 10      
Sponsor and Cantor        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Shares issued (in dollars per share) $ 12.70      
Number of shares (in shares) 4,686,515      
SPAC Merger equity issued $ 59      
Shares issued (in dollars per share) $ 12.70      
Sponsor | Shares issued        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Shares issued (in dollars per share) 12.70      
Shares issued (in dollars per share) $ 12.70      
Number issued (in shares) 4,686,515      
Fair value of consideration $ 59      
Sponsor Vesting Shares, Tranche 1        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Shares issued (in dollars per share) $ 8.70      
Number of shares (in shares) 661,919      
SPAC Merger equity issued $ 6      
Shares issued (in dollars per share) $ 8.70      
Sponsor Vesting Shares, Tranche 1 | Shares issued        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Shares issued (in dollars per share) 8.70      
Shares issued (in dollars per share) $ 8.70      
Number issued (in shares) 661,919      
Fair value of consideration $ 6      
Sponsor Vesting Shares, Tranche 2        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Shares issued (in dollars per share) $ 8.10      
Number of shares (in shares) 661,919      
SPAC Merger equity issued $ 5      
Shares issued (in dollars per share) $ 8.10      
Sponsor Vesting Shares, Tranche 2 | Shares issued        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Shares issued (in dollars per share) 8.10      
Shares issued (in dollars per share) $ 8.10      
Number issued (in shares) 661,919      
Fair value of consideration $ 5