v3.25.4
Long-lived Assets - Schedule of Goodwill (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Goodwill [Roll Forward]    
Goodwill beginning balance $ 2,981.0 $ 3,483.4
Acquisition   14.6
Foreign currency translation adjustments and other 26.5 (1.3)
Impairment   (515.7)
Goodwill ending balance 3,007.5 2,981.0
Accumulated goodwill impairments 3,300.0 3,300.0
Liberty Caribbean    
Goodwill [Roll Forward]    
Goodwill beginning balance 1,211.6 1,218.1
Acquisition   0.0
Foreign currency translation adjustments and other (3.7) (6.5)
Impairment   0.0
Goodwill ending balance 1,207.9 1,211.6
C&W Panama    
Goodwill [Roll Forward]    
Goodwill beginning balance 617.1 617.1
Acquisition   0.0
Foreign currency translation adjustments and other 0.0 0.0
Impairment   0.0
Goodwill ending balance 617.1 617.1
Liberty Networks    
Goodwill [Roll Forward]    
Goodwill beginning balance 652.2 655.9
Acquisition   0.0
Foreign currency translation adjustments and other 17.1 (3.7)
Impairment   0.0
Goodwill ending balance 669.3 652.2
Liberty Puerto Rico    
Goodwill [Roll Forward]    
Goodwill beginning balance 0.0 501.1
Acquisition   14.6
Foreign currency translation adjustments and other   0.0
Impairment   (515.7)
Goodwill ending balance   0.0
Liberty Costa Rica    
Goodwill [Roll Forward]    
Goodwill beginning balance 500.1 491.2
Acquisition   0.0
Foreign currency translation adjustments and other 13.1 8.9
Impairment   0.0
Goodwill ending balance $ 513.2 $ 500.1