v3.26.1
Acquisitions and Dispositions (Details)
€ in Millions, $ in Millions
3 Months Ended 6 Months Ended
Apr. 30, 2026
EUR (€)
Apr. 30, 2026
USD ($)
Feb. 18, 2026
EUR (€)
Feb. 18, 2026
USD ($)
Jun. 30, 2026
USD ($)
Jun. 30, 2026
USD ($)
Dec. 31, 2025
USD ($)
Disposal group, disposed of by sale, not discontinued operations | UPC Slovakia              
Business Combination [Line Items]              
Net cash proceeds € 94.4 $ 110.7          
Disposed of by sale | UPC Slovakia              
Business Combination [Line Items]              
Held-for-sale assets             $ 122.5
Held-for-sale liabilities             $ 18.2
Accumulated foreign currency translation losses   $ 3.8          
Disposed of by sale | O2 slovakia              
Business Combination [Line Items]              
Term of transitional services 42 months 42 months          
Revenue associated with transitional services         $ 0.8    
Transitional period for continued brand use 3 years 3 years          
Held for sale | UPC Slovakia              
Business Combination [Line Items]              
Impairment charge           $ 0.8  
VodafoneZiggo JV (nonconsolidated)              
Business Combination [Line Items]              
Interest acquired (in percent)     50.00% 50.00%      
Consideration transferred     € 1,000.0 $ 1,100.0      
VodafoneZiggo JV (nonconsolidated) | Liberty Global              
Business Combination [Line Items]              
Interest acquired (in percent)     10.00% 10.00%