v3.26.1
Subsequent Events - Additional Information (Details)
SFr / shares in Units, $ / shares in Units, shares in Millions, SFr in Millions
Aug. 10, 2026
USD ($)
Property
Jul. 13, 2026
CHF (SFr)
Jul. 09, 2026
CHF (SFr)
SFr / shares
shares
Jul. 01, 2026
USD ($)
Jun. 30, 2026
USD ($)
Dec. 31, 2025
USD ($)
Oct. 28, 2025
$ / shares
Subsequent Event [Line Items]              
Shares issued price per share | $ / shares             $ 0.001
Equity market capitalization         $ 1,054,000 $ 1,054,000  
0.993% Senior Unsecured Notes due 2026 [Member]              
Subsequent Event [Line Items]              
Debt instrument, interest rate         0.993% 0.993%  
5.000% Senior Unsecured Notes due 2027 [Member]              
Subsequent Event [Line Items]              
Debt instrument, interest rate         5.00% 5.00%  
Subsequent Event [Member]              
Subsequent Event [Line Items]              
Debt discount $ 123,000,000            
Number of properties sale | Property 5            
Sale of properties $ 172,000,000            
Subsequent Event [Member] | Minimum [Member]              
Subsequent Event [Line Items]              
Sale of assets       $ 200,000,000      
Subsequent Event [Member] | Maximum [Member]              
Subsequent Event [Line Items]              
Sale of assets       $ 400,000,000      
Subsequent Event [Member] | Infracore [Member]              
Subsequent Event [Line Items]              
Stock issued | shares     0.7        
Gross proceeds | SFr     SFr 38        
Reduction in ownership interest     48.50%        
Proceeds from repayment of outstanding loans | SFr   SFr 46          
Dividends receivable | SFr   SFr 28          
Subsequent Event [Member] | Infracore [Member] | Offering [Member]              
Subsequent Event [Line Items]              
Non-controlling ownership interest     70.00%        
Shares issued price per share | SFr / shares     SFr 54        
Stock issued | shares     3.7        
Gross proceeds | SFr     SFr 200        
Subsequent Event [Member] | 9.25% New Secured Notes due 2032 [Member]              
Subsequent Event [Line Items]              
Debt, face amount 2,400,000,000            
Proceeds from notes $ 1,000,000,000            
Debt instrument, interest rate 9.25%            
Debt instrument maturity year 2032            
Subsequent Event [Member] | 0.993% Senior Unsecured Notes due 2026 [Member]              
Subsequent Event [Line Items]              
Debt instrument, interest rate 0.993%            
Debt instrument maturity year 2026            
Subsequent Event [Member] | 5.000% Senior Unsecured Notes due 2027 [Member]              
Subsequent Event [Line Items]              
Debt instrument redemption percent 27.00%            
Debt instrument, interest rate 5.00%            
Debt instrument maturity year 2027