v3.26.1
Share Capital (Schedule of Common Stock Issued and Outstanding) (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Class Of Stock [Line Items]    
Shares of Common Stock Outstanding, Beginning of Year 253,300,000 260,400,000
Shares of Common Stock Purchased (1,500,000) (7,800,000)
Shares of Common Stock Issued 30,900,000 700,000
Shares of Common Stock Outstanding, End of Period 282,700,000 253,300,000
Shares of Common Stock Outstanding, Beginning of Year $ 3 $ 3
Shares of Common Stock Purchased (84)  
Shares of Common Stock Issued 1,277  
Shares of Common Stock Outstanding, End of Period 3 3
Share Capital [Member]    
Class Of Stock [Line Items]    
Shares of Common Stock Purchased 0 0
Shares of Common Stock Issued $ 0 $ 0