v3.26.3
Capital Stock - Additional Information (Detail) - Share Repurchase Program [Member] - USD ($)
shares in Millions, $ in Billions
1 Months Ended 9 Months Ended
Jan. 31, 2026
Sep. 30, 2026
Schedule of Capitalization, Equity [Line Items]    
Shares authorized to be repurchased   7.9
Common Stock [Member]    
Schedule of Capitalization, Equity [Line Items]    
Increased amount of shares to be purchased 9.2  
Subco Units [Member]    
Schedule of Capitalization, Equity [Line Items]    
Common shares repurchased   1.3
Common shares repurchased, value   $ 1.4