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Capital Stock - Additional Information (Detail)
$ / shares in Units, SubcoUnit in Millions, $ in Millions
 1 Months Ended 12 Months Ended
Jul. 01, 2025
shares
Jan. 31, 2026
shares
Dec. 31, 2025
USD ($)
SubcoUnit
$ / shares
shares
Dec. 31, 2024
USD ($)
$ / shares
shares
Dec. 31, 2023
USD ($)
$ / shares
shares
Dec. 31, 2022
shares
Schedule of Capitalization, Equity [Line Items]            
Dividends cash per common share | $ / shares     $ 20.84 $ 20.4 $ 20  
Aggregate dividends | $     $ 3,265 $ 3,101 $ 3,035  
Common shares repurchased, value | $       $ 1,625 $ 1,509  
Share Repurchase Program [Member]            
Schedule of Capitalization, Equity [Line Items]            
Shares authorized to be repurchased     2,200,000      
HPS Investment Partners [Member]            
Schedule of Capitalization, Equity [Line Items]            
Subco units outstanding | SubcoUnit     7.7      
Common Stock [Member]            
Schedule of Capitalization, Equity [Line Items]            
Common stock shares issued     156,276,289 155,318,170 172,075,373 172,075,373
Common shares repurchased     0 0 0  
Common Stock [Member] | Share Repurchase Program [Member]            
Schedule of Capitalization, Equity [Line Items]            
Increased amount of shares to be purchased   9,200,000        
Subco Units [Member]            
Schedule of Capitalization, Equity [Line Items]            
Common stock shares issued     7,743,309 0 0 0
Number of shares issued 8,500,000          
Common shares repurchased     705,118 0 0  
Subco Units [Member] | Share Repurchase Program [Member]            
Schedule of Capitalization, Equity [Line Items]            
Common shares repurchased, value | $     $ 1,600      
Common shares repurchased     1,600,000      
Subco Units [Member] | HPS Investment Partners [Member]            
Schedule of Capitalization, Equity [Line Items]            
Number of shares issued 8,500,000