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Capital Stock -Common Shares Issued and Outstanding and Related Activity (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Schedule of Capitalization, Equity [Line Items]      
Issuance of Subco/ common shares in connection with the GIP Transaction   $ 5,904  
Cancellation of treasury stock, common in connection with the GIP Transaction $ 0 $ (12,829) $ 0
Common Stock [Member]      
Schedule of Capitalization, Equity [Line Items]      
Shares, beginning balance 155,318,170 172,075,373 172,075,373
Shares/ Subco units repurchased 0 0 0
Net issuance of common shares related to employee stock transactions 713,879 456,182 0
Issuance of Subco/ common shares in connection with the GIP Transaction $ 244,240 $ 6,908,416  
Cancellation of treasury stock, common in connection with the GIP Transaction   $ (24,121,801)  
Shares, ending balance 156,276,289 155,318,170 172,075,373
Common Stock [Member] | Shares Outstanding [Member]      
Schedule of Capitalization, Equity [Line Items]      
Shares, beginning balance 154,947,813 148,500,074 149,756,492
Shares/ Subco units repurchased (872,569) (1,909,964) (2,176,538)
Net issuance of common shares related to employee stock transactions 749,687 1,449,287 920,120
Issuance of Subco/ common shares in connection with the GIP Transaction   $ 6,908,416  
Cancellation of treasury stock, common in connection with the GIP Transaction   $ 0  
Shares, ending balance 155,069,171 154,947,813 148,500,074
Treasury Stock, Common [Member]      
Schedule of Capitalization, Equity [Line Items]      
Shares, beginning balance (370,357) (23,575,299) (22,318,881)
Shares/ Subco units repurchased (872,569) (1,909,964) (2,176,538)
Net issuance of common shares related to employee stock transactions 35,808 993,105 920,120
Issuance of Subco/ common shares in connection with the GIP Transaction $ 0 $ 0  
Cancellation of treasury stock, common in connection with the GIP Transaction   $ 24,121,801  
Shares, ending balance (1,207,118) (370,357) (23,575,299)
Subco Units [Member]      
Schedule of Capitalization, Equity [Line Items]      
Shares, beginning balance 0 0 0
Shares/ Subco units repurchased (705,118) 0 0
Net issuance of common shares related to employee stock transactions 0 0 0
Issuance of Subco/ common shares in connection with the GIP Transaction $ 8,448,427 $ 0  
Cancellation of treasury stock, common in connection with the GIP Transaction   $ 0  
Shares, ending balance 7,743,309 0 0
Subco Units [Member] | Shares Outstanding [Member]      
Schedule of Capitalization, Equity [Line Items]      
Shares, beginning balance 0 0 0
Shares/ Subco units repurchased (705,118) 0 0
Net issuance of common shares related to employee stock transactions   0 0
Issuance of Subco/ common shares in connection with the GIP Transaction $ 8,448,427 $ 0  
Cancellation of treasury stock, common in connection with the GIP Transaction   $ 0  
Shares, ending balance 7,743,309 0 0