v3.26.3
Intangible Assets - Carrying Amounts of Identifiable Intangible Assets (Detail) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Intangible Asset, Goodwill and Other [Abstract]        
Indefinite-lived intangible assets, Beginning Balance     $ 20,428  
Indefinite-lived intangible assets, amortization expense     0  
Indefinite-lived intangible assets, Ending Balance $ 20,428   20,428  
Finite-lived intangible assets, Beginning balance     7,540  
Finite-lived intangible assets, amortization expense (276) $ (253) (829) $ (507)
Finite-lived intangible assets, Ending balance 6,711   6,711  
Intangible assets, Beginning balance     27,968  
Total, amortization expense     (829)  
Intangible assets, Ending balance $ 27,139   $ 27,139