v3.26.1
Intangible Assets - Carrying Amounts of Identifiable Intangible Assets (Detail) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Goodwill and Intangible Assets Disclosure [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) $ (137) (553) $ (254)
Finite-lived intangible assets, Ending balance 6,987   6,987  
Intangible assets, Beginning balance     27,968  
Total, amortization expense     (553)  
Intangible assets, Ending balance $ 27,415   $ 27,415