v3.26.1
Equity Method Accounted Investees - Reconciliation From Equity to Investment (Details)
$ in Millions, $ in Millions
12 Months Ended
Oct. 31, 2023
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2025
MXN ($)
Dec. 31, 2024
MXN ($)
Equity Method Accounted Investees          
Equity attributable to the equity interest in IFS TopCo   $ 13,606 [1]   $ 244,982 $ 297,502
IFS TopCo LLC          
Equity Method Accounted Investees          
Equity attributable to the equity interest in IFS TopCo   $ 1,871 $ 2,051 33,614 41,564
Economic ownership percentage 37.08% 37.08% 37.08%    
Investment in IFS TopCo investment exclusive of goodwill   $ 694 $ 760 12,465 15,413
Goodwill allocated   96 96 1,727 1,943
IFS TopCo investment   $ 790 $ 856 $ 14,192 $ 17,356
[1] Convenience translation to U.S. dollars ($) – See Note 2.2.4