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Earnings per Share (Tables)
 12 Months Ended
Dec. 31, 2022
Earnings per share [abstract]  
Calculation of Basic and Diluted Earnings Per Share Amounts
202220212020
Per SeriesPer SeriesPer SeriesPer SeriesPer SeriesPer Series 
“B” Shares“D” Shares“B” Shares“D” Shares“B” Shares“D” Shares
(in millions of shares)                                     
Weighted average number of shares for basic earnings per share 9,241.72 8,625.92 9,242.88 8,630.54 9,243.59 8,633.38 
Effect of dilution associated with non-vested shares for share based payment plans 4.70 18.79 3.54 14.17 2.83 11.33 
Weighted average number of shares adjusted for the effect of dilution (Shares outstanding) 9,246.42 8,644.71 9,246.42 8,644.71 9,246.42 8,644.71 
Dividend rights per series (see Note 23.1) 100 %125 %100 %125 %100 %125 %
Weighted average number of shares further adjusted to reflect dividend rights 9,246.42 10,805.89 9,246.42 10,805.89 9,246.42 10,805.89 
Basic earnings per share 1.19 1.49 1.42 1.78 (0.10)(0.12)
Diluted earnings per share 1.19 1.49 1.42 1.78 (0.10)(0.12)
Allocation of earnings, weighted 46.11 %53.89 %46.11 %53.89 %46.11 %53.89 %
Net controlling interest income allocated Ps.11,025 Ps.12,884 Ps.13,139 Ps.15,356 Ps.(890)Ps.(1,040)