 
 
|  |  | December 31, 2017 |  |  | December 31, 2016 |  | ||
| Authorized shares |  |  | 120,000,000,000 |  |  |  | 120,000,000,000 |  | 
| Subscribed fully paid shares |  |  | 22,281,017,159 |  |  |  | 22,281,017,159 |  | 
| Total outstanding shares |  |  | 22,281,017,159 |  |  |  | 22,281,017,159 |  | 
|  |  |  |  |  |  |  |  |  | 
| The outstanding shares are as follows: |  |  |  |  |  |  |  |  | 
| Common voting shares (1) |  |  | 15,173,180,765 |  |  |  | 15,254,876,823 |  | 
| Preferred non-voting shares (1) |  |  | 7,107,836,394 |  |  |  | 7,026,140,336 |  | 
|  |  | December 31, 2017 |  |  | December 31, 2016 |  | ||
| Retained earnings |  | Ps. | 1,829,515 |  |  | Ps. | 919,601 |  | 
| Legal reserve |  |  | 11,140 |  |  |  | 11,140 |  | 
| Statutory and voluntary reserves |  |  | 5,333,763 |  |  |  | 5,591,387 |  | 
|  |  | Ps. | 7,174,418 |  |  | Ps. | 6,522,128 |  | 
|  |  | December 31, 2017 |  |  | June 30, 2016 |  |  | December 31, 2015 |  | |||
| Net income for the periods ended in |  |  | 1,053,594 |  |  |  | 1,258,835 |  |  |  | 1,086,061 |  | 
| Cash dividends declared |  | Ps.    | In the general assembly held in March 2017, 58.80 pesos per share payable in twelve installments of 4.90 pesos per share, from April 2017 to March 2018. |  |  | Ps.    | 29.40  per share payable in six (6) installments of P.s. 4.90 per share between October 2016 and March 2017 (based on profits from the first half of 2016) |  |  | Ps.    | 29.40 per share payable in six (6) installments of P.s. 4.90 per share between April 2016 and September 2016 (based on profits from the second half of 2015) |  | 
| Common shares outstanding |  |  | 15,240,124,702 |  |  |  | 15,258,916,143 |  |  |  | 15,265,983,336 |  | 
| Preferred shares outstanding |  |  | 7,040,892,457 |  |  |  | 7,022,101,016 |  |  |  | 7,015,033,823 |  | 
| Total outstanding shares |  |  | 22,281,017,159 |  |  |  | 22,281,017,159 |  |  |  | 22,281,017,159 |  | 
| Total dividends declared |  |  | 1,310,124 |  |  |  | 655,062 |  |  |  | 655,062 |  | 
| a) | Basic net income per share | 
|  |  | December 31, 2017 |  |  | December 31, 2016 |  |  | December 31, 2015 |  | |||
| Net income for the year |  | Ps. | 3,162,433 |  |  | Ps. | 3,516,936 |  |  | Ps. | 3,345,686 |  | 
| Less: participation of non- controlling interests |  |  | (1,200,019 | ) |  |  | (1,377,070 | ) |  |  | (1,304,322 | ) | 
| Net income attributable to controlling interest |  |  | 1,962,414 |  |  |  | 2,139,866 |  |  |  | 2,041,364 |  | 
|  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Less: preferred dividends declared |  |  | - |  |  |  | - |  |  |  | - |  | 
| Less: Allocation of undistributed earnings to preferred stockholders (1)(2) |  |  | (622,215 | ) |  |  | (674,042 | ) |  |  | (638,734 | ) | 
| Net Income allocated to common shareholders for basic and diluted EPS |  |  | 1,340,199 |  |  | Ps. | 1,465,824 |  |  | Ps. | 1,402,630 |  | 
| Weighted average number of common shares outstanding used in basic EPS calculation (2) |  |  | 15,216,468,601 |  |  |  | 15,262,660,115 |  |  |  | 15,309,380,685 |  | 
| Basic and Diluted earnings per share to common shareholders (pesos) |  |  | 88.076 |  |  |  | 96.040 |  |  |  | 91.619 |  | 
| Basic and Diluted earnings per ADS in pesos (3) |  |  | 1,761.51 |  |  |  | 1,920.80 |  |  |  | 1,832.38 |  | 
|  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Weighted average of the common and preferred shares used in the calculation of net income for basic shares (common and preferential) |  |  | 22,281,017,159 |  |  |  | 22,281,017,159 |  |  |  | 22,281,017,159 |  | 
| Basic net income of the owners of the parent per share |  |  | 88.076 |  |  |  | 96.040 |  |  |  | 91.619 |  | 
| b) | Diluted net income per share | 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Unrealized gains (losses) on available-for-sale |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ||||||||||||||||
|  |  | Net investment in foreign subsidiaries operations |  |  | Hedging derivative instrument |  |  | Hedging non- derivative instrument |  |  | Cash flow hedges |  |  | Foreign currency translation Differences for foreign operations |  |  | Debt securities |  |  | Equity securities |  |  | Investments in associates and join ventures |  |  | Actuarial gains (losses) from defined benefit pension plans |  |  | Income tax |  |  | Total comprehensive income, net of taxes |  |  | Non- controlling interest |  |  | Owners of the parent |  | |||||||||||||
| Beginning balance 2015 |  | Ps. | 1,366,620 |  |  | Ps. | (870,911 | ) |  | Ps. | (483,633 | ) |  | Ps. | (29,257 | ) |  | Ps. | 26,361 |  |  | Ps. | (298,345 | ) |  | Ps. | 461,923 |  |  | Ps. | 79,858 |  |  | Ps. | 2,841 |  |  | Ps. | 442,582 |  |  |  Ps. | 698,038 |  |  | Ps. | 325,710 |  |  | Ps. | 372,328 |  | 
| Current-period change |  |  | 2,366,849 |  |  |  | (1,683,346 | ) |  |  | (755,431 | ) |  |  | 17,500 |  |  |  | 24,878 |  |  |  | (922,083 | ) |  |  | (6,548 | ) |  |  | 31,964 |  |  |  | 6,162 |  |  |  | 1,198,614 |  |  |  | 278,559 |  |  |  | 112,758 |  |  |  | 165,801 |  | 
| Ending balance 2015 |  | Ps. | 3,733,469 |  |  | Ps. | (2,554,257 | ) |  | Ps. | (1,239,064 | ) |  | Ps. | (11,757 | ) |  | Ps. | 51,239 |  |  | Ps. | (1,220,428 | ) |  | Ps. | 455,375 |  |  | Ps. | 111,822 |  |  | Ps. | 9,003 |  |  | Ps. | 1,641,196 |  |  | Ps. | 976,597 |  |  | Ps. | 438,468 |  |  | Ps. | 538,129 |  | 
| Current-period change |  |  | (475,000 | ) |  |  | 291,506 |  |  |  | 35,819 |  |  |  | 17,967 |  |  |  | (125,161 | ) |  |  | 948,212 |  |  |  | 34,509 |  |  |  | (20,061 | ) |  |  | (41,228 | ) |  |  | (364,356 | ) |  |  | 302,207 |  |  |  | 90,719 |  |  |  | 211,488 |  | 
| Ending balance 2016 |  | Ps. | 3,258,469 |  |  | Ps. | (2,262,751 | ) |  | Ps. | (1,203,245 | ) |  | Ps. | 6,210 |  |  | Ps. | (73,922 | ) |  | Ps. | (272,216 | ) |  | Ps. | 489,884 |  |  | Ps. | 91,761 |  |  | Ps. | (32,225 | ) |  | Ps. | 1,276,840 |  |  | Ps. | 1,278,804 |  |  | Ps. | 529,187 |  |  | Ps. | 749,617 |  | 
| Current-period change |  |  | (47,197 | ) |  |  | 16,832 |  |  |  | 30,568 |  |  |  | (2,340 | ) |  |  | (91,497 | ) |  |  | 284,480 |  |  |  | 57,245 |  |  |  | 1,128 |  |  |  | (100,232 | ) |  |  | (73,617 | ) |  |  | 75,370 |  |  |  | 38,121 |  |  |  | 37,249 |  | 
| Ending balance 2017 |  | Ps. | 3,211,272 |  |  | Ps. | (2,245,919 | ) |  | Ps. | (1,172,677 | ) |  | Ps. | 3,870 |  |  | Ps. | (165,419 | ) |  | Ps. | 12,264 |  |  | Ps. | 547,129 |  |  | Ps. | 92,889 |  |  | Ps. | (132,457 | ) |  | Ps. | 1,203,223 |  |  | Ps. | 1,354,174 |  |  | Ps. | 567,308 |  |  | Ps. | 786,866 |  |