XML 28 R84.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Earnings per Share - Summary of Basic and Diluted Earnings per Share (Detail)
shares in Millions, $ in Millions, $ in Millions
 9 Months Ended
Sep. 30, 2019
USD ($)
shares
Sep. 30, 2019
MXN ($)
shares
Sep. 30, 2018
MXN ($)
shares
Earnings per share- Equity holders of the parent (U.S. dollars and Mexican pesos):      
Consolidated net (loss) income $ 530 $ 10,462 $ 8,894
Consolidated net income (loss) attributable to equity holders of the parent- controlling operations discontinued     $ 324
Weighted average number of shares for basic earnings per share (millions of shares) | shares 16,807 16,807 16,807
Series A shares [member]      
Earnings per share- Equity holders of the parent (U.S. dollars and Mexican pesos):      
Consolidated net (loss) income   $ 4,768 $ 3,873
Consolidated net income attributable to equity holders of the parent- controlling operations   $ 4,768 3,719
Consolidated net income (loss) attributable to equity holders of the parent- controlling operations discontinued     $ 153
Weighted average number of shares for basic earnings per share (millions of shares) | shares 7,937 7,937 7,937
Series D share [member]      
Earnings per share- Equity holders of the parent (U.S. dollars and Mexican pesos):      
Consolidated net (loss) income   $ 2,804 $ 2,278
Consolidated net income attributable to equity holders of the parent- controlling operations   $ 2,804 2,188
Consolidated net income (loss) attributable to equity holders of the parent- controlling operations discontinued     $ 90
Weighted average number of shares for basic earnings per share (millions of shares) | shares 4,668 4,668 4,668
Series B Shares [member]      
Earnings per share- Equity holders of the parent (U.S. dollars and Mexican pesos):      
Consolidated net (loss) income   $ 946 $ 769
Consolidated net income attributable to equity holders of the parent- controlling operations   $ 946 739
Consolidated net income (loss) attributable to equity holders of the parent- controlling operations discontinued     $ 30
Weighted average number of shares for basic earnings per share (millions of shares) | shares 1,576 1,576 1,576
Series L share [member]      
Earnings per share- Equity holders of the parent (U.S. dollars and Mexican pesos):      
Consolidated net (loss) income   $ 1,577 $ 1,281
Consolidated net income attributable to equity holders of the parent- controlling operations   $ 1,577 1,231
Consolidated net income (loss) attributable to equity holders of the parent- controlling operations discontinued     $ 51
Weighted average number of shares for basic earnings per share (millions of shares) | shares 2,626 2,626 2,626