XML 177 R131.htm IDEA: XBRL DOCUMENT v3.19.1
Financial Instruments - Additional Information - Risk Management (Detail)
$ in Millions, $ in Millions
12 Months Ended
Dec. 31, 2018
MXN ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2017
MXN ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2016
MXN ($)
Dec. 31, 2018
USD ($)
Disclosure of detailed information about financial instruments [line items]            
Hypothetic foreign exchange rate strengthening 10.00% 10.00%        
Financial debt percentage 63.00% 63.00%        
Decrease in net income due to change in the fair value $ 210 $ 11 $ 283 $ 14    
Hypothetical market price percentage 10.00% 10.00%        
Current maturities of debt $ 129   15,685      
Other financial obligations 12,739   19,362      
Cash flows provided by operating activities from continuing operations 26,535   $ 30,997   $ 38,030  
Revolving credit facility $ 22,303          
Euro [Member]            
Disclosure of detailed information about financial instruments [line items]            
Financial debt percentage 29.00% 29.00%        
Pounds [member]            
Disclosure of detailed information about financial instruments [line items]            
Borrowings, interest rate 2.90%   2.60%     2.90%
Financial debt percentage 5.00% 5.00%        
Philippine pesos [member]            
Disclosure of detailed information about financial instruments [line items]            
Borrowings, interest rate 4.60%   4.60%     4.60%
Financial debt percentage 3.00% 3.00%        
Conversion Option [member]            
Disclosure of detailed information about financial instruments [line items]            
Decrease in net income due to change in the fair value $ 16 $ 1 $ 180 $ 9    
Hypothetical market price percentage 10.00% 10.00% 10.00% 10.00%    
Hedge fund investments [member]            
Disclosure of detailed information about financial instruments [line items]            
Foreign currency translation   $ 1,250        
Hypothetic 10% strengthening of the dollar against the Mexican peso [member]            
Disclosure of detailed information about financial instruments [line items]            
Reduction in income $ 63 1,240 $ 119 $ 2,343    
Interest rate risk [member]            
Disclosure of detailed information about financial instruments [line items]            
Borrowings, adjustment to interest rate basis 2.41%   2.68%     2.41%
Reduction in income $ 366 $ 19 $ 353 $ 18    
Interest rate risk [member] | Top of range [member]            
Disclosure of detailed information about financial instruments [line items]            
Borrowings, interest rate 0.50%   0.50%     0.50%
Interest rate risk [member] | Floating interest rate [member]            
Disclosure of detailed information about financial instruments [line items]            
Borrowings, interest rate 37.00%   31.00%     37.00%
Currency risk [member] | Mexico [member]            
Disclosure of detailed information about financial instruments [line items]            
Percentage of entity's revenue 22.00% 22.00%        
Currency risk [member] | United States [member]            
Disclosure of detailed information about financial instruments [line items]            
Percentage of entity's revenue 26.00% 26.00%        
Currency risk [member] | United Kingdom [member]            
Disclosure of detailed information about financial instruments [line items]            
Percentage of entity's revenue 8.00% 8.00%        
Currency risk [member] | Germany [member]            
Disclosure of detailed information about financial instruments [line items]            
Percentage of entity's revenue 4.00% 4.00%        
Currency risk [member] | France [member]            
Disclosure of detailed information about financial instruments [line items]            
Percentage of entity's revenue 6.00% 6.00%        
Currency risk [member] | Poland [member]            
Disclosure of detailed information about financial instruments [line items]            
Percentage of entity's revenue 2.00% 2.00%        
Currency risk [member] | Spain [member]            
Disclosure of detailed information about financial instruments [line items]            
Percentage of entity's revenue 2.00% 2.00%        
Currency risk [member] | Rest Of Europe Region [member]            
Disclosure of detailed information about financial instruments [line items]            
Percentage of entity's revenue 2.00% 2.00%        
Currency risk [member] | Colombia [member]            
Disclosure of detailed information about financial instruments [line items]            
Percentage of entity's revenue 4.00% 4.00%        
Currency risk [member] | Costa Rica [member]            
Disclosure of detailed information about financial instruments [line items]            
Percentage of entity's revenue 1.00% 1.00%        
Currency risk [member] | Panama [member]            
Disclosure of detailed information about financial instruments [line items]            
Percentage of entity's revenue 2.00% 2.00%        
Currency risk [member] | Rest of South, Central America and the Caribbean region [member]            
Disclosure of detailed information about financial instruments [line items]            
Percentage of entity's revenue 2.00% 2.00%        
Currency risk [member] | Caribbean Tcl [member]            
Disclosure of detailed information about financial instruments [line items]            
Percentage of entity's revenue 1.00% 1.00%        
Currency risk [member] | Philippines [member]            
Disclosure of detailed information about financial instruments [line items]            
Percentage of entity's revenue 2.00% 2.00%        
Currency risk [member] | Egypt [member]            
Disclosure of detailed information about financial instruments [line items]            
Percentage of entity's revenue 1.00% 1.00%        
Currency risk [member] | Asia, Middle East and Africa [member]            
Disclosure of detailed information about financial instruments [line items]            
Percentage of entity's revenue 1.00% 1.00%        
Currency risk [member] | Other Operations [Member]            
Disclosure of detailed information about financial instruments [line items]            
Percentage of entity's revenue 7.00% 7.00%        
Liquidity risk [member]            
Disclosure of detailed information about financial instruments [line items]            
Current maturities of debt $ 13,622          
Other financial obligations 22,891          
Cash flows provided by operating activities from continuing operations 26,545          
Revolving credit facility 16,211         $ 825
Credit risk [member]            
Disclosure of detailed information about financial instruments [line items]            
Expense recognised during period for bad and doubtful debts for related party transaction $ 2,336