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Accounts Payable (Tables)
12 Months Ended
Dec. 31, 2020
Text block [abstract]  
Aging Analysis of Accounts Payable
The aging analysis of accounts payable is as follows:
 
   As of   As of 
   
December 31, 2020
Million
   
December 31, 2019
Million
 
Payable in the periods below:
          
Within 1 month or on demand
   142,653    139,856 
After 1 month but within 3 months
   6,143    6,270 
After 3 months but within 6 months
   3,422    4,839 
After 6 months but within 9 months
   5,408    4,569 
After 9 months but within 12 months
   10,364    9,284 
   
 
 
   
 
 
 
    167,990    164,818