2019 
R'000
 
   2018 
R'000 
  
33.  Operating leases             
   Leases which have fixed determinable escalations are charged to the income statement on a straight-line basis and liabilities are raised for the difference between the actual lease expense and the charge recognised in the income statement. The liabilities are classified based on the timing of the reversal which will occur when the actual cash flow exceeds the income statement amounts.             
   Operating lease liabilities  153 888     160 946    
   Less short-term portion included in trade and other payables  (58 252)    (19 866)   
   Long-term portion  95 636     141 080    
   Operating lease commitments             
   Land and buildings  5 703 599     5 687 205    
      Due in one year  1 151 193     959 870    
      Due after one year but within five years  2 495 569     2 327 236    
      Due after five years  2 056 837     2 400 099    
   Equipment and vehicles  373 487     647 539    
      Due in one year  140 352     269 936    
      Due after one year but within five years  198 126     332 263    
      Due after five years  35 009     45 340    
      6 077 086     6 334 744    
   Less amounts raised as liabilities  (153 888)    (160 946)   
      5 923 198     6 173 798